HEADER    STRUCTURAL PROTEIN/DE NOVO PROTEIN      12-NOV-03   1RGR              
TITLE     CYCLIC PEPTIDES TARGETING PDZ DOMAINS OF PSD-95: STRUCTURAL BASIS FOR 
TITLE    2 ENHANCED AFFINITY AND ENZYMATIC STABILITY                            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PRESYNAPTIC DENSITY PROTEIN 95;                            
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: PDZ1 DOMAIN OF PSD-95;                                     
COMPND   5 SYNONYM: PSD-95, DISCS, LARGE HOMOLOG 4, POSTSYNAPTIC DENSITY-95;    
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: POSTSYNAPTIC PROTEIN CRIPT PEPTIDE;                        
COMPND   9 CHAIN: B;                                                            
COMPND  10 FRAGMENT: C-TERMINUS;                                                
COMPND  11 ENGINEERED: YES;                                                     
COMPND  12 MUTATION: YES;                                                       
COMPND  13 OTHER_DETAILS: BETA-ALANINE LINKS RESIDUES 3 TO 5 TO FORM A CYCLIC   
COMPND  14 PEPTIDE.                                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS;                              
SOURCE   3 ORGANISM_COMMON: NORWAY RAT;                                         
SOURCE   4 ORGANISM_TAXID: 10116;                                               
SOURCE   5 GENE: DLG4, PSD95;                                                   
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 MOL_ID: 2;                                                           
SOURCE   9 SYNTHETIC: YES;                                                      
SOURCE  10 OTHER_DETAILS: THE PEPTIDE WAS CHEMICALLY SYNTHESIZED.               
KEYWDS    PDZ1 DOMAIN, STRUCTURAL PROTEIN-DE NOVO PROTEIN COMPLEX               
EXPDTA    SOLUTION NMR                                                          
NUMMDL    22                                                                    
AUTHOR    A.PISERCHIO,G.D.SALINAS,T.LI,J.MARSHALL,M.R.SPALLER,D.F.MIERKE        
REVDAT   5   30-OCT-24 1RGR    1       REMARK                                   
REVDAT   4   27-OCT-21 1RGR    1       REMARK SEQADV LINK                       
REVDAT   3   13-JUL-11 1RGR    1       VERSN                                    
REVDAT   2   24-FEB-09 1RGR    1       VERSN                                    
REVDAT   1   18-MAY-04 1RGR    0                                                
JRNL        AUTH   A.PISERCHIO,G.D.SALINAS,T.LI,J.MARSHALL,M.R.SPALLER,         
JRNL        AUTH 2 D.F.MIERKE                                                   
JRNL        TITL   TARGETING SPECIFIC PDZ DOMAINS OF PSD-95; STRUCTURAL BASIS   
JRNL        TITL 2 FOR ENHANCED AFFINITY AND ENZYMATIC STABILITY OF A CYCLIC    
JRNL        TITL 3 PEPTIDE.                                                     
JRNL        REF    CHEM.BIOL.                    V.  11   469 2004              
JRNL        REFN                   ISSN 1074-5521                               
JRNL        PMID   15123241                                                     
JRNL        DOI    10.1016/J.CHEMBIOL.2004.03.013                               
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1, CNS 1.1                                     
REMARK   3   AUTHORS     : BRUNGER (CNS), BRUNGER (CNS)                         
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1RGR COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-NOV-03.                  
REMARK 100 THE DEPOSITION ID IS D_1000020731.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : NULL                               
REMARK 210  PH                             : NULL                               
REMARK 210  IONIC STRENGTH                 : NULL                               
REMARK 210  PRESSURE                       : NULL                               
REMARK 210  SAMPLE CONTENTS                : 1MM PZ1 U-15N,13C, 3MM PEPTIDE,    
REMARK 210                                   10 MM PHOSPATE BUFFER 150 MM       
REMARK 210                                   NACL, PH 6.8                       
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : NULL                               
REMARK 210  SPECTROMETER FIELD STRENGTH    : 600 MHZ                            
REMARK 210  SPECTROMETER MODEL             : AVANCE                             
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : NULL                               
REMARK 210   METHOD USED                   : TORSION ANGLE DYNAMICS,            
REMARK 210                                   CARTESIAN MD IN WATER              
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 100                                
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 22                                 
REMARK 210 CONFORMERS, SELECTION CRITERIA  : STRUCTURES WITH ACCEPTABLE         
REMARK 210                                   COVALENT GEOMETRY,STRUCTURES       
REMARK 210                                   WITH THE LEAST RESTRAINT           
REMARK 210                                   VIOLATIONS                         
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL                
REMARK 210                                                                      
REMARK 210 REMARK: NULL                                                         
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: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER;                   
REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                            
REMARK 465   MODELS 1-22                                                        
REMARK 465     RES C SSSEQI                                                     
REMARK 465     HIS A   155                                                      
REMARK 465     HIS A   156                                                      
REMARK 465     HIS A   157                                                      
REMARK 465     HIS A   158                                                      
REMARK 465     HIS A   159                                                      
REMARK 465     HIS A   160                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
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                                                                      
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  1 HIS A  87   CG    HIS A  87   CD2     0.055                       
REMARK 500  2 HIS A 130   CG    HIS A 130   CD2     0.055                       
REMARK 500  3 HIS A  87   CG    HIS A  87   CD2     0.058                       
REMARK 500  4 HIS A  87   CG    HIS A  87   CD2     0.055                       
REMARK 500  5 HIS A  87   CG    HIS A  87   CD2     0.054                       
REMARK 500  6 HIS A  87   CG    HIS A  87   CD2     0.055                       
REMARK 500  8 HIS A  87   CG    HIS A  87   CD2     0.058                       
REMARK 500  9 HIS A  87   CG    HIS A  87   CD2     0.057                       
REMARK 500 10 HIS A  87   CG    HIS A  87   CD2     0.056                       
REMARK 500 13 HIS A  87   CG    HIS A  87   CD2     0.055                       
REMARK 500 13 HIS A 130   CG    HIS A 130   CD2     0.056                       
REMARK 500 14 HIS A 130   CG    HIS A 130   CD2     0.054                       
REMARK 500 15 HIS A  87   CG    HIS A  87   CD2     0.056                       
REMARK 500 16 HIS A  87   CG    HIS A  87   CD2     0.057                       
REMARK 500 19 HIS A  87   CG    HIS A  87   CD2     0.057                       
REMARK 500 20 HIS A  87   CG    HIS A  87   CD2     0.057                       
REMARK 500 21 HIS A  87   CG    HIS A  87   CD2     0.056                       
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  70   NE  -  CZ  -  NH1 ANGL. DEV. =   4.1 DEGREES          
REMARK 500  1 HIS A  87   ND1 -  CE1 -  NE2 ANGL. DEV. =   7.9 DEGREES          
REMARK 500  1 ARG A 110   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  1 ARG A 112   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500  1 ARG A 126   NE  -  CZ  -  NH1 ANGL. DEV. =   4.4 DEGREES          
REMARK 500  1 ARG A 126   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.1 DEGREES          
REMARK 500  1 ARG A 145   NE  -  CZ  -  NH1 ANGL. DEV. =   3.9 DEGREES          
REMARK 500  1 ARG A 150   NE  -  CZ  -  NH1 ANGL. DEV. =   3.9 DEGREES          
REMARK 500  1 ARG A 151   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500  2 ARG A  70   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500  2 ARG A 110   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  2 ARG A 112   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  2 VAL A 113   CA  -  CB  -  CG2 ANGL. DEV. =   9.9 DEGREES          
REMARK 500  2 ARG A 126   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500  2 HIS A 130   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.1 DEGREES          
REMARK 500  2 ARG A 145   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  2 ARG A 150   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500  2 ARG A 151   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500  3 ARG A  70   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500  3 HIS A  87   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.1 DEGREES          
REMARK 500  3 ARG A 110   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500  3 ARG A 126   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500  3 HIS A 130   ND1 -  CE1 -  NE2 ANGL. DEV. =   7.9 DEGREES          
REMARK 500  3 ARG A 145   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500  3 ARG A 150   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500  3 ARG A 151   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  3 VAL B   6   CA  -  CB  -  CG1 ANGL. DEV. =  11.5 DEGREES          
REMARK 500  4 ARG A  70   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500  4 PRO A  92   N   -  CA  -  CB  ANGL. DEV. =  -7.4 DEGREES          
REMARK 500  4 ARG A 110   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500  4 ARG A 112   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500  4 ARG A 126   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500  4 HIS A 130   ND1 -  CE1 -  NE2 ANGL. DEV. =   7.9 DEGREES          
REMARK 500  4 ARG A 145   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500  4 ARG A 150   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500  4 ARG A 151   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500  5 ARG A  70   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES          
REMARK 500  5 ARG A 110   NE  -  CZ  -  NH1 ANGL. DEV. =   3.0 DEGREES          
REMARK 500  5 ARG A 112   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500  5 ARG A 126   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  5 HIS A 130   ND1 -  CE1 -  NE2 ANGL. DEV. =   7.8 DEGREES          
REMARK 500  5 ARG A 145   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  5 ARG A 150   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500  5 ARG A 151   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES          
REMARK 500  6 ARG A  70   NE  -  CZ  -  NH1 ANGL. DEV. =   3.2 DEGREES          
REMARK 500  6 HIS A  87   ND1 -  CE1 -  NE2 ANGL. DEV. =   7.8 DEGREES          
REMARK 500  6 PRO A  92   N   -  CA  -  CB  ANGL. DEV. =  -7.4 DEGREES          
REMARK 500  6 ARG A 110   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  6 ARG A 112   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500  6 VAL A 113   CA  -  CB  -  CG2 ANGL. DEV. =   9.0 DEGREES          
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     191 ANGLE DEVIATIONS.                             
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 ASN A  72      -71.42    -61.41                                   
REMARK 500  1 LEU A  75      -86.88    -76.50                                   
REMARK 500  1 ASP A  91       89.89   -155.50                                   
REMARK 500  1 ARG A 110       59.94   -164.88                                   
REMARK 500  1 LEU A 111     -164.06    -79.23                                   
REMARK 500  1 ASN A 114      -18.34    -39.54                                   
REMARK 500  1 ASP A 115       99.71    -34.92                                   
REMARK 500  1 ILE A 117      104.07    -57.93                                   
REMARK 500  1 ASN A 121      -78.89     77.70                                   
REMARK 500  1 GLU A 122      -12.94   -159.50                                   
REMARK 500  1 VAL A 125     -142.49    -97.11                                   
REMARK 500  1 ARG A 126      -83.66     71.82                                   
REMARK 500  2 ASN A  72      -85.22   -166.39                                   
REMARK 500  2 ASN A  85       87.84   -163.27                                   
REMARK 500  2 ASP A  91      -88.14     92.59                                   
REMARK 500  2 ARG A 112     -146.94    -74.41                                   
REMARK 500  2 VAL A 113      -76.48    -37.31                                   
REMARK 500  2 ASN A 114      -16.16   -160.72                                   
REMARK 500  2 ASP A 115      -84.69     74.27                                   
REMARK 500  2 ASN A 121      -80.65     80.88                                   
REMARK 500  2 GLU A 122      -17.37   -163.69                                   
REMARK 500  2 VAL A 125     -106.19    -87.03                                   
REMARK 500  2 ARG A 126      -88.87     52.04                                   
REMARK 500  2 ALA A 140       -6.75    -57.71                                   
REMARK 500  3 LEU A  75      -85.43    -79.12                                   
REMARK 500  3 ASN A  85       82.00   -150.31                                   
REMARK 500  3 ASP A  91      -81.88    100.79                                   
REMARK 500  3 ARG A 110       73.67   -173.82                                   
REMARK 500  3 LEU A 111     -166.70   -104.34                                   
REMARK 500  3 ASN A 114       85.77    -33.48                                   
REMARK 500  3 ASN A 121      -74.65     79.83                                   
REMARK 500  3 GLU A 122      -16.74   -167.54                                   
REMARK 500  3 VAL A 125     -101.19    -95.93                                   
REMARK 500  3 ARG A 126      -90.89     50.97                                   
REMARK 500  3 SER A 142       -5.09    -59.83                                   
REMARK 500  4 ASN A  72     -100.67   -154.43                                   
REMARK 500  4 ASP A  91      -85.32     91.57                                   
REMARK 500  4 PRO A  92     -139.60   -108.39                                   
REMARK 500  4 SER A  93      106.87     78.30                                   
REMARK 500  4 ASN A 114       68.95    -55.30                                   
REMARK 500  4 ASN A 121      -74.45     79.67                                   
REMARK 500  4 GLU A 122      -10.88   -164.49                                   
REMARK 500  4 VAL A 125      -96.86    -96.97                                   
REMARK 500  4 ARG A 126      -89.37     46.79                                   
REMARK 500  5 ARG A  70     -102.73   -116.22                                   
REMARK 500  5 ASN A  85       69.74   -155.17                                   
REMARK 500  5 ASP A  91       88.38   -154.51                                   
REMARK 500  5 PRO A  92       96.10    -62.61                                   
REMARK 500  5 ARG A 112      129.30     65.01                                   
REMARK 500  5 VAL A 113      -71.09    -46.80                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     255 RAMACHANDRAN OUTLIERS.                        
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ALA A   80     GLY A   81          1      -149.00                    
REMARK 500 ALA A   80     GLY A   81          2      -137.05                    
REMARK 500 ALA A   80     GLY A   81          3      -142.78                    
REMARK 500 HIS A   87     ILE A   88          3      -148.32                    
REMARK 500 ALA A   80     GLY A   81          4      -136.38                    
REMARK 500 ALA A   80     GLY A   81          5      -142.71                    
REMARK 500 ALA A   80     GLY A   81          6      -136.52                    
REMARK 500 ALA A   80     GLY A   81          7      -141.80                    
REMARK 500 ALA A   80     GLY A   81          8      -146.42                    
REMARK 500 ALA A   80     GLY A   81          9      -138.84                    
REMARK 500 ALA A   80     GLY A   81         10      -145.24                    
REMARK 500 ALA A   80     GLY A   81         11      -137.56                    
REMARK 500 ALA A   80     GLY A   81         12      -141.02                    
REMARK 500 PHE A   95     ILE A   96         12       149.81                    
REMARK 500 ALA A   80     GLY A   81         13      -140.61                    
REMARK 500 ALA A   80     GLY A   81         14      -140.10                    
REMARK 500 ARG A  112     VAL A  113         14       146.81                    
REMARK 500 ALA A   80     GLY A   81         15      -140.50                    
REMARK 500 ALA A   80     GLY A   81         16      -143.58                    
REMARK 500 ALA A   80     GLY A   81         17      -136.81                    
REMARK 500 VAL A  128     THR A  129         17       149.48                    
REMARK 500 ALA A   80     GLY A   81         18      -138.32                    
REMARK 500 ARG A  112     VAL A  113         18       146.82                    
REMARK 500 ALA A   80     GLY A   81         19      -144.96                    
REMARK 500 HIS A   87     ILE A   88         19      -147.77                    
REMARK 500 PHE A   95     ILE A   96         19       148.36                    
REMARK 500 ALA A   80     GLY A   81         20      -142.98                    
REMARK 500 HIS A   87     ILE A   88         20      -147.79                    
REMARK 500 ALA A   80     GLY A   81         21      -143.41                    
REMARK 500 ALA A   80     GLY A   81         22      -145.78                    
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 HIS A 130         0.10    SIDE CHAIN                              
REMARK 500  1 ARG A 150         0.08    SIDE CHAIN                              
REMARK 500  2 HIS A 130         0.10    SIDE CHAIN                              
REMARK 500  3 HIS A 130         0.08    SIDE CHAIN                              
REMARK 500  5 TYR B   1         0.07    SIDE CHAIN                              
REMARK 500  7 HIS A 130         0.08    SIDE CHAIN                              
REMARK 500 11 HIS A 130         0.08    SIDE CHAIN                              
REMARK 500 13 TYR A  63         0.06    SIDE CHAIN                              
REMARK 500 14 TYR B   1         0.06    SIDE CHAIN                              
REMARK 500 15 HIS A 130         0.10    SIDE CHAIN                              
REMARK 500 16 HIS A 130         0.08    SIDE CHAIN                              
REMARK 500 20 ARG A  70         0.10    SIDE CHAIN                              
REMARK 500 21 HIS A 130         0.09    SIDE CHAIN                              
REMARK 500 22 HIS A 130         0.09    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BAL B 7                   
DBREF  1RGR A   62   154  UNP    P31016   DLG4_RAT        62    154             
DBREF  1RGR B    1     6  GB     3098551  AAC40102       552    557             
SEQADV 1RGR HIS A  155  UNP  P31016              EXPRESSION TAG                 
SEQADV 1RGR HIS A  156  UNP  P31016              EXPRESSION TAG                 
SEQADV 1RGR HIS A  157  UNP  P31016              EXPRESSION TAG                 
SEQADV 1RGR HIS A  158  UNP  P31016              EXPRESSION TAG                 
SEQADV 1RGR HIS A  159  UNP  P31016              EXPRESSION TAG                 
SEQADV 1RGR HIS A  160  UNP  P31016              EXPRESSION TAG                 
SEQADV 1RGR LYS B    3  GB   3098551   GLN    98 ENGINEERED MUTATION            
SEQADV 1RGR GLU B    5  GB   3098551   SER   100 ENGINEERED MUTATION            
SEQRES   1 A   99  GLU TYR GLU GLU ILE THR LEU GLU ARG GLY ASN SER GLY          
SEQRES   2 A   99  LEU GLY PHE SER ILE ALA GLY GLY THR ASP ASN PRO HIS          
SEQRES   3 A   99  ILE GLY ASP ASP PRO SER ILE PHE ILE THR LYS ILE ILE          
SEQRES   4 A   99  PRO GLY GLY ALA ALA ALA GLN ASP GLY ARG LEU ARG VAL          
SEQRES   5 A   99  ASN ASP SER ILE LEU PHE VAL ASN GLU VAL ASP VAL ARG          
SEQRES   6 A   99  GLU VAL THR HIS SER ALA ALA VAL GLU ALA LEU LYS GLU          
SEQRES   7 A   99  ALA GLY SER ILE VAL ARG LEU TYR VAL MET ARG ARG LYS          
SEQRES   8 A   99  PRO PRO HIS HIS HIS HIS HIS HIS                              
SEQRES   1 B    6  TYR LYS LYS THR GLU VAL                                      
HET    BAL  B   7      10                                                       
HETNAM     BAL BETA-ALANINE                                                     
FORMUL   3  BAL    C3 H7 N O2                                                   
HELIX    1   1 GLY A  103  GLY A  109  1                                   7    
HELIX    2   2 THR A  129  ALA A  140  1                                  12    
SHEET    1   A 4 TYR A  63  GLU A  69  0                                        
SHEET    2   A 4 ILE A 143  MET A 149 -1  O  LEU A 146   N  ILE A  66           
SHEET    3   A 4 SER A 116  VAL A 120 -1  N  PHE A 119   O  TYR A 147           
SHEET    4   A 4 VAL A 123  ASP A 124 -1  N  VAL A 123   O  VAL A 120           
SHEET    1   B 3 ILE A  96  ILE A  99  0                                        
SHEET    2   B 3 PHE A  77  ILE A  79 -1  N  SER A  78   O  LYS A  98           
SHEET    3   B 3 THR B   4  VAL B   6 -1  O  VAL B   6   N  PHE A  77           
LINK         NZ  LYS B   3                 C   BAL B   7     1555   1555  1.34  
LINK         CD  GLU B   5                 N   BAL B   7     1555   1555  1.34  
SITE     1 AC1  4 SER A  78  LYS A  98  LYS B   3  GLU B   5                    
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