HEADER    HYDROLASE                               25-JUL-07   2QPS              
TITLE     "SUGAR TONGS" MUTANT Y380A IN COMPLEX WITH ACARBOSE                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALPHA-AMYLASE TYPE A ISOZYME;                              
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: 1,4-ALPHA-D- GLUCAN GLUCANOHYDROLASE, AMY1, LOW PI ALPHA-   
COMPND   5 AMYLASE;                                                             
COMPND   6 EC: 3.2.1.1;                                                         
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HORDEUM VULGARE;                                
SOURCE   3 ORGANISM_TAXID: 4513;                                                
SOURCE   4 GENE: AMY1.1;                                                        
SOURCE   5 EXPRESSION_SYSTEM: PICHIA PASTORIS;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 4922                                        
KEYWDS    BETA ALPHA 8 BARREL, SUGAR TONGS COMPLEX, CALCIUM, CARBOHYDRATE       
KEYWDS   2 METABOLISM, GERMINATION, GLYCOSIDASE, HYDROLASE, METAL-BINDING,      
KEYWDS   3 SECRETED                                                             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    N.AGHAJARI,M.H.JENSEN,S.TRANIER,R.HASER                               
REVDAT   5   30-AUG-23 2QPS    1       REMARK                                   
REVDAT   4   20-OCT-21 2QPS    1       REMARK SEQADV LINK                       
REVDAT   3   16-NOV-11 2QPS    1       VERSN  HETATM                            
REVDAT   2   24-FEB-09 2QPS    1       VERSN                                    
REVDAT   1   12-FEB-08 2QPS    0                                                
JRNL        AUTH   S.BOZONNET,M.T.JENSEN,M.M.NIELSEN,N.AGHAJARI,M.H.JENSEN,     
JRNL        AUTH 2 B.KRAMHOFT,M.WILLEMOES,S.TRANIER,R.HASER,B.SVENSSON          
JRNL        TITL   THE 'PAIR OF SUGAR TONGS' SITE ON THE NON-CATALYTIC DOMAIN C 
JRNL        TITL 2 OF BARLEY ALPHA-AMYLASE PARTICIPATES IN SUBSTRATE BINDING    
JRNL        TITL 3 AND ACTIVITY                                                 
JRNL        REF    FEBS J.                       V. 274  5055 2007              
JRNL        REFN                   ISSN 1742-464X                               
JRNL        PMID   17803687                                                     
JRNL        DOI    10.1111/J.1742-4658.2007.06024.X                             
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
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) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 29.48                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1853229.150                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 20584                          
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) : 0.240                           
REMARK   3   FREE R VALUE                     : 0.305                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 987                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.010                           
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) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.34                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.70                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 3160                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3930                       
REMARK   3   BIN FREE R VALUE                    : 0.3940                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 4.70                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 157                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.031                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3133                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 3                                       
REMARK   3   SOLVENT ATOMS            : 169                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 22.70                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 43.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 27.30000                                             
REMARK   3    B22 (A**2) : -17.73000                                            
REMARK   3    B33 (A**2) : -9.58000                                             
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) : 0.34                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.48                            
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) : 0.47                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.59                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.00                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.810                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.280 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.070 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 1.790 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.540 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.34                                                 
REMARK   3   BSOL        : 47.09                                                
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  : 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                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2QPS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-JUL-07.                  
REMARK 100 THE DEPOSITION ID IS D_1000043902.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 12-DEC-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6                                  
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-4                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9330                             
REMARK 200  MONOCHROMATOR                  : MONOCHROMATOR                      
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 20591                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.9                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.47000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 24.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.40                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.21900                            
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: CNS                                                   
REMARK 200 STARTING MODEL: PDB ENTRY 1HT6                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 44.78                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.23                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 17% PEG 8000, PH 6, VAPOR DIFFUSION,     
REMARK 280  HANGING DROP, TEMPERATURE 290K                                      
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       44.19500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       36.21000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       44.19500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       36.21000            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A1037  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A1488  LIES ON A SPECIAL POSITION.                          
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     ASN A   405                                                      
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    GLN A   2      114.35   -165.69                                   
REMARK 500    CYS A 106       10.18   -150.79                                   
REMARK 500    THR A 112     -165.60   -116.29                                   
REMARK 500    ASP A 114     -168.19    -56.21                                   
REMARK 500    LEU A 117       16.79     52.50                                   
REMARK 500    HIS A 152        0.90    -68.24                                   
REMARK 500    SER A 198       79.94     33.22                                   
REMARK 500    VAL A 258        5.96    -69.68                                   
REMARK 500    GLU A 259       43.72    -98.41                                   
REMARK 500    GLU A 261       50.42   -142.37                                   
REMARK 500    LEU A 262        2.69    -69.25                                   
REMARK 500    TRP A 279       71.93   -153.60                                   
REMARK 500    SER A 294     -156.41     48.17                                   
REMARK 500    ALA A 297       68.31     28.30                                   
REMARK 500    TRP A 299       55.21   -162.54                                   
REMARK 500    PRO A 302      101.76    -47.79                                   
REMARK 500    LYS A 305       39.36   -140.41                                   
REMARK 500    TYR A 312      -74.20    -60.10                                   
REMARK 500    ASP A 369       19.48     45.85                                   
REMARK 500    VAL A 382       13.42   -150.27                                   
REMARK 500    PRO A 387      176.09    -52.81                                   
REMARK 500    SER A 393     -128.21   -120.51                                   
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 500  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A  92   OD1                                                    
REMARK 620 2 ASP A 139   OD1 139.2                                              
REMARK 620 3 ASP A 139   OD2 165.1  49.8                                        
REMARK 620 4 ALA A 142   O    95.7 112.6  88.3                                  
REMARK 620 5 ASP A 149   OD2  92.6 117.7  73.3  85.2                            
REMARK 620 6 GLY A 184   O    71.7  86.3 123.2  76.7 154.4                      
REMARK 620 7 HOH A 630   O    85.4  69.1  89.4 174.8  89.7 108.5                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 501  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 109   OE1                                                    
REMARK 620 2 GLU A 109   OE2  53.5                                              
REMARK 620 3 ASP A 114   O   145.7 157.8                                        
REMARK 620 4 ASP A 118   OD2  75.5 103.6  94.6                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 502  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 128   OD2                                                    
REMARK 620 2 ASP A 143   OD1  90.4                                              
REMARK 620 3 PHE A 144   O   169.2  94.1                                        
REMARK 620 4 ALA A 147   O    94.7 174.0  81.5                                  
REMARK 620 5 ASP A 149   OD1  97.2  77.5  93.3  98.7                            
REMARK 620 6 HOH A 788   O    82.7 105.9  86.6  77.9 176.6                      
REMARK 620 N                    1     2     3     4     5                       
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 500                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 501                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 502                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1HT6   RELATED DB: PDB                                   
REMARK 900 NATIVE STRUCTURE OF BARLEY ALPHA-AMYLASE 1                           
REMARK 900 RELATED ID: 1P6W   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF BARLEY ALPHA-AMYLASE 1 IN COMPLEX WITH THIO-DP4         
REMARK 900 RELATED ID: 1RPK   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF BARLEY ALPHA-AMYLASE 1 IN COMPLEX WITH ACARBOSE         
REMARK 900 RELATED ID: 1RP8   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF BARLEY ALPHA-AMYLASE 1 NUCLEOPHILIC MUTANT D180A IN     
REMARK 900 COMPLEX WITH MALTOHEPTAOSE                                           
REMARK 900 RELATED ID: 1RP9   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF BARLEY ALPHA-AMYLASE 1 NUCLEOPHILIC MUTANT D180A IN     
REMARK 900 COMPLEX WITH ACARBOSE                                                
REMARK 900 RELATED ID: 1AMY   RELATED DB: PDB                                   
REMARK 900 NATIVE STRUCTURE OF BARLEY ALPHA-AMYLASE 2                           
REMARK 900 RELATED ID: 2QPU   RELATED DB: PDB                                   
REMARK 900 "SUGAR TONGS" MUTANT S378P IN COMPLEX WITH ACARBOSE                  
DBREF  2QPS A    1   405  UNP    P00693   AMY1_HORVU      25    429             
SEQADV 2QPS VAL A  284  UNP  P00693    ALA   308 ENGINEERED MUTATION            
SEQADV 2QPS ALA A  380  UNP  P00693    TYR   404 ENGINEERED MUTATION            
SEQRES   1 A  405  HIS GLN VAL LEU PHE GLN GLY PHE ASN TRP GLU SER TRP          
SEQRES   2 A  405  LYS GLN SER GLY GLY TRP TYR ASN MET MET MET GLY LYS          
SEQRES   3 A  405  VAL ASP ASP ILE ALA ALA ALA GLY VAL THR HIS VAL TRP          
SEQRES   4 A  405  LEU PRO PRO PRO SER HIS SER VAL SER ASN GLU GLY TYR          
SEQRES   5 A  405  MET PRO GLY ARG LEU TYR ASP ILE ASP ALA SER LYS TYR          
SEQRES   6 A  405  GLY ASN ALA ALA GLU LEU LYS SER LEU ILE GLY ALA LEU          
SEQRES   7 A  405  HIS GLY LYS GLY VAL GLN ALA ILE ALA ASP ILE VAL ILE          
SEQRES   8 A  405  ASN HIS ARG CYS ALA ASP TYR LYS ASP SER ARG GLY ILE          
SEQRES   9 A  405  TYR CYS ILE PHE GLU GLY GLY THR SER ASP GLY ARG LEU          
SEQRES  10 A  405  ASP TRP GLY PRO HIS MET ILE CYS ARG ASP ASP THR LYS          
SEQRES  11 A  405  TYR SER ASP GLY THR ALA ASN LEU ASP THR GLY ALA ASP          
SEQRES  12 A  405  PHE ALA ALA ALA PRO ASP ILE ASP HIS LEU ASN ASP ARG          
SEQRES  13 A  405  VAL GLN ARG GLU LEU LYS GLU TRP LEU LEU TRP LEU LYS          
SEQRES  14 A  405  SER ASP LEU GLY PHE ASP ALA TRP ARG LEU ASP PHE ALA          
SEQRES  15 A  405  ARG GLY TYR SER PRO GLU MET ALA LYS VAL TYR ILE ASP          
SEQRES  16 A  405  GLY THR SER PRO SER LEU ALA VAL ALA GLU VAL TRP ASP          
SEQRES  17 A  405  ASN MET ALA THR GLY GLY ASP GLY LYS PRO ASN TYR ASP          
SEQRES  18 A  405  GLN ASP ALA HIS ARG GLN ASN LEU VAL ASN TRP VAL ASP          
SEQRES  19 A  405  LYS VAL GLY GLY ALA ALA SER ALA GLY MET VAL PHE ASP          
SEQRES  20 A  405  PHE THR THR LYS GLY ILE LEU ASN ALA ALA VAL GLU GLY          
SEQRES  21 A  405  GLU LEU TRP ARG LEU ILE ASP PRO GLN GLY LYS ALA PRO          
SEQRES  22 A  405  GLY VAL MET GLY TRP TRP PRO ALA LYS ALA VAL THR PHE          
SEQRES  23 A  405  VAL ASP ASN HIS ASP THR GLY SER THR GLN ALA MET TRP          
SEQRES  24 A  405  PRO PHE PRO SER ASP LYS VAL MET GLN GLY TYR ALA TYR          
SEQRES  25 A  405  ILE LEU THR HIS PRO GLY ILE PRO CYS ILE PHE TYR ASP          
SEQRES  26 A  405  HIS PHE PHE ASN TRP GLY PHE LYS ASP GLN ILE ALA ALA          
SEQRES  27 A  405  LEU VAL ALA ILE ARG LYS ARG ASN GLY ILE THR ALA THR          
SEQRES  28 A  405  SER ALA LEU LYS ILE LEU MET HIS GLU GLY ASP ALA TYR          
SEQRES  29 A  405  VAL ALA GLU ILE ASP GLY LYS VAL VAL VAL LYS ILE GLY          
SEQRES  30 A  405  SER ARG ALA ASP VAL GLY ALA VAL ILE PRO ALA GLY PHE          
SEQRES  31 A  405  VAL THR SER ALA HIS GLY ASN ASP TYR ALA VAL TRP GLU          
SEQRES  32 A  405  LYS ASN                                                      
HET     CA  A 500       1                                                       
HET     CA  A 501       1                                                       
HET     CA  A 502       1                                                       
HETNAM      CA CALCIUM ION                                                      
FORMUL   2   CA    3(CA 2+)                                                     
FORMUL   5  HOH   *169(H2 O)                                                    
HELIX    1   1 GLU A   11  GLN A   15  5                                   5    
HELIX    2   2 GLY A   18  GLY A   25  1                                   8    
HELIX    3   3 LYS A   26  GLY A   34  1                                   9    
HELIX    4   4 ASP A   59  SER A   63  5                                   5    
HELIX    5   5 ASN A   67  LYS A   81  1                                  15    
HELIX    6   6 GLY A  120  ILE A  124  5                                   5    
HELIX    7   7 ASN A  154  ASP A  171  1                                  18    
HELIX    8   8 PHE A  181  TYR A  185  5                                   5    
HELIX    9   9 SER A  186  GLY A  196  1                                  11    
HELIX   10  10 GLN A  222  GLY A  237  1                                  16    
HELIX   11  11 ASP A  247  VAL A  258  1                                  12    
HELIX   12  12 GLU A  261  ILE A  266  5                                   6    
HELIX   13  13 GLY A  274  TRP A  278  5                                   5    
HELIX   14  14 TRP A  279  ALA A  281  5                                   3    
HELIX   15  15 PRO A  302  ASP A  304  5                                   3    
HELIX   16  16 LYS A  305  HIS A  316  1                                  12    
HELIX   17  17 TYR A  324  ASN A  329  1                                   6    
HELIX   18  18 PHE A  332  ASN A  346  1                                  15    
HELIX   19  19 VAL A  382  ILE A  386  5                                   5    
SHEET    1   A 9 LEU A   4  GLN A   6  0                                        
SHEET    2   A 9 HIS A  37  LEU A  40  1  O  TRP A  39   N  PHE A   5           
SHEET    3   A 9 GLN A  84  ILE A  89  1  O  ILE A  86   N  LEU A  40           
SHEET    4   A 9 ALA A 176  LEU A 179  1  O  ALA A 176   N  ALA A  87           
SHEET    5   A 9 ALA A 202  ALA A 204  1  O  VAL A 203   N  TRP A 177           
SHEET    6   A 9 GLY A 243  PHE A 246  1  O  MET A 244   N  ALA A 204           
SHEET    7   A 9 ALA A 283  PHE A 286  1  O  VAL A 284   N  VAL A 245           
SHEET    8   A 9 ILE A 319  PHE A 323  1  O  ILE A 319   N  ALA A 283           
SHEET    9   A 9 LEU A   4  GLN A   6  1  N  GLN A   6   O  ILE A 322           
SHEET    1   B 2 TYR A  98  LYS A  99  0                                        
SHEET    2   B 2 TYR A 105  ILE A 107 -1  O  ILE A 107   N  TYR A  98           
SHEET    1   C 5 LEU A 354  GLU A 360  0                                        
SHEET    2   C 5 ALA A 363  ILE A 368 -1  O  VAL A 365   N  LEU A 357           
SHEET    3   C 5 VAL A 372  ILE A 376 -1  O  VAL A 372   N  ILE A 368           
SHEET    4   C 5 TYR A 399  GLU A 403 -1  O  TRP A 402   N  VAL A 373           
SHEET    5   C 5 VAL A 391  GLY A 396 -1  N  SER A 393   O  VAL A 401           
LINK         OD1 ASN A  92                CA    CA A 500     1555   1555  2.40  
LINK         OE1 GLU A 109                CA    CA A 501     1555   1555  2.48  
LINK         OE2 GLU A 109                CA    CA A 501     1555   1555  2.36  
LINK         O   ASP A 114                CA    CA A 501     1555   1555  2.62  
LINK         OD2 ASP A 118                CA    CA A 501     1555   1555  2.10  
LINK         OD2 ASP A 128                CA    CA A 502     1555   1555  2.36  
LINK         OD1 ASP A 139                CA    CA A 500     1555   1555  2.67  
LINK         OD2 ASP A 139                CA    CA A 500     1555   1555  2.55  
LINK         O   ALA A 142                CA    CA A 500     1555   1555  2.49  
LINK         OD1 ASP A 143                CA    CA A 502     1555   1555  2.12  
LINK         O   PHE A 144                CA    CA A 502     1555   1555  2.35  
LINK         O   ALA A 147                CA    CA A 502     1555   1555  2.22  
LINK         OD2 ASP A 149                CA    CA A 500     1555   1555  2.28  
LINK         OD1 ASP A 149                CA    CA A 502     1555   1555  2.34  
LINK         O   GLY A 184                CA    CA A 500     1555   1555  2.29  
LINK        CA    CA A 500                 O   HOH A 630     1555   1555  2.31  
LINK        CA    CA A 502                 O   HOH A 788     1555   1555  2.16  
SITE     1 AC1  6 ASN A  92  ASP A 139  ALA A 142  ASP A 149                    
SITE     2 AC1  6 GLY A 184  HOH A 630                                          
SITE     1 AC2  4 GLU A 109  THR A 112  ASP A 114  ASP A 118                    
SITE     1 AC3  6 ASP A 128  ASP A 143  PHE A 144  ALA A 147                    
SITE     2 AC3  6 ASP A 149  HOH A 788                                          
CRYST1   88.390   72.420   62.010  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      0.011313  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.013808  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016126        0.00000