HEADER    HYDROLASE                               12-APR-07   2UYR              
TITLE     CRYSTAL STRUCTURE OF BACILLUS CEREUS SPHINGOMYELINASE MUTANT :N57A    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: SPHINGOMYELINASE C;                                        
COMPND   3 CHAIN: X;                                                            
COMPND   4 SYNONYM: SPHINGOMYELINASE, SPHINGOMYELIN PHOSPHODIESTERASE, SMASE,   
COMPND   5 SMPLC, CEREOLYSIN B;                                                 
COMPND   6 EC: 3.1.4.12;                                                        
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BACILLUS CEREUS;                                
SOURCE   3 ORGANISM_TAXID: 1396;                                                
SOURCE   4 STRAIN: IAM 1029;                                                    
SOURCE   5 VARIANT: N57A;                                                       
SOURCE   6 EXPRESSION_SYSTEM: BACILLUS SUBTILIS;                                
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 1423;                                       
SOURCE   8 EXPRESSION_SYSTEM_VECTOR: PHY300PLK                                  
KEYWDS    HYDROLASE, N57A METAL ION OF SIDE-EDGE, BACILLUS CEREUS               
KEYWDS   2 SPHINGOMYELINASE, HEMOLYSIS, CYTOLYSIS                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.ODA,H.TSUGE,J.SAKURAI                                               
REVDAT   5   16-OCT-24 2UYR    1       REMARK                                   
REVDAT   4   13-DEC-23 2UYR    1       LINK                                     
REVDAT   3   04-APR-18 2UYR    1       REMARK                                   
REVDAT   2   24-FEB-09 2UYR    1       VERSN                                    
REVDAT   1   27-MAY-08 2UYR    0                                                
JRNL        AUTH   M.ODA,H.TSUGE,J.SAKURAI                                      
JRNL        TITL   CRYSTAL STRUCTURE OF BACILLUS CEREUS SPHINGOMYELINASE MUTANT 
JRNL        TITL 2 : N57A                                                       
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
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) : 2.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 54.15                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 13721                          
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) : 0.184                           
REMARK   3   R VALUE            (WORKING SET) : 0.182                           
REMARK   3   FREE R VALUE                     : 0.235                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 724                             
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) : 2.40                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.46                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 955                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 95.71                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1840                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 50                           
REMARK   3   BIN FREE R VALUE                    : 0.3080                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2361                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 89                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 27.52                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.77000                                              
REMARK   3    B22 (A**2) : -0.08000                                             
REMARK   3    B33 (A**2) : -0.68000                                             
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): 0.352         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.243         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.150         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.142         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.928                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.893                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2419 ; 0.017 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):     7 ; 0.059 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3293 ; 1.631 ; 1.935       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):    13 ; 0.761 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   298 ; 7.175 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   116 ;41.539 ;25.862       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   398 ;17.718 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     5 ;19.305 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   358 ; 0.121 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1878 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):     7 ; 0.006 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   873 ; 0.207 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):     6 ; 0.228 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1620 ; 0.306 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):    10 ; 0.274 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   131 ; 0.145 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     1 ; 0.023 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    26 ; 0.224 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     4 ; 0.356 ; 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):  1521 ; 1.139 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):     5 ; 0.106 ; 1.500       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2420 ; 2.046 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1040 ; 2.710 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   873 ; 4.141 ; 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 : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 2UYR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 12-APR-07.                  
REMARK 100 THE DEPOSITION ID IS D_1290032256.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 07-JUN-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
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 FR-E                        
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NI FILTER                          
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU IMAGING PLATE               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14493                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 48.440                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.7                               
REMARK 200  DATA REDUNDANCY                : 11.20                              
REMARK 200  R MERGE                    (I) : 0.15000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 4.9000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.49                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.33000                            
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: CCP4I                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 2DDT                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.30                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.63                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M CALCIUM ACETATE 0.2 M SODIUM       
REMARK 280  CACODYLATE (PH7.5) 18% PEG 8000                                     
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       27.54500            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       50.84500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       31.96350            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       50.84500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       27.54500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       31.96350            
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: PQS                                                   
REMARK 350 APPLY THE FOLLOWING TO CHAINS: X                                     
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 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 ENGINEERED RESIDUE IN CHAIN X, ASN 84 TO ALA                         
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLU X     1                                                      
REMARK 465     ALA X     2                                                      
REMARK 465     SER X     3                                                      
REMARK 465     THR X     4                                                      
REMARK 465     THR X     5                                                      
REMARK 465     GLN X     6                                                      
REMARK 465     LYS X   306                                                      
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    HOH X  2075     O    HOH X  2076              2.06            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    CYS X 123   CB    CYS X 123   SG     -0.152                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    CYS X 123   CA  -  CB  -  SG  ANGL. DEV. =  10.5 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    MET X  19       67.19   -105.50                                   
REMARK 500    ASN X  27       42.89   -102.96                                   
REMARK 500    LEU X  78      121.72    -36.38                                   
REMARK 500    ASN X 130       30.12     89.46                                   
REMARK 500    ASP X 142      -10.32     69.93                                   
REMARK 500    HIS X 261     -157.80   -134.70                                   
REMARK 500    PHE X 285      -17.07     86.66                                   
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                              MG X1306  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU X  53   OE1                                                    
REMARK 620 2 HOH X2009   O    90.8                                              
REMARK 620 3 HOH X2010   O    98.8  95.5                                        
REMARK 620 4 HOH X2083   O    76.8  96.2 167.5                                  
REMARK 620 5 HOH X2084   O   162.3  99.1  94.8  87.6                            
REMARK 620 6 HOH X2086   O    85.5 175.9  86.9  81.1  84.0                      
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 MG X1306                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2DDR   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF SPHINGOMYELINASE FROM BACILLUS CEREUSWITH       
REMARK 900 CALCIUM ION                                                          
REMARK 900 RELATED ID: 2DDS   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF SPHINGOMYELINASE FROM BACILLUS CEREUSWITH       
REMARK 900 COBALT ION                                                           
REMARK 900 RELATED ID: 2DDT   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF SPHINGOMYELINASE FROM BACILLUS CEREUSWITH       
REMARK 900 MAGNESIUM ION                                                        
DBREF  2UYR X    1   306  UNP    P11889   PHL2_BACCE      28    333             
SEQADV 2UYR ALA X   57  UNP  P11889    ASN    84 ENGINEERED MUTATION            
SEQADV 2UYR HIS X  296  UNP  P11889    ASP   323 CONFLICT                       
SEQRES   1 X  306  GLU ALA SER THR THR GLN ASN ASP THR LEU LYS VAL MET          
SEQRES   2 X  306  THR HIS ASN VAL TYR MET LEU SER THR ASN LEU TYR PRO          
SEQRES   3 X  306  ASN TRP GLY GLN THR GLU ARG ALA ASP LEU ILE GLY ALA          
SEQRES   4 X  306  ALA ASP TYR ILE LYS ASN GLN ASP VAL VAL ILE LEU ASN          
SEQRES   5 X  306  GLU VAL PHE ASP ALA SER ALA SER ASP ARG LEU LEU GLY          
SEQRES   6 X  306  ASN LEU LYS LYS GLU TYR PRO ASN GLN THR ALA VAL LEU          
SEQRES   7 X  306  GLY ARG SER SER GLY SER GLU TRP ASP LYS THR LEU GLY          
SEQRES   8 X  306  ASN TYR SER SER SER THR PRO GLU ASP GLY GLY VAL ALA          
SEQRES   9 X  306  ILE VAL SER LYS TRP PRO ILE ALA GLU LYS ILE GLN TYR          
SEQRES  10 X  306  VAL PHE ALA LYS GLY CYS GLY PRO ASP ASN LEU SER ASN          
SEQRES  11 X  306  LYS GLY PHE VAL TYR THR LYS ILE LYS LYS ASN ASP ARG          
SEQRES  12 X  306  PHE VAL HIS VAL ILE GLY THR HIS LEU GLN ALA GLU ASP          
SEQRES  13 X  306  SER MET CYS GLY LYS THR SER PRO ALA SER VAL ARG THR          
SEQRES  14 X  306  ASN GLN LEU LYS GLU ILE GLN ASP PHE ILE LYS ASN LYS          
SEQRES  15 X  306  ASN ILE PRO ASN ASN GLU TYR VAL LEU ILE GLY GLY ASP          
SEQRES  16 X  306  MET ASN VAL ASN LYS ILE ASN ALA GLU ASN ASN ASN ASP          
SEQRES  17 X  306  SER GLU TYR ALA SER MET PHE LYS THR LEU ASN ALA SER          
SEQRES  18 X  306  VAL PRO SER TYR THR GLY HIS THR ALA THR TRP ASP ALA          
SEQRES  19 X  306  THR THR ASN SER ILE ALA LYS TYR ASN PHE PRO ASP SER          
SEQRES  20 X  306  PRO ALA GLU TYR LEU ASP TYR ILE ILE ALA SER LYS ASP          
SEQRES  21 X  306  HIS ALA ASN PRO SER TYR ILE GLU ASN LYS VAL LEU GLN          
SEQRES  22 X  306  PRO LYS SER PRO GLN TRP THR VAL THR SER TRP PHE GLN          
SEQRES  23 X  306  LYS TYR THR TYR ASN ASP TYR SER ASP HIS TYR PRO VAL          
SEQRES  24 X  306  GLU ALA THR ILE SER MET LYS                                  
HET     MG  X1306       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   2   MG    MG 2+                                                        
FORMUL   3  HOH   *89(H2 O)                                                     
HELIX    1   1 GLY X   29  ALA X   39  1                                  11    
HELIX    2   2 ASP X   56  LYS X   68  1                                  13    
HELIX    3   3 CYS X  123  SER X  129  5                                   7    
HELIX    4   4 ASP X  156  GLY X  160  5                                   5    
HELIX    5   5 SER X  163  ASN X  181  1                                  19    
HELIX    6   6 SER X  209  ASN X  219  1                                  11    
HELIX    7   7 ASN X  237  PHE X  244  1                                   8    
SHEET    1  XA 7 ASN X  73  GLN X  74  0                                        
SHEET    2  XA 7 ALA X 104  SER X 107 -1  O  SER X 107   N  ASN X  73           
SHEET    3  XA 7 VAL X  48  VAL X  54 -1  O  VAL X  49   N  VAL X 106           
SHEET    4  XA 7 THR X   9  MET X  19  1  O  MET X  13   N  ILE X  50           
SHEET    5  XA 7 VAL X 299  SER X 304 -1  O  VAL X 299   N  THR X  14           
SHEET    6  XA 7 TYR X 266  VAL X 271 -1  O  TYR X 266   N  SER X 304           
SHEET    7  XA 7 SER X 224  GLY X 227  1  O  SER X 224   N  ASN X 269           
SHEET    1  XB 6 LYS X  88  GLY X  91  0                                        
SHEET    2  XB 6 ILE X 111  VAL X 118  1  O  GLN X 116   N  LEU X  90           
SHEET    3  XB 6 GLY X 132  LYS X 140 -1  O  PHE X 133   N  TYR X 117           
SHEET    4  XB 6 ARG X 143  HIS X 151 -1  O  ARG X 143   N  LYS X 140           
SHEET    5  XB 6 TYR X 189  ASP X 195  1  O  TYR X 189   N  HIS X 146           
SHEET    6  XB 6 ASP X 253  ALA X 257 -1  O  TYR X 254   N  GLY X 194           
SHEET    1  XC 2 TRP X 279  SER X 283  0                                        
SHEET    2  XC 2 GLN X 286  TYR X 290 -1  O  GLN X 286   N  SER X 283           
SSBOND   1 CYS X  123    CYS X  159                          1555   1555  2.01  
LINK         OE1 GLU X  53                MG    MG X1306     1555   1555  2.31  
LINK        MG    MG X1306                 O   HOH X2009     1555   1555  2.11  
LINK        MG    MG X1306                 O   HOH X2010     1555   1555  2.07  
LINK        MG    MG X1306                 O   HOH X2083     1555   1555  2.18  
LINK        MG    MG X1306                 O   HOH X2084     1555   1555  1.97  
LINK        MG    MG X1306                 O   HOH X2086     1555   1555  2.08  
SITE     1 AC1  6 GLU X  53  HOH X2009  HOH X2010  HOH X2083                    
SITE     2 AC1  6 HOH X2084  HOH X2086                                          
CRYST1   55.090   63.927  101.690  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      0.018152  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.015643  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009834        0.00000