PDB Short entry for 1NM9
HEADER    HYDROLASE                               09-JAN-03   1NM9              
TITLE     CRYSTAL STRUCTURE OF RECOMBINANT HUMAN SALIVARY AMYLASE MUTANT W58A   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALPHA-AMYLASE, SALIVARY;                                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: 1,4-ALPHA-D-GLUCAN GLUCANOHYDROLASE;                        
COMPND   5 EC: 3.2.1.1;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA;                            
SOURCE   6 EXPRESSION_SYSTEM_COMMON: FALL ARMYWORM;                             
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 7108;                                       
SOURCE   8 EXPRESSION_SYSTEM_CELL_LINE: SF9;                                    
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS;                          
SOURCE  10 EXPRESSION_SYSTEM_VECTOR: PBAC2                                      
KEYWDS    C-H... HYDROGEN BOND, TIM BARREL, CATALYSIS, HYDROLASE                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    N.RAMASUBBU,C.RAGUNATH,P.J.MISHRA,L.M.THOMAS                          
REVDAT   7   16-AUG-23 1NM9    1       REMARK                                   
REVDAT   6   27-OCT-21 1NM9    1       SEQADV HETSYN LINK                       
REVDAT   5   29-JUL-20 1NM9    1       COMPND REMARK HETNAM LINK                
REVDAT   5 2                   1       SITE   ATOM                              
REVDAT   4   25-DEC-19 1NM9    1       REMARK SEQADV SEQRES LINK                
REVDAT   3   24-FEB-09 1NM9    1       VERSN                                    
REVDAT   2   15-FEB-05 1NM9    1       JRNL                                     
REVDAT   1   20-JAN-04 1NM9    0                                                
JRNL        AUTH   N.RAMASUBBU,C.RAGUNATH,P.J.MISHRA,L.M.THOMAS,L.KANDRA        
JRNL        TITL   HUMAN SALIVARY ALPHA-AMYLASE TRP58 SITUATED AT SUBSITE -2 IS 
JRNL        TITL 2 CRITICAL FOR ENZYME ACTIVITY.                                
JRNL        REF    EUR.J.BIOCHEM.                V. 271  2517 2004              
JRNL        REFN                   ISSN 0014-2956                               
JRNL        PMID   15182367                                                     
JRNL        DOI    10.1111/J.1432-1033.2004.04182.X                             
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 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) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 42.64                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 29481                          
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) : 0.162                           
REMARK   3   R VALUE            (WORKING SET) : 0.160                           
REMARK   3   FREE R VALUE                     : 0.196                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1564                            
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) : 2.10                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.15                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2098                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1720                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 101                          
REMARK   3   BIN FREE R VALUE                    : 0.2530                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3937                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 68                                      
REMARK   3   SOLVENT ATOMS            : 255                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 23.70                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 23.21                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.01000                                             
REMARK   3    B22 (A**2) : 0.01000                                              
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.200         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.159         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.098         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.599         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.959                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.938                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4124 ; 0.009 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5599 ; 1.171 ; 1.932       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   495 ; 6.112 ; 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):   578 ; 0.084 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3231 ; 0.004 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1977 ; 0.196 ; 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):   299 ; 0.114 ; 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):    43 ; 0.191 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    16 ; 0.135 ; 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):  2452 ; 0.515 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3939 ; 0.985 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1672 ; 1.401 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1660 ; 2.228 ; 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: BULK SOLVENT MODELLING                    
REMARK   4                                                                      
REMARK   4 1NM9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-FEB-03.                  
REMARK 100 THE DEPOSITION ID IS D_1000018001.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-SEP-02                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 9.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : OSMIC MIRRORS                      
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 31104                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 42.600                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY                : 6.000                              
REMARK 200  R MERGE                    (I) : 0.06900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 19.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.15                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.7                               
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: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1JXJ                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 42.85                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: MPD, CALCIUM CHLORIDE, PH 9.0, VAPOR     
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 323K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       25.97300            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       67.25400            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       37.03000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       67.25400            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       25.97300            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       37.03000            
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, B, C                               
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: 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   O    GLY A   308     O    HOH A   859              2.16            
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    TYR A  31      -58.06   -143.92                                   
REMARK 500    MET A 102     -147.23   -100.48                                   
REMARK 500    ALA A 307     -121.66    -93.95                                   
REMARK 500    ASP A 317       62.33   -112.46                                   
REMARK 500    PRO A 345       71.62    -69.57                                   
REMARK 500    SER A 414     -107.14   -130.65                                   
REMARK 500    ASN A 459      100.04      1.53                                   
REMARK 500    PRO A 486       44.56    -83.36                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     GLC C    1                                                       
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 497  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A 100   OD1                                                    
REMARK 620 2 ARG A 158   O   154.8                                              
REMARK 620 3 ASP A 167   OD1  86.2 115.5                                        
REMARK 620 4 ASP A 167   OD2 129.2  75.9  50.7                                  
REMARK 620 5 HIS A 201   O    74.0  80.9 143.4 156.8                            
REMARK 620 6 HOH A 616   O    71.1 124.4  76.0  73.0 123.2                      
REMARK 620 7 HOH A 644   O   103.4  73.4 129.6  89.6  85.4  61.6                
REMARK 620 8 HOH A 678   O    99.2  77.0  72.7  92.5  80.5 147.8 148.9          
REMARK 620 N                    1     2     3     4     5     6     7           
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1SMD   RELATED DB: PDB                                   
REMARK 900 NATIVE HUMAN SALIVARY AMYLASE                                        
REMARK 900 RELATED ID: 1C8Q   RELATED DB: PDB                                   
REMARK 900 RECOMBINANT HUMAN SALIVARY AMYLASE                                   
REMARK 900 RELATED ID: 1MFV   RELATED DB: PDB                                   
REMARK 900 HUMAN SALIVARY AMYLASE COMPELXED WITH ACARBOSE                       
REMARK 900 RELATED ID: 1JXJ   RELATED DB: PDB                                   
REMARK 900 RECOMBINANT SALIVARY AMYLASE MUTANT TRP58->LEU                       
REMARK 900 RELATED ID: 1JXK   RELATED DB: PDB                                   
REMARK 900 RECOMBINANT HUMAN SALIVARY AMYLASE MUTANT LACKING RESIDUES 306 TO    
REMARK 900 310                                                                  
DBREF  1NM9 A    1   496  UNP    P04745   AMYS_HUMAN      16    511             
SEQADV 1NM9 ALA A   58  UNP  P04745    TRP    73 ENGINEERED MUTATION            
SEQRES   1 A  496  PCA TYR SER SER ASN THR GLN GLN GLY ARG THR SER ILE          
SEQRES   2 A  496  VAL HIS LEU PHE GLU TRP ARG TRP VAL ASP ILE ALA LEU          
SEQRES   3 A  496  GLU CYS GLU ARG TYR LEU ALA PRO LYS GLY PHE GLY GLY          
SEQRES   4 A  496  VAL GLN VAL SER PRO PRO ASN GLU ASN VAL ALA ILE HIS          
SEQRES   5 A  496  ASN PRO PHE ARG PRO ALA TRP GLU ARG TYR GLN PRO VAL          
SEQRES   6 A  496  SER TYR LYS LEU CYS THR ARG SER GLY ASN GLU ASP GLU          
SEQRES   7 A  496  PHE ARG ASN MET VAL THR ARG CYS ASN ASN VAL GLY VAL          
SEQRES   8 A  496  ARG ILE TYR VAL ASP ALA VAL ILE ASN HIS MET CYS GLY          
SEQRES   9 A  496  ASN ALA VAL SER ALA GLY THR SER SER THR CYS GLY SER          
SEQRES  10 A  496  TYR PHE ASN PRO GLY SER ARG ASP PHE PRO ALA VAL PRO          
SEQRES  11 A  496  TYR SER GLY TRP ASP PHE ASN ASP GLY LYS CYS LYS THR          
SEQRES  12 A  496  GLY SER GLY ASP ILE GLU ASN TYR ASN ASP ALA THR GLN          
SEQRES  13 A  496  VAL ARG ASP CYS ARG LEU SER GLY LEU LEU ASP LEU ALA          
SEQRES  14 A  496  LEU GLY LYS ASP TYR VAL ARG SER LYS ILE ALA GLU TYR          
SEQRES  15 A  496  MET ASN HIS LEU ILE ASP ILE GLY VAL ALA GLY PHE ARG          
SEQRES  16 A  496  ILE ASP ALA SER LYS HIS MET TRP PRO GLY ASP ILE LYS          
SEQRES  17 A  496  ALA ILE LEU ASP LYS LEU HIS ASN LEU ASN SER ASN TRP          
SEQRES  18 A  496  PHE PRO GLU GLY SER LYS PRO PHE ILE TYR GLN GLU VAL          
SEQRES  19 A  496  ILE ASP LEU GLY GLY GLU PRO ILE LYS SER SER ASP TYR          
SEQRES  20 A  496  PHE GLY ASN GLY ARG VAL THR GLU PHE LYS TYR GLY ALA          
SEQRES  21 A  496  LYS LEU GLY THR VAL ILE ARG LYS TRP ASN GLY GLU LYS          
SEQRES  22 A  496  MET SER TYR LEU LYS ASN TRP GLY GLU GLY TRP GLY PHE          
SEQRES  23 A  496  MET PRO SER ASP ARG ALA LEU VAL PHE VAL ASP ASN HIS          
SEQRES  24 A  496  ASP ASN GLN ARG GLY HIS GLY ALA GLY GLY ALA SER ILE          
SEQRES  25 A  496  LEU THR PHE TRP ASP ALA ARG LEU TYR LYS MET ALA VAL          
SEQRES  26 A  496  GLY PHE MET LEU ALA HIS PRO TYR GLY PHE THR ARG VAL          
SEQRES  27 A  496  MET SER SER TYR ARG TRP PRO ARG TYR PHE GLU ASN GLY          
SEQRES  28 A  496  LYS ASP VAL ASN ASP TRP VAL GLY PRO PRO ASN ASP ASN          
SEQRES  29 A  496  GLY VAL THR LYS GLU VAL THR ILE ASN PRO ASP THR THR          
SEQRES  30 A  496  CYS GLY ASN ASP TRP VAL CYS GLU HIS ARG TRP ARG GLN          
SEQRES  31 A  496  ILE ARG ASN MET VAL ASN PHE ARG ASN VAL VAL ASP GLY          
SEQRES  32 A  496  GLN PRO PHE THR ASN TRP TYR ASP ASN GLY SER ASN GLN          
SEQRES  33 A  496  VAL ALA PHE GLY ARG GLY ASN ARG GLY PHE ILE VAL PHE          
SEQRES  34 A  496  ASN ASN ASP ASP TRP THR PHE SER LEU THR LEU GLN THR          
SEQRES  35 A  496  GLY LEU PRO ALA GLY THR TYR CYS ASP VAL ILE SER GLY          
SEQRES  36 A  496  ASP LYS ILE ASN GLY ASN CYS THR GLY ILE LYS ILE TYR          
SEQRES  37 A  496  VAL SER ASP ASP GLY LYS ALA HIS PHE SER ILE SER ASN          
SEQRES  38 A  496  SER ALA GLU ASP PRO PHE ILE ALA ILE HIS ALA GLU SER          
SEQRES  39 A  496  LYS LEU                                                      
MODRES 1NM9 PCA A    1  GLN  PYROGLUTAMIC ACID                                  
HET    PCA  A   1       8                                                       
HET    GLC  B   1      12                                                       
HET    AGL  B   2      10                                                       
HET    GLC  C   1      11                                                       
HET    AGL  C   2      10                                                       
HET    HMC  A 504      11                                                       
HET    GLC  A 552      12                                                       
HET     CA  A 497       1                                                       
HET     CL  A 498       1                                                       
HETNAM     PCA PYROGLUTAMIC ACID                                                
HETNAM     GLC ALPHA-D-GLUCOPYRANOSE                                            
HETNAM     AGL 4-AMINO-4,6-DIDEOXY-ALPHA-D-GLUCOPYRANOSE                        
HETNAM     HMC 5-HYDROXYMETHYL-CHONDURITOL                                      
HETNAM      CA CALCIUM ION                                                      
HETNAM      CL CHLORIDE ION                                                     
HETSYN     GLC ALPHA-D-GLUCOSE; D-GLUCOSE; GLUCOSE                              
HETSYN     AGL 4,6-DIDEOXY-4-AMINO-ALPHA-D-GLUCOSE; 4-AMINO-4-DEOXY-            
HETSYN   2 AGL  ALPHA-D-QUINOVOPYRANOSE; 4-AMINO-4,6-DIDEOXY-ALPHA-D-           
HETSYN   3 AGL  GLUCOSE; 4-AMINO-4,6-DIDEOXY-D-GLUCOSE; 4-AMINO-4,6-            
HETSYN   4 AGL  DIDEOXY-GLUCOSE                                                 
FORMUL   1  PCA    C5 H7 N O3                                                   
FORMUL   2  GLC    3(C6 H12 O6)                                                 
FORMUL   2  AGL    2(C6 H13 N O4)                                               
FORMUL   4  HMC    C7 H12 O5                                                    
FORMUL   6   CA    CA 2+                                                        
FORMUL   7   CL    CL 1-                                                        
FORMUL   8  HOH   *255(H2 O)                                                    
HELIX    1   1 ARG A   20  TYR A   31  1                                  12    
HELIX    2   2 PRO A   57  GLN A   63  5                                   7    
HELIX    3   3 ASN A   75  VAL A   89  1                                  15    
HELIX    4   4 SER A  132  PHE A  136  5                                   5    
HELIX    5   5 ASP A  153  CYS A  160  1                                   8    
HELIX    6   6 ARG A  161  SER A  163  5                                   3    
HELIX    7   7 LYS A  172  GLY A  190  1                                  19    
HELIX    8   8 ALA A  198  MET A  202  5                                   5    
HELIX    9   9 TRP A  203  ASP A  212  1                                  10    
HELIX   10  10 LYS A  243  PHE A  248  5                                   6    
HELIX   11  11 PHE A  256  ARG A  267  1                                  12    
HELIX   12  12 LYS A  273  TRP A  280  5                                   8    
HELIX   13  13 GLY A  281  GLY A  285  5                                   5    
HELIX   14  14 ASP A  300  GLY A  304  5                                   5    
HELIX   15  15 THR A  314  TRP A  316  5                                   3    
HELIX   16  16 ASP A  317  HIS A  331  1                                  15    
HELIX   17  17 CYS A  384  ARG A  387  5                                   4    
HELIX   18  18 TRP A  388  ASP A  402  1                                  15    
HELIX   19  19 GLU A  493  LYS A  495  5                                   3    
SHEET    1   A 9 SER A  12  LEU A  16  0                                        
SHEET    2   A 9 GLY A  39  VAL A  42  1  O  GLY A  39   N  VAL A  14           
SHEET    3   A 9 ARG A  92  ALA A  97  1  O  ARG A  92   N  VAL A  40           
SHEET    4   A 9 GLY A 193  ILE A 196  1  O  GLY A 193   N  VAL A  95           
SHEET    5   A 9 PHE A 229  GLN A 232  1  O  PHE A 229   N  PHE A 194           
SHEET    6   A 9 ARG A 252  THR A 254  1  N  ARG A 252   O  ILE A 230           
SHEET    7   A 9 ALA A 292  VAL A 294  1  N  LEU A 293   O  VAL A 253           
SHEET    8   A 9 PHE A 335  SER A 340  1  O  PHE A 335   N  VAL A 294           
SHEET    9   A 9 SER A  12  LEU A  16  1  O  ILE A  13   N  VAL A 338           
SHEET    1   B 2 HIS A 101  GLY A 104  0                                        
SHEET    2   B 2 LEU A 165  ASP A 167 -1  N  LEU A 166   O  CYS A 103           
SHEET    1   C 2 PHE A 348  GLU A 349  0                                        
SHEET    2   C 2 LYS A 352  ASP A 353 -1  O  LYS A 352   N  GLU A 349           
SHEET    1   D 2 ASN A 362  ASP A 363  0                                        
SHEET    2   D 2 VAL A 366  THR A 367 -1  O  VAL A 366   N  ASP A 363           
SHEET    1   E 4 PHE A 406  ASP A 411  0                                        
SHEET    2   E 4 GLN A 416  ARG A 421 -1  O  ALA A 418   N  TYR A 410           
SHEET    3   E 4 GLY A 425  ASN A 430 -1  O  GLY A 425   N  ARG A 421           
SHEET    4   E 4 PHE A 487  HIS A 491 -1  O  ILE A 488   N  VAL A 428           
SHEET    1   F 2 PHE A 436  GLN A 441  0                                        
SHEET    2   F 2 LYS A 474  ILE A 479 -1  O  ALA A 475   N  LEU A 440           
SHEET    1   G 2 GLY A 447  CYS A 450  0                                        
SHEET    2   G 2 LYS A 466  VAL A 469 -1  N  ILE A 467   O  TYR A 449           
SHEET    1   H 2 LYS A 457  ILE A 458  0                                        
SHEET    2   H 2 ASN A 461  CYS A 462 -1  O  ASN A 461   N  ILE A 458           
SSBOND   1 CYS A   28    CYS A   86                          1555   1555  2.04  
SSBOND   2 CYS A   70    CYS A  115                          1555   1555  2.05  
SSBOND   3 CYS A  141    CYS A  160                          1555   1555  2.05  
SSBOND   4 CYS A  378    CYS A  384                          1555   1555  2.02  
SSBOND   5 CYS A  450    CYS A  462                          1555   1555  2.03  
LINK         C   PCA A   1                 N   TYR A   2     1555   1555  1.33  
LINK         C1  HMC A 504                 N4  AGL B   2     1555   1555  1.28  
LINK         O4  GLC B   1                 C1  AGL B   2     1555   1555  1.34  
LINK         O4  GLC C   1                 C1  AGL C   2     1555   1555  1.34  
LINK         OD1 ASN A 100                CA    CA A 497     1555   1555  2.47  
LINK         O   ARG A 158                CA    CA A 497     1555   1555  2.38  
LINK         OD1 ASP A 167                CA    CA A 497     1555   1555  2.44  
LINK         OD2 ASP A 167                CA    CA A 497     1555   1555  2.59  
LINK         O   HIS A 201                CA    CA A 497     1555   1555  2.40  
LINK        CA    CA A 497                 O   HOH A 616     1555   1555  2.53  
LINK        CA    CA A 497                 O   HOH A 644     1555   1555  2.58  
LINK        CA    CA A 497                 O   HOH A 678     1555   1555  2.47  
CISPEP   1 ASN A   53    PRO A   54          0        -4.46                     
CISPEP   2 VAL A  129    PRO A  130          0        -5.64                     
CRYST1   51.946   74.060  134.508  90.00  90.00  90.00 P 21 21 21    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      0.019251  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.013503  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007435        0.00000                         
HETATM    1  N   PCA A   1      12.067  57.953   0.592  1.00 22.96           N  
HETATM    2  CA  PCA A   1      11.634  57.439   1.932  1.00 22.84           C  
HETATM    3  CB  PCA A   1      11.909  55.936   2.007  1.00 22.68           C  
HETATM    4  CG  PCA A   1      13.038  55.677   1.018  1.00 22.64           C  
HETATM    5  CD  PCA A   1      12.969  56.900   0.128  1.00 23.26           C  
HETATM    6  OE  PCA A   1      13.619  56.979  -0.914  1.00 24.15           O  
HETATM    7  C   PCA A   1      12.332  58.160   3.083  1.00 22.62           C  
HETATM    8  O   PCA A   1      11.937  58.000   4.233  1.00 22.32           O