HEADER    IMMUNE SYSTEM                           29-JUL-98   2SPZ              
TITLE     STAPHYLOCOCCAL PROTEIN A, Z-DOMAIN, NMR, 10 STRUCTURES                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: IMMUNOGLOBULIN G BINDING PROTEIN A;                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: Z DOMAIN;                                                  
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS;                          
SOURCE   3 ORGANISM_TAXID: 1280;                                                
SOURCE   4 CELLULAR_LOCATION: CELL WALL;                                        
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: RV308;                                     
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PDHZ                                      
KEYWDS    IMMUNOGLOBULIN-BINDING PROTEIN, THREE-HELICAL BUNDLE STRUCTURE,       
KEYWDS   2 IMMUNE SYSTEM                                                        
EXPDTA    SOLUTION NMR                                                          
NUMMDL    10                                                                    
AUTHOR    G.T.MONTELIONE,M.TASHIRO,R.TEJERO,B.A.LYONS                           
REVDAT   7   22-MAY-24 2SPZ    1       REMARK                                   
REVDAT   6   03-NOV-21 2SPZ    1       REMARK SEQADV                            
REVDAT   5   24-FEB-09 2SPZ    1       VERSN                                    
REVDAT   4   01-APR-03 2SPZ    1       JRNL                                     
REVDAT   3   21-APR-00 2SPZ    1       SPRSDE                                   
REVDAT   2   22-DEC-99 2SPZ    4       HEADER COMPND REMARK JRNL                
REVDAT   2 2                   4       ATOM   SOURCE SEQRES                     
REVDAT   1   05-AUG-98 2SPZ    0                                                
SPRSDE     21-APR-00 2SPZ      1SPZ                                             
JRNL        AUTH   M.TASHIRO,R.TEJERO,D.E.ZIMMERMAN,B.CELDA,B.NILSSON,          
JRNL        AUTH 2 G.T.MONTELIONE                                               
JRNL        TITL   HIGH-RESOLUTION SOLUTION NMR STRUCTURE OF THE Z DOMAIN OF    
JRNL        TITL 2 STAPHYLOCOCCAL PROTEIN A.                                    
JRNL        REF    J.MOL.BIOL.                   V. 272   573 1997              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   9325113                                                      
JRNL        DOI    10.1006/JMBI.1997.1265                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   L.JENDEBERG,M.TASHIRO,R.TEJERO,B.A.LYONS,M.UHLEN,            
REMARK   1  AUTH 2 G.T.MONTELIONE,B.NILSSON                                     
REMARK   1  TITL   THE MECHANISM OF BINDING STAPHYLOCOCCAL PROTEIN A TO         
REMARK   1  TITL 2 IMMUNOGLOBIN G DOES NOT INVOLVE HELIX UNWINDING              
REMARK   1  REF    BIOCHEMISTRY                  V.  35    22 1996              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   M.TASHIRO,G.T.MONTELIONE                                     
REMARK   1  TITL   STRUCTURES OF BACTERIAL IMMUNOGLOBULIN-BINDING DOMAINS AND   
REMARK   1  TITL 2 THEIR COMPLEXES WITH IMMUNOGLOBULIN                          
REMARK   1  REF    CURR.OPIN.STRUCT.BIOL.        V.   5   471 1995              
REMARK   1  REFN                   ISSN 0959-440X                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   B.A.LYONS,M.TASHIRO,L.CEDERGREN,B.NILSSON,G.T.MONTELIONE     
REMARK   1  TITL   AN IMPROVED STRATEGY FOR DETERMINING RESONANCE ASSIGNMENTS   
REMARK   1  TITL 2 FOR ISOTOPICALLY ENRICHED PROTEINS AND ITS APPLICATION TO AN 
REMARK   1  TITL 3 ENGINEERED DOMAIN OF STAPHYLOCOCCAL PROTEIN A                
REMARK   1  REF    BIOCHEMISTRY                  V.  32  7839 1993              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CONGEN                                               
REMARK   3   AUTHORS     : BRUCCOLERI,KARPLUS                                   
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: REFINEMENT DETAILS CAN BE FOUND IN THE    
REMARK   3  JRNL CITATION ABOVE                                                 
REMARK   4                                                                      
REMARK   4 2SPZ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB.                               
REMARK 100 THE DEPOSITION ID IS D_1000008044.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 303                                
REMARK 210  PH                             : 6.5                                
REMARK 210  IONIC STRENGTH                 : 10 MILLIMOLAR K2HPO4               
REMARK 210  PRESSURE                       : 1 ATM                              
REMARK 210  SAMPLE CONTENTS                : NULL                               
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : SEE REMARKS                        
REMARK 210  SPECTROMETER FIELD STRENGTH    : 500 MHZ                            
REMARK 210  SPECTROMETER MODEL             : MODIFIED UNITY 500                 
REMARK 210  SPECTROMETER MANUFACTURER      : VARIAN                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : DIANA, CONGEN                      
REMARK 210   METHOD USED                   : SIMULATED ANNEALING WITH           
REMARK 210                                   RESTRAINED MOLECULAR DYNAMICS      
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 40                                 
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 10                                 
REMARK 210 CONFORMERS, SELECTION CRITERIA  : LOWEST CONFORMATIONAL ENERGY       
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1                   
REMARK 210                                                                      
REMARK 210 REMARK: NULL NMR EXPERIMENTS CONDUCTED: 2D PFG-[15N]HSQC, 3D PFG     
REMARK 210  -HNCO, 3D PFG-(HA)CA(CO)NH, 3D PFG-HA(CA)(CO)NH, 3D PFG-HA(CA)NH,   
REMARK 210  3D PFG-CBCANH, 3D PFG-CBCA(CO)NH, 3D PFG- (HA)CANH, 3D PFG-         
REMARK 210  HN(CA)CO, 3D PFG-HCCNH-TOCSY, 3D PFG-HCC (CO)NH-TOCSY, 2D CT        
REMARK 215                                                                      
REMARK 215 NMR STUDY                                                            
REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION           
REMARK 215 NMR DATA.  PROTEIN DATA BANK CONVENTIONS REQUIRE THAT                
REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON              
REMARK 215 THESE RECORDS ARE MEANINGLESS.                                       
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: 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  2 HIS A  18   NE2   HIS A  18   CD2    -0.066                       
REMARK 500  3 HIS A  18   NE2   HIS A  18   CD2    -0.068                       
REMARK 500  6 HIS A  18   NE2   HIS A  18   CD2    -0.066                       
REMARK 500  7 HIS A  18   NE2   HIS A  18   CD2    -0.068                       
REMARK 500  8 HIS A  18   NE2   HIS A  18   CD2    -0.067                       
REMARK 500  9 HIS A  18   NE2   HIS A  18   CD2    -0.066                       
REMARK 500 10 HIS A  18   NE2   HIS A  18   CD2    -0.068                       
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  1 ARG A  27   NE  -  CZ  -  NH2 ANGL. DEV. =   4.2 DEGREES          
REMARK 500  1 GLN A  32   N   -  CA  -  CB  ANGL. DEV. = -11.1 DEGREES          
REMARK 500  2 PHE A   5   CA  -  CB  -  CG  ANGL. DEV. =  14.6 DEGREES          
REMARK 500  2 PHE A   5   CB  -  CG  -  CD2 ANGL. DEV. =   6.3 DEGREES          
REMARK 500  2 PHE A   5   CB  -  CG  -  CD1 ANGL. DEV. =  -7.4 DEGREES          
REMARK 500  2 PHE A  30   CB  -  CG  -  CD2 ANGL. DEV. =   4.6 DEGREES          
REMARK 500  2 PHE A  30   CB  -  CG  -  CD1 ANGL. DEV. =  -5.0 DEGREES          
REMARK 500  2 GLN A  32   N   -  CA  -  CB  ANGL. DEV. = -14.7 DEGREES          
REMARK 500  3 GLN A   9   N   -  CA  -  CB  ANGL. DEV. = -11.4 DEGREES          
REMARK 500  3 GLN A   9   CA  -  CB  -  CG  ANGL. DEV. =  13.8 DEGREES          
REMARK 500  3 PHE A  13   CB  -  CG  -  CD2 ANGL. DEV. =  -4.3 DEGREES          
REMARK 500  3 TYR A  14   CB  -  CG  -  CD2 ANGL. DEV. =  -5.1 DEGREES          
REMARK 500  3 TYR A  14   CB  -  CG  -  CD1 ANGL. DEV. =   4.9 DEGREES          
REMARK 500  3 ARG A  27   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500  3 PHE A  30   CB  -  CG  -  CD2 ANGL. DEV. =   5.2 DEGREES          
REMARK 500  3 PHE A  30   CB  -  CG  -  CD1 ANGL. DEV. =  -5.2 DEGREES          
REMARK 500  3 GLN A  32   N   -  CA  -  CB  ANGL. DEV. = -11.6 DEGREES          
REMARK 500  4 TYR A  14   CB  -  CG  -  CD1 ANGL. DEV. =  -3.9 DEGREES          
REMARK 500  4 GLN A  32   N   -  CA  -  CB  ANGL. DEV. = -10.8 DEGREES          
REMARK 500  5 GLN A   9   N   -  CA  -  CB  ANGL. DEV. = -11.4 DEGREES          
REMARK 500  5 ARG A  27   NE  -  CZ  -  NH2 ANGL. DEV. =   4.4 DEGREES          
REMARK 500  5 PHE A  30   CB  -  CG  -  CD2 ANGL. DEV. =  -6.1 DEGREES          
REMARK 500  5 PHE A  30   CB  -  CG  -  CD1 ANGL. DEV. =   6.7 DEGREES          
REMARK 500  6 GLN A   9   N   -  CA  -  CB  ANGL. DEV. = -12.1 DEGREES          
REMARK 500  6 PHE A  30   CB  -  CG  -  CD1 ANGL. DEV. =  -4.6 DEGREES          
REMARK 500  6 LEU A  44   CB  -  CG  -  CD1 ANGL. DEV. =  14.4 DEGREES          
REMARK 500  7 PHE A  13   CB  -  CG  -  CD2 ANGL. DEV. =  -4.7 DEGREES          
REMARK 500  7 PHE A  13   CB  -  CG  -  CD1 ANGL. DEV. =   4.2 DEGREES          
REMARK 500  7 PHE A  30   CB  -  CG  -  CD2 ANGL. DEV. =   7.3 DEGREES          
REMARK 500  7 PHE A  30   CB  -  CG  -  CD1 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500  7 GLN A  32   N   -  CA  -  CB  ANGL. DEV. = -11.1 DEGREES          
REMARK 500  8 TYR A  14   CB  -  CG  -  CD1 ANGL. DEV. =  -4.1 DEGREES          
REMARK 500  8 GLN A  32   N   -  CA  -  CB  ANGL. DEV. = -10.9 DEGREES          
REMARK 500  9 PHE A  13   CB  -  CG  -  CD2 ANGL. DEV. =  -5.1 DEGREES          
REMARK 500  9 ARG A  27   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  9 PHE A  30   CB  -  CG  -  CD2 ANGL. DEV. =   5.5 DEGREES          
REMARK 500  9 PHE A  30   CB  -  CG  -  CD1 ANGL. DEV. =  -5.2 DEGREES          
REMARK 500 10 GLN A   9   N   -  CA  -  CB  ANGL. DEV. = -12.1 DEGREES          
REMARK 500 10 PHE A  13   CB  -  CG  -  CD2 ANGL. DEV. =  -4.3 DEGREES          
REMARK 500 10 TYR A  14   CB  -  CG  -  CD2 ANGL. DEV. =  -5.3 DEGREES          
REMARK 500 10 TYR A  14   CB  -  CG  -  CD1 ANGL. DEV. =   5.3 DEGREES          
REMARK 500 10 PHE A  30   CB  -  CG  -  CD2 ANGL. DEV. =   5.7 DEGREES          
REMARK 500 10 PHE A  30   CB  -  CG  -  CD1 ANGL. DEV. =  -4.8 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500  1 ASP A   2     -169.25    -71.92                                   
REMARK 500  1 PHE A   5       82.39    -67.68                                   
REMARK 500  1 ASN A   6     -130.24   -109.89                                   
REMARK 500  1 LYS A   7     -106.55    -39.58                                   
REMARK 500  1 ASN A  23      -19.32   -153.35                                   
REMARK 500  1 GLU A  24     -133.04    -73.36                                   
REMARK 500  1 PRO A  38      -83.48    -71.14                                   
REMARK 500  1 ALA A  56     -111.34    -92.62                                   
REMARK 500  2 ASP A   2      -81.41    -39.49                                   
REMARK 500  2 ASN A   3      -60.91   -160.42                                   
REMARK 500  2 LEU A  19      104.72    -58.56                                   
REMARK 500  2 ASN A  21       44.15   -140.64                                   
REMARK 500  3 PHE A   5     -122.75    -86.54                                   
REMARK 500  3 GLU A   8       33.93    -89.90                                   
REMARK 500  3 GLN A   9      -80.61    -44.63                                   
REMARK 500  3 LEU A  19      102.55    -58.33                                   
REMARK 500  3 ALA A  56      -92.11    -90.15                                   
REMARK 500  4 ASP A   2     -109.69    -67.59                                   
REMARK 500  4 ASN A   3       92.25   -160.36                                   
REMARK 500  4 LYS A   4       43.40    -78.27                                   
REMARK 500  4 LYS A   7     -136.97    -90.24                                   
REMARK 500  4 LEU A  19      104.85    -54.25                                   
REMARK 500  4 ASN A  21       30.70    -83.85                                   
REMARK 500  4 ASP A  37      -58.73   -143.70                                   
REMARK 500  4 ALA A  56      -76.05    -91.14                                   
REMARK 500  5 ASP A   2     -157.23    -68.73                                   
REMARK 500  5 PRO A  38      -72.93    -76.28                                   
REMARK 500  6 ASP A   2     -138.19    -84.74                                   
REMARK 500  6 ASN A   6      -53.84   -139.09                                   
REMARK 500  6 LYS A   7     -141.62    -71.94                                   
REMARK 500  6 LEU A  19       96.35    -53.10                                   
REMARK 500  6 ASN A  23     -155.57    -71.82                                   
REMARK 500  6 GLU A  24      -66.60    -90.58                                   
REMARK 500  6 SER A  39      -88.67   -100.24                                   
REMARK 500  7 ASP A   2     -155.85    -85.50                                   
REMARK 500  7 ASN A   6     -155.01    -93.96                                   
REMARK 500  7 LYS A   7      -89.54    -39.01                                   
REMARK 500  7 LEU A  19      100.80    -54.61                                   
REMARK 500  7 PRO A  38      -96.68    -69.02                                   
REMARK 500  8 ASP A   2      -92.82    -65.52                                   
REMARK 500  8 LYS A   7      -84.28    -53.56                                   
REMARK 500  8 ASN A  23      -34.34   -151.50                                   
REMARK 500  8 GLU A  24     -132.66    -75.00                                   
REMARK 500  8 PRO A  38      -92.66   -102.38                                   
REMARK 500  9 ASP A   2      -91.27    -77.68                                   
REMARK 500  9 LYS A   7      -77.77    -55.27                                   
REMARK 500  9 LEU A  22      111.82   -160.02                                   
REMARK 500  9 ASN A  23        2.94   -154.82                                   
REMARK 500  9 GLU A  24     -132.88    -87.16                                   
REMARK 500  9 PRO A  38     -121.02    -97.19                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      59 RAMACHANDRAN OUTLIERS.                        
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500  1 ARG A  27         0.29    SIDE CHAIN                              
REMARK 500  2 ARG A  27         0.32    SIDE CHAIN                              
REMARK 500  4 ARG A  27         0.29    SIDE CHAIN                              
REMARK 500  5 ARG A  27         0.17    SIDE CHAIN                              
REMARK 500  8 ARG A  27         0.26    SIDE CHAIN                              
REMARK 500  9 ARG A  27         0.20    SIDE CHAIN                              
REMARK 500 10 ARG A  27         0.30    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  2SPZ A    1    58  UNP    P38507   SPA2_STAAU     212    269             
SEQADV 2SPZ VAL A    1  UNP  P38507    ALA   212 ENGINEERED MUTATION            
SEQADV 2SPZ ALA A   29  UNP  P38507    GLY   240 ENGINEERED MUTATION            
SEQRES   1 A   58  VAL ASP ASN LYS PHE ASN LYS GLU GLN GLN ASN ALA PHE          
SEQRES   2 A   58  TYR GLU ILE LEU HIS LEU PRO ASN LEU ASN GLU GLU GLN          
SEQRES   3 A   58  ARG ASN ALA PHE ILE GLN SER LEU LYS ASP ASP PRO SER          
SEQRES   4 A   58  GLN SER ALA ASN LEU LEU ALA GLU ALA LYS LYS LEU ASN          
SEQRES   5 A   58  ASP ALA GLN ALA PRO LYS                                      
HELIX    1   1 ASN A    6  LEU A   19  1                                  14    
HELIX    2   2 GLU A   24  ASP A   37  1                                  14    
HELIX    3   3 GLN A   40  ALA A   56  1                                  17    
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           1          
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      1.000000  0.000000  0.000000        0.00000                         
SCALE2      0.000000  1.000000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  1.000000        0.00000                         
MODEL        1