HEADER    SIGNALLING PROTEIN                      15-APR-04   1V1F              
TITLE     STRUCTURE OF THE ARABIDOPSIS THALIANA SOS3 COMPLEXED WITH CALCIUM(II) 
TITLE    2 AND MANGANESE(II) IONS                                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CALCINEURIN B-LIKE PROTEIN 4;                              
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: SALT OVERLY SENSITIVE 3 (SOS3);                             
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ARABIDOPSIS THALIANA;                           
SOURCE   3 ORGANISM_COMMON: MOUSE-EAR CRESS;                                    
SOURCE   4 ORGANISM_TAXID: 3702;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET14B                                    
KEYWDS    SIGNALLING PROTEIN, SALT STRESS RESPONSE IN PLANTS, CALCINEURIN B-    
KEYWDS   2 LIKE PROTEIN, PROTEIN CRYSTALLOGRAPHY, CALCIUM SENSOR, EF-HAND       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.J.SANCHEZ-BARRENA,M.MARTINEZ-RIPOLL,J.K.ZHU,A.ALBERT                
REVDAT   4   13-DEC-23 1V1F    1       LINK                                     
REVDAT   3   16-OCT-19 1V1F    1       REMARK                                   
REVDAT   2   24-FEB-09 1V1F    1       VERSN                                    
REVDAT   1   19-JAN-05 1V1F    0                                                
JRNL        AUTH   M.J.SANCHEZ-BARRENA,M.MARTINEZ-RIPOLL,J.K.ZHU,A.ALBERT       
JRNL        TITL   THE STRUCTURE OF THE ARABIDOPSIS THALIANA SOS3: MOLECULAR    
JRNL        TITL 2 MECHANISM OF SENSING CALCIUM FOR SALT STRESS RESPONSE        
JRNL        REF    J.MOL.BIOL.                   V. 345  1253 2005              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   15644219                                                     
JRNL        DOI    10.1016/J.JMB.2004.11.025                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.24                                        
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 6609                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.238                           
REMARK   3   R VALUE            (WORKING SET) : 0.237                           
REMARK   3   FREE R VALUE                     : 0.262                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.300                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 367                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 3.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.08                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 454                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3290                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 22                           
REMARK   3   BIN FREE R VALUE                    : 0.3980                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1547                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 27                                      
REMARK   3   SOLVENT ATOMS            : 40                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 61.96                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.97000                                             
REMARK   3    B22 (A**2) : -0.97000                                             
REMARK   3    B33 (A**2) : 1.94000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 2.371         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.400         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.306         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 15.975        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.895                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.904                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1593 ; 0.016 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2149 ; 1.926 ; 1.976       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   187 ; 8.262 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   237 ; 0.134 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1195 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   804 ; 0.261 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    64 ; 0.221 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    40 ; 0.377 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     2 ; 0.241 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):   940 ; 0.872 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1528 ; 1.719 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   653 ; 2.321 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   621 ; 4.142 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS. RESIDUES FROM A1 - A14 AND FROM A203 - A222 ARE NOT      
REMARK   3  INCLUDED IN THE MODEL. THE LOOP FROM A67 - A75 DISPLAYS POOR        
REMARK   3  ELECTRON DENSITY.                                                   
REMARK   4                                                                      
REMARK   4 1V1F COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 15-APR-04.                  
REMARK 100 THE DEPOSITION ID IS D_1290014998.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-OCT-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 4.80                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : BM16                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.92                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 7041                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 46.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.500                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.7                               
REMARK 200  DATA REDUNDANCY                : 4.500                              
REMARK 200  R MERGE                    (I) : 0.08600                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 4.5000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.16                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.51000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: CCP4                                                  
REMARK 200 STARTING MODEL: SOS3 CA(II) COMPLEX, PDB ENTRY 1V1G                  
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 64.70                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.48                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PRIOR TO CRYSTALLIZATION THE PROTEIN     
REMARK 280  WAS PREINCUBATED WITH 3.8 MM CACL2 PLUS 3.8 MM MNCL2 TO REACH A     
REMARK 280  FINAL PROTEIN CONCENTRATION OF 10 MG/ML AND A PROTEIN:METAL ION     
REMARK 280  RATIO 1:10:10. CRYSTALLIZATION EXPERIMENTS WERE CARRIED OUT AT      
REMARK 280  ROOM TEMPERATURE. CRYSTALS WERE GROWN USING VAPOUR DIFFUSION        
REMARK 280  TECHNIQUES FROM DROPS CONTAINING SOS3-CA-MN, RESERVOIR SOLUTIONS    
REMARK 280  (24%(W/V) METHYL-PENTANEDIOL, 16%(W/V) POLYETHYLENE GLYCOL 4000     
REMARK 280  AND 0.1 NA-CITRATE PH 4.8) AND NAI 1M IN A RATIO 2:1:0.75, PH       
REMARK 280  4.80, VAPOR DIFFUSION                                               
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 41                             
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       3555   -Y,X+1/2,Z+1/4                                          
REMARK 290       4555   Y+1/2,-X,Z+3/4                                          
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X,-Y,Z                                                 
REMARK 290       7555   -Y+1/2,X,Z+3/4                                          
REMARK 290       8555   Y,-X+1/2,Z+1/4                                          
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       45.95000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000       45.95000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       42.80000            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       45.95000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       21.40000            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       45.95000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       64.20000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       45.95000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       45.95000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       42.80000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   7  0.000000 -1.000000  0.000000       45.95000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       64.20000            
REMARK 290   SMTRY1   8  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000       45.95000            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       21.40000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THE QUATERNARY STRUCTURE DESCRIPTION FOR THIS                
REMARK 300   ENTRYWAS PROVIDED BY THE DEPOSITORS                                
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PQS                                                   
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000       91.90000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       91.90000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     GLY A     2                                                      
REMARK 465     CYS A     3                                                      
REMARK 465     SER A     4                                                      
REMARK 465     VAL A     5                                                      
REMARK 465     SER A     6                                                      
REMARK 465     LYS A     7                                                      
REMARK 465     LYS A     8                                                      
REMARK 465     LYS A     9                                                      
REMARK 465     LYS A    10                                                      
REMARK 465     LYS A    11                                                      
REMARK 465     ASN A    12                                                      
REMARK 465     ALA A    13                                                      
REMARK 465     MET A    14                                                      
REMARK 465     PHE A   203                                                      
REMARK 465     PRO A   204                                                      
REMARK 465     SER A   205                                                      
REMARK 465     PHE A   206                                                      
REMARK 465     VAL A   207                                                      
REMARK 465     SER A   208                                                      
REMARK 465     SER A   209                                                      
REMARK 465     CYS A   210                                                      
REMARK 465     GLU A   211                                                      
REMARK 465     GLU A   212                                                      
REMARK 465     GLU A   213                                                      
REMARK 465     GLU A   214                                                      
REMARK 465     MET A   215                                                      
REMARK 465     GLU A   216                                                      
REMARK 465     LEU A   217                                                      
REMARK 465     GLN A   218                                                      
REMARK 465     ASN A   219                                                      
REMARK 465     VAL A   220                                                      
REMARK 465     SER A   221                                                      
REMARK 465     SER A   222                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP A  84   CB  -  CG  -  OD2 ANGL. DEV. =   7.0 DEGREES          
REMARK 500    ASP A 158   CB  -  CG  -  OD2 ANGL. DEV. =   5.4 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    SER A  48      -22.33   -140.45                                   
REMARK 500    SER A  49      -47.92    -27.57                                   
REMARK 500    LEU A  63      -75.06    -37.43                                   
REMARK 500    ARG A  67     -101.39    -71.18                                   
REMARK 500    ASN A  68       83.36    -69.77                                   
REMARK 500    ASN A  70      -91.39   -118.93                                   
REMARK 500    ARG A  71     -102.48    -80.49                                   
REMARK 500    ASN A  88       21.17   -148.68                                   
REMARK 500    ASP A 121       75.47    -62.05                                   
REMARK 500    ASP A 169       31.00   -155.11                                   
REMARK 500    PRO A 185       -0.22    -56.03                                   
REMARK 500    ASN A 190       -0.51    -59.77                                   
REMARK 500    LEU A 196        0.31    -57.79                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ARG A   15     PRO A   16                 -147.55                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2005        DISTANCE =  6.46 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A1207  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER A  47   O                                                      
REMARK 620 2 ILE A  51   O    76.6                                              
REMARK 620 3 ASP A  53   OD1 111.2  98.1                                        
REMARK 620 4 LEU A  55   O    85.8 162.4  89.5                                  
REMARK 620 5 GLU A  60   OE1 124.5  98.7 124.1  89.9                            
REMARK 620 6 GLU A  60   OE2  80.0  84.2 168.8  91.4  44.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A1208  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  84   OD2                                                    
REMARK 620 2 LYS A  86   O    72.1                                              
REMARK 620 3 ASN A  88   OD1  81.2  70.1                                        
REMARK 620 4 VAL A  90   O    82.7 147.7  86.7                                  
REMARK 620 5 GLU A  95   OE2 150.5 123.5 126.3  88.1                            
REMARK 620 6 GLU A  95   OE1 116.7  77.1 135.3 133.7  53.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A1209  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 121   OD1                                                    
REMARK 620 2 ARG A 123   O    57.2                                              
REMARK 620 3 THR A 125   OG1  86.5  84.9                                        
REMARK 620 4 PHE A 127   O    83.4 140.4  89.5                                  
REMARK 620 5 GLU A 129   OE2 154.8 111.8  69.3 102.6                            
REMARK 620 6 GLU A 132   OE1 130.5  84.8 123.2 129.5  63.6                      
REMARK 620 7 GLU A 132   OE2 149.0 132.0 121.3  83.6  56.0  47.4                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MN A1210  MN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 165   OD1                                                    
REMARK 620 2 LYS A 171   O    88.6                                              
REMARK 620 3 GLU A 176   OE1 136.3  95.5                                        
REMARK 620 4 GLU A 176   OE2 104.5 147.9  54.8                                  
REMARK 620 5 HOH A2039   O   135.6  87.0  88.1 102.3                            
REMARK 620 N                    1     2     3     4                             
REMARK 650                                                                      
REMARK 650 HELIX                                                                
REMARK 650 DETERMINATION METHOD: AUTHOR PROVIDED.                               
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 DETERMINATION METHOD: AUTHOR PROVIDED.                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A1207                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A1208                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A1209                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MN A1210                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A1203                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A1205                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A1206                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A1213                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A1214                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A1215                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MPD A1211                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MPD A1212                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1V1G   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE ARABIDOPSIS THALIANA SOS3 COMPLEXED WITH            
REMARK 900 CALCIUM(II) ION                                                      
DBREF  1V1F A    1   222  UNP    O81223   O81223           1    222             
SEQRES   1 A  222  MET GLY CYS SER VAL SER LYS LYS LYS LYS LYS ASN ALA          
SEQRES   2 A  222  MET ARG PRO PRO GLY TYR GLU ASP PRO GLU LEU LEU ALA          
SEQRES   3 A  222  SER VAL THR PRO PHE THR VAL GLU GLU VAL GLU ALA LEU          
SEQRES   4 A  222  TYR GLU LEU PHE LYS LYS LEU SER SER SER ILE ILE ASP          
SEQRES   5 A  222  ASP GLY LEU ILE HIS LYS GLU GLU PHE GLN LEU ALA LEU          
SEQRES   6 A  222  PHE ARG ASN ARG ASN ARG ARG ASN LEU PHE ALA ASP ARG          
SEQRES   7 A  222  ILE PHE ASP VAL PHE ASP VAL LYS ARG ASN GLY VAL ILE          
SEQRES   8 A  222  GLU PHE GLY GLU PHE VAL ARG SER LEU GLY VAL PHE HIS          
SEQRES   9 A  222  PRO SER ALA PRO VAL HIS GLU LYS VAL LYS PHE ALA PHE          
SEQRES  10 A  222  LYS LEU TYR ASP LEU ARG GLN THR GLY PHE ILE GLU ARG          
SEQRES  11 A  222  GLU GLU LEU LYS GLU MET VAL VAL ALA LEU LEU HIS GLU          
SEQRES  12 A  222  SER GLU LEU VAL LEU SER GLU ASP MET ILE GLU VAL MET          
SEQRES  13 A  222  VAL ASP LYS ALA PHE VAL GLN ALA ASP ARG LYS ASN ASP          
SEQRES  14 A  222  GLY LYS ILE ASP ILE ASP GLU TRP LYS ASP PHE VAL SER          
SEQRES  15 A  222  LEU ASN PRO SER LEU ILE LYS ASN MET THR LEU PRO TYR          
SEQRES  16 A  222  LEU LYS ASP ILE ASN ARG THR PHE PRO SER PHE VAL SER          
SEQRES  17 A  222  SER CYS GLU GLU GLU GLU MET GLU LEU GLN ASN VAL SER          
SEQRES  18 A  222  SER                                                          
HET    IOD  A1203       1                                                       
HET    IOD  A1204       1                                                       
HET    IOD  A1205       1                                                       
HET    IOD  A1206       1                                                       
HET     CA  A1207       1                                                       
HET     CA  A1208       1                                                       
HET     CA  A1209       1                                                       
HET     MN  A1210       1                                                       
HET    MPD  A1211       8                                                       
HET    MPD  A1212       8                                                       
HET    IOD  A1213       1                                                       
HET    IOD  A1214       1                                                       
HET    IOD  A1215       1                                                       
HETNAM     IOD IODIDE ION                                                       
HETNAM      CA CALCIUM ION                                                      
HETNAM      MN MANGANESE (II) ION                                               
HETNAM     MPD (4S)-2-METHYL-2,4-PENTANEDIOL                                    
FORMUL   2  IOD    7(I 1-)                                                      
FORMUL   6   CA    3(CA 2+)                                                     
FORMUL   9   MN    MN 2+                                                        
FORMUL  10  MPD    2(C6 H14 O2)                                                 
FORMUL  15  HOH   *40(H2 O)                                                     
HELIX    1   1 PRO A   22  ALA A   26  1                                   5    
HELIX    2   2 VAL A   33  LEU A   46  1                                  14    
HELIX    3   3 LYS A   58  PHE A   66  1                                   9    
HELIX    4   4 ASN A   73  PHE A   83  1                                  11    
HELIX    5   5 PHE A   93  GLY A  101  1                                   9    
HELIX    6   6 VAL A  109  TYR A  120  1                                  12    
HELIX    7   7 ARG A  130  GLU A  143  1                                  14    
HELIX    8   8 GLU A  150  ALA A  164  1                                  15    
HELIX    9   9 ILE A  174  LEU A  183  1                                  10    
HELIX   10  10 PRO A  185  MET A  191  5                                   7    
SHEET    1  AA 2 ILE A  56  HIS A  57  0                                        
SHEET    2  AA 2 VAL A  90  ILE A  91 -1  O  ILE A  56   N  ILE A  91           
SHEET    1  AB 2 ILE A 128  GLU A 129  0                                        
SHEET    2  AB 2 LYS A 171  ILE A 172 -1  O  ILE A 172   N  ILE A 128           
LINK         O   SER A  47                CA    CA A1207     1555   1555  2.36  
LINK         O   ILE A  51                CA    CA A1207     1555   1555  2.91  
LINK         OD1 ASP A  53                CA    CA A1207     1555   1555  2.74  
LINK         O   LEU A  55                CA    CA A1207     1555   1555  2.43  
LINK         OE1 GLU A  60                CA    CA A1207     1555   1555  2.71  
LINK         OE2 GLU A  60                CA    CA A1207     1555   1555  3.03  
LINK         OD2 ASP A  84                CA    CA A1208     1555   1555  2.14  
LINK         O   LYS A  86                CA    CA A1208     1555   1555  2.98  
LINK         OD1 ASN A  88                CA    CA A1208     1555   1555  2.67  
LINK         O   VAL A  90                CA    CA A1208     1555   1555  2.17  
LINK         OE2 GLU A  95                CA    CA A1208     1555   1555  2.56  
LINK         OE1 GLU A  95                CA    CA A1208     1555   1555  2.17  
LINK         OD1 ASP A 121                CA    CA A1209     1555   1555  2.37  
LINK         O   ARG A 123                CA    CA A1209     1555   1555  2.73  
LINK         OG1 THR A 125                CA    CA A1209     1555   1555  3.22  
LINK         O   PHE A 127                CA    CA A1209     1555   1555  2.58  
LINK         OE2 GLU A 129                CA    CA A1209     1555   1555  2.90  
LINK         OE1 GLU A 132                CA    CA A1209     1555   1555  2.60  
LINK         OE2 GLU A 132                CA    CA A1209     1555   1555  2.95  
LINK         OD1 ASP A 165                MN    MN A1210     1555   1555  2.23  
LINK         O   LYS A 171                MN    MN A1210     1555   1555  1.96  
LINK         OE1 GLU A 176                MN    MN A1210     1555   1555  2.38  
LINK         OE2 GLU A 176                MN    MN A1210     1555   1555  2.46  
LINK        MN    MN A1210                 O   HOH A2039     1555   1555  2.22  
SITE     1 AC1  5 SER A  47  ILE A  51  ASP A  53  LEU A  55                    
SITE     2 AC1  5 GLU A  60                                                     
SITE     1 AC2  5 ASP A  84  LYS A  86  ASN A  88  VAL A  90                    
SITE     2 AC2  5 GLU A  95                                                     
SITE     1 AC3  7 ASP A 121  LEU A 122  ARG A 123  THR A 125                    
SITE     2 AC3  7 PHE A 127  GLU A 129  GLU A 132                               
SITE     1 AC4  6 ASP A 165  LYS A 167  ASP A 169  LYS A 171                    
SITE     2 AC4  6 GLU A 176  HOH A2039                                          
SITE     1 AC5  2 LYS A  86  GLN A 163                                          
SITE     1 AC6  2 ARG A  15  PRO A 194                                          
SITE     1 AC7  1 LYS A 114                                                     
SITE     1 AC8  1 ASP A  21                                                     
SITE     1 AC9  2 SER A  27  LYS A 178                                          
SITE     1 BC1  1 MET A 152                                                     
SITE     1 BC2  4 ARG A  98  GLU A 111  LYS A 118  ARG A 166                    
SITE     1 BC3  4 LEU A 148  MET A 156  ASN A 184  HOH A2040                    
CRYST1   91.900   91.900   85.600  90.00  90.00  90.00 I 41          8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.010881  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010881  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011682        0.00000