HEADER    HYDROLASE                               28-APR-03   1UD6              
TITLE     CRYSTAL STRUCTURE OF AMYK38 WITH POTASSIUM ION                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: AMYLASE;                                                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: RESIDUES 1-480;                                            
COMPND   5 SYNONYM: ALPHA-AMYLASE;                                              
COMPND   6 EC: 3.2.1.1;                                                         
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BACILLUS SP. KSM-K38;                           
SOURCE   3 ORGANISM_TAXID: 129736;                                              
SOURCE   4 EXPRESSION_SYSTEM: BACILLUS SUBTILIS;                                
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 1423;                                       
SOURCE   6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   7 EXPRESSION_SYSTEM_PLASMID: PHSP64                                    
KEYWDS    CALCIUM-FREE, ALKALINE, ALPHA-AMYLASE, HYDROLASE                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.NONAKA,M.FUJIHASHI,A.KITA,H.HAGIHARA,K.OZAKI,S.ITO,K.MIKI           
REVDAT   4   03-APR-24 1UD6    1       REMARK                                   
REVDAT   3   27-DEC-23 1UD6    1       REMARK LINK                              
REVDAT   2   24-FEB-09 1UD6    1       VERSN                                    
REVDAT   1   22-JUL-03 1UD6    0                                                
JRNL        AUTH   T.NONAKA,M.FUJIHASHI,A.KITA,H.HAGIHARA,K.OZAKI,S.ITO,K.MIKI  
JRNL        TITL   CRYSTAL STRUCTURE OF CALCIUM-FREE ALPHA-AMYLASE FROM         
JRNL        TITL 2 BACILLUS SP. STRAIN KSM-K38 (AMYK38) AND ITS SODIUM ION      
JRNL        TITL 3 BINDING SITES                                                
JRNL        REF    J.BIOL.CHEM.                  V. 278 24818 2003              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   12719434                                                     
JRNL        DOI    10.1074/JBC.M212763200                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 44.18                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 2493117.020                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 26730                          
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 SET) : 0.212                           
REMARK   3   FREE R VALUE                     : 0.250                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1332                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.007                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.50                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.66                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 96.80                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 4088                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2550                       
REMARK   3   BIN FREE R VALUE                    : 0.3010                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.20                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 223                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.020                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3908                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 4                                       
REMARK   3   SOLVENT ATOMS            : 197                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 27.90                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 23.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : 0.00000                                              
REMARK   3    B33 (A**2) : 0.00000                                              
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.30                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.29                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.37                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.36                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.006                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.20                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.700                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ISOTROPIC                                 
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.210 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.950 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 1.770 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.500 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.38                                                 
REMARK   3   BSOL        : 34.34                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  4  : CISPEP.PARAM                                   
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1UD6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 06-MAY-03.                  
REMARK 100 THE DEPOSITION ID IS D_1000005695.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.8                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SPRING-8                           
REMARK 200  BEAMLINE                       : BL44B2                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0000                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 27104                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 100.000                            
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : 15.60                              
REMARK 200  R MERGE                    (I) : 0.09900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 30.8000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.59                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.27200                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 12.90                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: MODEL OF NATIVE AMYK38 STRUCTURE                     
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 65.02                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.52                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, POTASSIUM ACETATE, GLYCEROL,   
REMARK 280  MES-KOH, TRIS-HCL, PH 6.8, SOAKING OF NATIVE CRYSTALS,              
REMARK 280  TEMPERATURE 293K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 2 3                            
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,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   Z,X,Y                                                   
REMARK 290       6555   Z,-X,-Y                                                 
REMARK 290       7555   -Z,-X,Y                                                 
REMARK 290       8555   -Z,X,-Y                                                 
REMARK 290       9555   Y,Z,X                                                   
REMARK 290      10555   -Y,Z,-X                                                 
REMARK 290      11555   Y,-Z,-X                                                 
REMARK 290      12555   -Y,-Z,X                                                 
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        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY2   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   6  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY2   6 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY2   7 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY2   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   9  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   9  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY3   9  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  10  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  10  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY3  10 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY3  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  12  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY3  12  1.000000  0.000000  0.000000        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 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    TYR A  11      160.60    175.60                                   
REMARK 500    TYR A  59      -62.96    -91.08                                   
REMARK 500    LEU A  64       45.13    -99.16                                   
REMARK 500    ASN A 124       82.01   -168.34                                   
REMARK 500    TYR A 150      -33.10     66.09                                   
REMARK 500    GLU A 336      129.08    -39.34                                   
REMARK 500    SER A 337       53.11   -171.74                                   
REMARK 500    PHE A 400       59.57    -92.02                                   
REMARK 500    ASN A 418       17.27     39.65                                   
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                               K A1004   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A  68   O                                                      
REMARK 620 2 SER A 144   O    85.0                                              
REMARK 620 3 ASN A 452   OD1  99.7  84.3                                        
REMARK 620 4 HOH A2009   O   176.0  91.8  77.5                                  
REMARK 620 5 HOH A2136   O   102.0 101.3 158.0  81.0                            
REMARK 620 6 HOH A2165   O    97.9 160.2  75.9  84.3  97.3                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A1001   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A 104   OD1                                                    
REMARK 620 2 ASP A 194   OD1 167.1                                              
REMARK 620 3 ASP A 194   O   107.1  85.2                                        
REMARK 620 4 ASN A 200   ND2 123.3  62.0  79.4                                  
REMARK 620 5 ASN A 200   OD1  83.5 103.8  76.4  42.2                            
REMARK 620 6 HIS A 235   O    88.3  86.2  97.0 148.1 167.3                      
REMARK 620 7 HOH A2014   O    75.1  97.6 143.6  70.4  67.7 119.4                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A1003   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A 289   OD1                                                    
REMARK 620 2 ASN A 289   O    71.4                                              
REMARK 620 3 VAL A 324   O    78.8 105.0                                        
REMARK 620 4 ASP A 325   OD1 103.4 174.6  72.0                                  
REMARK 620 5 SER A 337   O   122.5 105.8 147.0  78.2                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A1002   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY A 300   O                                                      
REMARK 620 2 TYR A 302   O    91.9                                              
REMARK 620 3 TRP A 403   O   174.8  82.9                                        
REMARK 620 4 ASP A 404   OD1  99.7 168.4  85.5                                  
REMARK 620 5 ASN A 427   ND2  84.9  56.1  91.7 125.7                            
REMARK 620 6 ASN A 427   OD1 103.7  88.8  75.8  89.5  38.2                      
REMARK 620 7 HOH A2110   O    84.1  85.4  95.9  94.6 139.4 170.4                
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 K A 1001                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 1002                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 1003                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 1004                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1UD2   RELATED DB: PDB                                   
REMARK 900 THE STRUCTURE WHICH SODIUM IONS, INSTEAD OF CALCIUM IONS, ARE USED   
REMARK 900 TO RETAIN THE STRUCTURE AND FUNCTION OF AMYK38.                      
REMARK 900 RELATED ID: 1UD3   RELATED DB: PDB                                   
REMARK 900 THE STRUCTURE OF THE N289H MUTANT OF AMYK38.                         
REMARK 900 RELATED ID: 1UD4   RELATED DB: PDB                                   
REMARK 900 THE STRUCTURE OF THE CALCIUM-FREE ALPHA-AMYLASE, AMYK38, FROM THE    
REMARK 900 CRYSTAL GROWN IN THE CACL2 CONTAINING SOLUTION.                      
REMARK 900 RELATED ID: 1UD5   RELATED DB: PDB                                   
REMARK 900 THIS STRUCTURE WAS DETERMINED FROM THE DATASET OF THE CRYSTAL        
REMARK 900 SOAKED INTO RB+ ION CONTAINING SOLUTION.                             
REMARK 900 RELATED ID: 1UD8   RELATED DB: PDB                                   
REMARK 900 THIS STRUCTURE WAS DETERMINED FROM THE DATASET OF THE CRYSTAL        
REMARK 900 SOAKED INTO LI+ ION CONTAINING SOLUTION.                             
DBREF  1UD6 A    1   480  UNP    Q93I48   Q93I48_9BACI    22    501             
SEQRES   1 A  480  ASP GLY LEU ASN GLY THR MET MET GLN TYR TYR GLU TRP          
SEQRES   2 A  480  HIS LEU GLU ASN ASP GLY GLN HIS TRP ASN ARG LEU HIS          
SEQRES   3 A  480  ASP ASP ALA ALA ALA LEU SER ASP ALA GLY ILE THR ALA          
SEQRES   4 A  480  ILE TRP ILE PRO PRO ALA TYR LYS GLY ASN SER GLN ALA          
SEQRES   5 A  480  ASP VAL GLY TYR GLY ALA TYR ASP LEU TYR ASP LEU GLY          
SEQRES   6 A  480  GLU PHE ASN GLN LYS GLY THR VAL ARG THR LYS TYR GLY          
SEQRES   7 A  480  THR LYS ALA GLN LEU GLU ARG ALA ILE GLY SER LEU LYS          
SEQRES   8 A  480  SER ASN ASP ILE ASN VAL TYR GLY ASP VAL VAL MET ASN          
SEQRES   9 A  480  HIS LYS MET GLY ALA ASP PHE THR GLU ALA VAL GLN ALA          
SEQRES  10 A  480  VAL GLN VAL ASN PRO THR ASN ARG TRP GLN ASP ILE SER          
SEQRES  11 A  480  GLY ALA TYR THR ILE ASP ALA TRP THR GLY PHE ASP PHE          
SEQRES  12 A  480  SER GLY ARG ASN ASN ALA TYR SER ASP PHE LYS TRP ARG          
SEQRES  13 A  480  TRP PHE HIS PHE ASN GLY VAL ASP TRP ASP GLN ARG TYR          
SEQRES  14 A  480  GLN GLU ASN HIS ILE PHE ARG PHE ALA ASN THR ASN TRP          
SEQRES  15 A  480  ASN TRP ARG VAL ASP GLU GLU ASN GLY ASN TYR ASP TYR          
SEQRES  16 A  480  LEU LEU GLY SER ASN ILE ASP PHE SER HIS PRO GLU VAL          
SEQRES  17 A  480  GLN ASP GLU LEU LYS ASP TRP GLY SER TRP PHE THR ASP          
SEQRES  18 A  480  GLU LEU ASP LEU ASP GLY TYR ARG LEU ASP ALA ILE LYS          
SEQRES  19 A  480  HIS ILE PRO PHE TRP TYR THR SER ASP TRP VAL ARG HIS          
SEQRES  20 A  480  GLN ARG ASN GLU ALA ASP GLN ASP LEU PHE VAL VAL GLY          
SEQRES  21 A  480  GLU TYR TRP LYS ASP ASP VAL GLY ALA LEU GLU PHE TYR          
SEQRES  22 A  480  LEU ASP GLU MET ASN TRP GLU MET SER LEU PHE ASP VAL          
SEQRES  23 A  480  PRO LEU ASN TYR ASN PHE TYR ARG ALA SER GLN GLN GLY          
SEQRES  24 A  480  GLY SER TYR ASP MET ARG ASN ILE LEU ARG GLY SER LEU          
SEQRES  25 A  480  VAL GLU ALA HIS PRO MET HIS ALA VAL THR PHE VAL ASP          
SEQRES  26 A  480  ASN HIS ASP THR GLN PRO GLY GLU SER LEU GLU SER TRP          
SEQRES  27 A  480  VAL ALA ASP TRP PHE LYS PRO LEU ALA TYR ALA THR ILE          
SEQRES  28 A  480  LEU THR ARG GLU GLY GLY TYR PRO ASN VAL PHE TYR GLY          
SEQRES  29 A  480  ASP TYR TYR GLY ILE PRO ASN ASP ASN ILE SER ALA LYS          
SEQRES  30 A  480  LYS ASP MET ILE ASP GLU LEU LEU ASP ALA ARG GLN ASN          
SEQRES  31 A  480  TYR ALA TYR GLY THR GLN HIS ASP TYR PHE ASP HIS TRP          
SEQRES  32 A  480  ASP VAL VAL GLY TRP THR ARG GLU GLY SER SER SER ARG          
SEQRES  33 A  480  PRO ASN SER GLY LEU ALA THR ILE MET SER ASN GLY PRO          
SEQRES  34 A  480  GLY GLY SER LYS TRP MET TYR VAL GLY ARG GLN ASN ALA          
SEQRES  35 A  480  GLY GLN THR TRP THR ASP LEU THR GLY ASN ASN GLY ALA          
SEQRES  36 A  480  SER VAL THR ILE ASN GLY ASP GLY TRP GLY GLU PHE PHE          
SEQRES  37 A  480  THR ASN GLY GLY SER VAL SER VAL TYR VAL ASN GLN              
HET      K  A1001       1                                                       
HET      K  A1002       1                                                       
HET      K  A1003       1                                                       
HET      K  A1004       1                                                       
HETNAM       K POTASSIUM ION                                                    
FORMUL   2    K    4(K 1+)                                                      
FORMUL   6  HOH   *197(H2 O)                                                    
HELIX    1   1 GLN A   20  GLY A   36  1                                  17    
HELIX    2   2 THR A   79  ASN A   93  1                                  15    
HELIX    3   3 ARG A  156  PHE A  158  5                                   3    
HELIX    4   4 HIS A  205  ASP A  224  1                                  20    
HELIX    5   5 PRO A  237  ALA A  252  1                                  16    
HELIX    6   6 ASP A  266  MET A  277  1                                  12    
HELIX    7   7 ASP A  285  GLY A  299  1                                  15    
HELIX    8   8 GLY A  300  TYR A  302  5                                   3    
HELIX    9   9 ASP A  303  ILE A  307  5                                   5    
HELIX   10  10 SER A  311  HIS A  316  1                                   6    
HELIX   11  11 PHE A  343  THR A  353  1                                  11    
HELIX   12  12 TYR A  363  GLY A  368  1                                   6    
HELIX   13  13 ILE A  369  ASN A  373  5                                   5    
HELIX   14  14 LYS A  377  TYR A  391  1                                  15    
HELIX   15  15 GLY A  438  ALA A  442  5                                   5    
SHEET    1   A 9 MET A   7  GLN A   9  0                                        
SHEET    2   A 9 ALA A  39  ILE A  42  1  O  TRP A  41   N  MET A   8           
SHEET    3   A 9 ASN A  96  VAL A 101  1  O  ASN A  96   N  ILE A  40           
SHEET    4   A 9 GLY A 227  LEU A 230  1  O  ARG A 229   N  VAL A 101           
SHEET    5   A 9 PHE A 257  GLY A 260  1  O  VAL A 259   N  LEU A 230           
SHEET    6   A 9 SER A 282  PHE A 284  1  O  SER A 282   N  GLY A 260           
SHEET    7   A 9 ALA A 320  THR A 322  1  O  VAL A 321   N  LEU A 283           
SHEET    8   A 9 TYR A 358  PHE A 362  1  O  ASN A 360   N  THR A 322           
SHEET    9   A 9 MET A   7  GLN A   9  1  N  MET A   7   O  VAL A 361           
SHEET    1   B 2 LYS A  47  GLY A  48  0                                        
SHEET    2   B 2 ALA A  58  ASP A  60 -1  O  TYR A  59   N  LYS A  47           
SHEET    1   C 3 TYR A 133  GLY A 140  0                                        
SHEET    2   C 3 PHE A 111  ASN A 121 -1  N  ALA A 117   O  TYR A 133           
SHEET    3   C 3 ASN A 124  ASP A 128 -1  O  GLN A 127   N  ASN A 121           
SHEET    1   D 6 TYR A 133  GLY A 140  0                                        
SHEET    2   D 6 PHE A 111  ASN A 121 -1  N  ALA A 117   O  TYR A 133           
SHEET    3   D 6 GLU A 171  PHE A 177 -1  O  ARG A 176   N  VAL A 118           
SHEET    4   D 6 PHE A 160  ASP A 166 -1  N  VAL A 163   O  PHE A 175           
SHEET    5   D 6 SER A 199  ILE A 201 -1  O  ASN A 200   N  GLY A 162           
SHEET    6   D 6 HIS A 105  LYS A 106 -1  N  LYS A 106   O  SER A 199           
SHEET    1   E 6 GLN A 396  TYR A 399  0                                        
SHEET    2   E 6 VAL A 405  ARG A 410 -1  O  GLY A 407   N  TYR A 399           
SHEET    3   E 6 LEU A 421  SER A 426 -1  O  THR A 423   N  TRP A 408           
SHEET    4   E 6 SER A 473  VAL A 478 -1  O  SER A 475   N  ILE A 424           
SHEET    5   E 6 THR A 445  ASP A 448 -1  N  THR A 447   O  VAL A 478           
SHEET    6   E 6 SER A 456  THR A 458 -1  O  VAL A 457   N  TRP A 446           
SHEET    1   F 2 GLY A 431  TYR A 436  0                                        
SHEET    2   F 2 TRP A 464  THR A 469 -1  O  THR A 469   N  GLY A 431           
LINK         O   ASN A  68                 K     K A1004    10656   1555  2.85  
LINK         OD1 ASN A 104                 K     K A1001     1555   1555  2.69  
LINK         O   SER A 144                 K     K A1004    10656   1555  2.88  
LINK         OD1 ASP A 194                 K     K A1001     1555   1555  2.53  
LINK         O   ASP A 194                 K     K A1001     1555   1555  2.35  
LINK         ND2 ASN A 200                 K     K A1001     1555   1555  3.32  
LINK         OD1 ASN A 200                 K     K A1001     1555   1555  2.75  
LINK         O   HIS A 235                 K     K A1001     1555   1555  2.40  
LINK         OD1 ASN A 289                 K     K A1003     1555   1555  2.75  
LINK         O   ASN A 289                 K     K A1003     1555   1555  3.39  
LINK         O   GLY A 300                 K     K A1002     1555   1555  2.45  
LINK         O   TYR A 302                 K     K A1002     1555   1555  2.57  
LINK         O   VAL A 324                 K     K A1003     1555   1555  2.56  
LINK         OD1 ASP A 325                 K     K A1003     1555   1555  2.58  
LINK         O   SER A 337                 K     K A1003     1555   1555  2.53  
LINK         O   TRP A 403                 K     K A1002     1555   1555  2.85  
LINK         OD1 ASP A 404                 K     K A1002     1555   1555  2.62  
LINK         ND2 ASN A 427                 K     K A1002     1555   1555  3.62  
LINK         OD1 ASN A 427                 K     K A1002     1555   1555  3.09  
LINK         OD1 ASN A 452                 K     K A1004     1555   1555  2.60  
LINK         K     K A1001                 O   HOH A2014     1555   1555  2.54  
LINK         K     K A1002                 O   HOH A2110     1555   1555  2.63  
LINK         K     K A1004                 O   HOH A2009     1555   1555  2.66  
LINK         K     K A1004                 O   HOH A2136     1555  10656  2.64  
LINK         K     K A1004                 O   HOH A2165     1555   1555  3.45  
CISPEP   1 TRP A  184    ARG A  185          0         0.53                     
SITE     1 AC1  5 ASN A 104  ASP A 194  ASN A 200  HIS A 235                    
SITE     2 AC1  5 HOH A2014                                                     
SITE     1 AC2  6 GLY A 300  TYR A 302  TRP A 403  ASP A 404                    
SITE     2 AC2  6 ASN A 427  HOH A2110                                          
SITE     1 AC3  5 ASN A 289  VAL A 324  ASP A 325  SER A 337                    
SITE     2 AC3  5 VAL A 339                                                     
SITE     1 AC4  5 ASN A  68  SER A 144  ASN A 452  HOH A2009                    
SITE     2 AC4  5 HOH A2136                                                     
CRYST1  132.525  132.525  132.525  90.00  90.00  90.00 P 2 3        12          
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      0.007546  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007546  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007546        0.00000