HEADER    CALCIUM BINDING PROTEIN                 14-AUG-89   1ALC              
TITLE     REFINED STRUCTURE OF BABOON ALPHA-LACTALBUMIN AT 1.7 ANGSTROMS        
TITLE    2 RESOLUTION. COMPARISON WITH C-TYPE LYSOZYME                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALPHA-LACTALBUMIN;                                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PAPIO CYNOCEPHALUS;                             
SOURCE   3 ORGANISM_COMMON: YELLOW BABOON;                                      
SOURCE   4 ORGANISM_TAXID: 9556                                                 
KEYWDS    CALCIUM BINDING PROTEIN                                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.R.ACHARYA,D.I.STUART,D.C.PHILLIPS                                   
REVDAT   6   30-OCT-24 1ALC    1       REMARK                                   
REVDAT   5   05-JUN-24 1ALC    1       REMARK SEQADV LINK                       
REVDAT   4   24-FEB-09 1ALC    1       VERSN                                    
REVDAT   3   01-APR-03 1ALC    1       JRNL                                     
REVDAT   2   15-APR-90 1ALC    1       HET                                      
REVDAT   1   15-OCT-89 1ALC    0                                                
JRNL        AUTH   K.R.ACHARYA,D.I.STUART,N.P.WALKER,M.LEWIS,D.C.PHILLIPS       
JRNL        TITL   REFINED STRUCTURE OF BABOON ALPHA-LACTALBUMIN AT 1.7 A       
JRNL        TITL 2 RESOLUTION. COMPARISON WITH C-TYPE LYSOZYME.                 
JRNL        REF    J.MOL.BIOL.                   V. 208    99 1989              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   2769757                                                      
JRNL        DOI    10.1016/0022-2836(89)90091-0                                 
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   S.G.SMITH,M.LEWIS,R.ASCHAFFENBURG,R.E.FENNA,I.A.WILSON,      
REMARK   1  AUTH 2 M.SUNDARALINGAM,D.I.STUART,D.C.PHILLIPS                      
REMARK   1  TITL   CRYSTALLOGRAPHIC ANALYSIS OF THE THREE-DIMENSIONAL STRUCTURE 
REMARK   1  TITL 2 OF BABOON ALPHA-LACTALBUMIN AT LOW RESOLUTION. HOMOLOGY WITH 
REMARK   1  TITL 3 LYSOZYME                                                     
REMARK   1  REF    BIOCHEM.J.                    V. 242   353 1987              
REMARK   1  REFN                   ISSN 0264-6021                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   D.I.STUART,K.R.ACHARYA,N.P.C.WALKER,S.G.SMITH,M.LEWIS,       
REMARK   1  AUTH 2 D.C.PHILLIPS                                                 
REMARK   1  TITL   ALPHA-LACTALBUMIN POSSESSES A NOVEL CALCIUM BINDING LOOP     
REMARK   1  REF    NATURE                        V. 324    84 1986              
REMARK   1  REFN                   ISSN 0028-0836                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   R.ASCHAFFENBURG,R.E.FENNA,D.C.PHILLIPS,S.G.SMITH,D.H.BUSS,   
REMARK   1  AUTH 2 R.JENESS,M.P.THOMPSON                                        
REMARK   1  TITL   CRYSTALLOGRAPHY OF ALPHA-LACTALBUMIN. III. CRYSTALS OF       
REMARK   1  TITL 2 BABOON MILK ALPHA-LACTALBUMIN                                
REMARK   1  REF    J.MOL.BIOL.                   V. 127   135 1979              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : NULL                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 10275                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : 0.2200                 
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 980                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 150                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.015 ; 0.035               
REMARK   3    ANGLE DISTANCE                  (A) : 0.027 ; 0.045               
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.021 ; 0.045               
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : 0.013 ; 0.020               
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.229 ; 0.250               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : 0.111 ; 0.900               
REMARK   3    MULTIPLE TORSION                (A) : 0.523 ; 0.900               
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : 0.348 ; 0.900               
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : 2.700 ; 6.000               
REMARK   3    STAGGERED                 (DEGREES) : 25.200; 25.000              
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND               (A**2) : 31.600; 5.000               
REMARK   3   MAIN-CHAIN ANGLE              (A**2) : 26.500; 6.000               
REMARK   3   SIDE-CHAIN BOND               (A**2) : 42.900; 6.000               
REMARK   3   SIDE-CHAIN ANGLE              (A**2) : 33.200; 8.000               
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1ALC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000170959.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
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 : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 38.26                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.99                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
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        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       17.75000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       34.55000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       17.75000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       34.55000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
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 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: MONOMERIC                         
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 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     GLU A   123                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   CB   MET A    90     O    HOH A   320              1.07            
REMARK 500   CB   LYS A    62     O    HOH A   331              1.37            
REMARK 500   O    HOH A   224     O    HOH A   244              1.40            
REMARK 500   CG   LYS A    62     O    HOH A   331              1.56            
REMARK 500   O    HOH A   290     O    HOH A   291              1.74            
REMARK 500   CD1  LEU A    26     O    HOH A   349              1.80            
REMARK 500   CG   GLU A    43     O    HOH A   317              1.88            
REMARK 500   CG   MET A    90     O    HOH A   320              1.98            
REMARK 500   O    HOH A   214     O    HOH A   253              1.99            
REMARK 500   O    HOH A   215     O    HOH A   280              2.00            
REMARK 500   O    HOH A   203     O    HOH A   271              2.04            
REMARK 500   O    HOH A   319     O    HOH A   320              2.07            
REMARK 500   O    HOH A   258     O    HOH A   291              2.11            
REMARK 500   O    HOH A   201     O    HOH A   202              2.12            
REMARK 500   OD2  ASP A    16     O    HOH A   311              2.13            
REMARK 500   CD1  TYR A    18     O    HOH A   294              2.14            
REMARK 500   OG   SER A     9     O    HOH A   309              2.14            
REMARK 500   CG   LYS A   122     O    HOH A   328              2.17            
REMARK 500   O    HOH A   253     O    HOH A   332              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   285     O    HOH A   285     2765     1.03            
REMARK 500   O    HOH A   307     O    HOH A   307     2765     1.72            
REMARK 500   O    HOH A   339     O    HOH A   339     2655     1.77            
REMARK 500   OD2  ASP A    78     NZ   LYS A    93     4456     1.79            
REMARK 500   NH1  ARG A    70     O    HOH A   272     2655     1.79            
REMARK 500   O    HOH A   233     O    HOH A   322     1455     1.93            
REMARK 500   O    HOH A   275     O    HOH A   275     2655     1.97            
REMARK 500   OE1  GLU A    43     O    HOH A   312     1455     2.07            
REMARK 500   O    HOH A   210     O    HOH A   330     4556     2.11            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLY A  19   CA    GLY A  19   C       0.112                       
REMARK 500    GLU A 121   CG    GLU A 121   CD      0.172                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    LEU A   8   CA  -  CB  -  CG  ANGL. DEV. =  14.2 DEGREES          
REMARK 500    GLY A  19   N   -  CA  -  C   ANGL. DEV. =  18.0 DEGREES          
REMARK 500    GLY A  19   CA  -  C   -  N   ANGL. DEV. = -15.8 DEGREES          
REMARK 500    GLY A  19   O   -  C   -  N   ANGL. DEV. =  10.2 DEGREES          
REMARK 500    ARG A  20   NE  -  CZ  -  NH2 ANGL. DEV. =   3.5 DEGREES          
REMARK 500    ARG A  70   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500    CYS A  77   O   -  C   -  N   ANGL. DEV. =  10.1 DEGREES          
REMARK 500    ASP A  83   CB  -  CG  -  OD2 ANGL. DEV. =   5.8 DEGREES          
REMARK 500    GLU A 113   CA  -  CB  -  CG  ANGL. DEV. =  13.6 DEGREES          
REMARK 500    GLU A 121   CA  -  CB  -  CG  ANGL. DEV. = -18.6 DEGREES          
REMARK 500    GLU A 121   CB  -  CG  -  CD  ANGL. DEV. =  24.2 DEGREES          
REMARK 500    GLU A 121   O   -  C   -  N   ANGL. DEV. =  10.0 DEGREES          
REMARK 500    LYS A 122   N   -  CA  -  CB  ANGL. DEV. =  14.3 DEGREES          
REMARK 500    LYS A 122   CA  -  CB  -  CG  ANGL. DEV. =  17.8 DEGREES          
REMARK 500    LYS A 122   CA  -  C   -  O   ANGL. DEV. = -17.8 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    ASP A  14       27.27    -73.51                                   
REMARK 500    SER A  34       -3.07   -145.92                                   
REMARK 500    ASN A  44      -78.13    -98.34                                   
REMARK 500    ASP A  45      -62.37   -109.29                                   
REMARK 500    LEU A  59      -31.24   -153.34                                   
REMARK 500    ALA A 109      -70.89    -57.49                                   
REMARK 500    CYS A 111       61.14   -116.39                                   
REMARK 500    THR A 112       28.41   -156.84                                   
REMARK 500    GLN A 117      -14.51    -47.03                                   
REMARK 500    GLU A 121        5.99   -166.92                                   
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 GLU A  121     LYS A  122                 -149.04                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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 A 200  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 LYS A  79   O                                                      
REMARK 620 2 ASP A  82   OD1  79.6                                              
REMARK 620 3 ASP A  84   O   164.9  85.7                                        
REMARK 620 4 ASP A  87   OD1 101.7 140.2  87.4                                  
REMARK 620 5 ASP A  88   OD1 100.9 145.5  93.2  74.0                            
REMARK 620 6 HOH A 263   O    91.7  71.5  80.3  68.7 142.3                      
REMARK 620 7 HOH A 277   O    92.6  70.9  85.7 147.5  74.7 140.6                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 200                  
DBREF  1ALC A    1   123  UNP    P12065   LALBA_PAPCY      1    123             
SEQADV 1ALC ASP A   45  UNP  P12065    ASN    45 CONFLICT                       
SEQRES   1 A  123  LYS GLN PHE THR LYS CYS GLU LEU SER GLN ASN LEU TYR          
SEQRES   2 A  123  ASP ILE ASP GLY TYR GLY ARG ILE ALA LEU PRO GLU LEU          
SEQRES   3 A  123  ILE CYS THR MET PHE HIS THR SER GLY TYR ASP THR GLN          
SEQRES   4 A  123  ALA ILE VAL GLU ASN ASP GLU SER THR GLU TYR GLY LEU          
SEQRES   5 A  123  PHE GLN ILE SER ASN ALA LEU TRP CYS LYS SER SER GLN          
SEQRES   6 A  123  SER PRO GLN SER ARG ASN ILE CYS ASP ILE THR CYS ASP          
SEQRES   7 A  123  LYS PHE LEU ASP ASP ASP ILE THR ASP ASP ILE MET CYS          
SEQRES   8 A  123  ALA LYS LYS ILE LEU ASP ILE LYS GLY ILE ASP TYR TRP          
SEQRES   9 A  123  ILE ALA HIS LYS ALA LEU CYS THR GLU LYS LEU GLU GLN          
SEQRES  10 A  123  TRP LEU CYS GLU LYS GLU                                      
HET     CA  A 200       1                                                       
HETNAM      CA CALCIUM ION                                                      
FORMUL   2   CA    CA 2+                                                        
FORMUL   3  HOH   *150(H2 O)                                                    
HELIX    1   A LYS A    5  ASN A   11  1                                   7    
HELIX    2   E LEU A   12  ASP A   16  5                                   5    
HELIX    3   F GLY A   17  ILE A   21  5                                   5    
HELIX    4   B LEU A   23  SER A   34  1                                  12    
HELIX    5   G THR A   76  ASP A   82  5                                   7    
HELIX    6   C THR A   86  LYS A   99  1                                  14    
HELIX    7   H ILE A  101  TRP A  104  5                                   4    
HELIX    8   D ILE A  105  ALA A  109  1                                   5    
HELIX    9   I LEU A  115  LEU A  119  5                                   5    
SHEET    1  S1 2 ALA A  40  GLU A  43  0                                        
SHEET    2  S1 2 SER A  47  TYR A  50 -1                                        
SSBOND   1 CYS A    6    CYS A  120                          1555   1555  2.04  
SSBOND   2 CYS A   28    CYS A  111                          1555   1555  2.09  
SSBOND   3 CYS A   61    CYS A   77                          1555   1555  2.06  
SSBOND   4 CYS A   73    CYS A   91                          1555   1555  2.02  
LINK         O   LYS A  79                CA    CA A 200     1555   1555  2.22  
LINK         OD1 ASP A  82                CA    CA A 200     1555   1555  2.36  
LINK         O   ASP A  84                CA    CA A 200     1555   1555  2.27  
LINK         OD1 ASP A  87                CA    CA A 200     1555   1555  2.32  
LINK         OD1 ASP A  88                CA    CA A 200     1555   1555  2.29  
LINK        CA    CA A 200                 O   HOH A 263     1555   1555  2.60  
LINK        CA    CA A 200                 O   HOH A 277     1555   1555  2.42  
SITE     1 AC1  7 LYS A  79  ASP A  82  ASP A  84  ASP A  87                    
SITE     2 AC1  7 ASP A  88  HOH A 263  HOH A 277                               
CRYST1   35.500   69.100   46.100  90.00  90.00  90.00 P 21 21 2     4          
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      0.028169  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014472  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021692        0.00000