PDB Short entry for 1O4X
HEADER    TRANSCRIPTION/DNA                       17-JUL-03   1O4X              
TITLE     TERNARY COMPLEX OF THE DNA BINDING DOMAINS OF THE OCT1 AND            
TITLE    2 SOX2 TRANSCRIPTION FACTORS WITH A 19MER OLIGONUCLEOTIDE              
TITLE    3 FROM THE HOXB1 REGULATORY ELEMENT                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRANSCRIPTION FACTOR OCT-1;                                
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: TRANSCRIPTION FACTOR SOX-2;                                
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: 5'-                                                        
COMPND  11 D(*TP*GP*TP*CP*TP*TP*TP*GP*TP*CP*AP*TP*GP*CP*TP*AP*AP*TP*G)          
COMPND  12 -3';                                                                 
COMPND  13 CHAIN: C;                                                            
COMPND  14 ENGINEERED: YES;                                                     
COMPND  15 MUTATION: YES;                                                       
COMPND  16 MOL_ID: 4;                                                           
COMPND  17 MOLECULE: 5'-                                                        
COMPND  18 D(*CP*AP*TP*TP*AP*GP*CP*AP*TP*GP*AP*CP*AP*AP*AP*GP*AP*CP*A)          
COMPND  19 -3';                                                                 
COMPND  20 CHAIN: D;                                                            
COMPND  21 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 MOL_ID: 2;                                                           
SOURCE   8 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   9 ORGANISM_COMMON: HUMAN;                                              
SOURCE  10 ORGANISM_TAXID: 9606;                                                
SOURCE  11 GENE: SOX2;                                                          
SOURCE  12 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  13 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  14 MOL_ID: 3;                                                           
SOURCE  15 SYNTHETIC: YES;                                                      
SOURCE  16 MOL_ID: 4;                                                           
SOURCE  17 SYNTHETIC: YES                                                       
KEYWDS    OCT1, POU, POUS, POUHD, SOX2, HMG-BOX, TRANSCRIPTION                  
KEYWDS   2 FACTORS, DNA, PROTEIN-DNA COMPLEX, TRANSCRIPTION/DNA COMPLEX         
EXPDTA    SOLUTION NMR                                                          
AUTHOR    G.M.CLORE,D.C.WILLIAMS                                                
REVDAT   2   24-FEB-09 1O4X    1       VERSN                                    
REVDAT   1   27-JAN-04 1O4X    0                                                
JRNL        AUTH   D.C.WILLIAMS,M.CAI,G.M.CLORE                                 
JRNL        TITL   MOLECULAR BASIS FOR SYNERGISTIC TRANSCRIPTIONAL              
JRNL        TITL 2 ACTIVATION BY OCT1 AND SOX2 REVEALED FROM THE                
JRNL        TITL 3 SOLUTION STRUCTURE OF THE 42-KDA                             
JRNL        TITL 4 OCT1.SOX2.HOXB1-DNA TERNARY TRANSCRIPTION FACTOR             
JRNL        TITL 5 COMPLEX.                                                     
JRNL        REF    J.BIOL.CHEM.                  V. 279  1449 2004              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   14559893                                                     
JRNL        DOI    10.1074/JBC.M309790200                                       
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR_NIH (HTTP://NMR.CIT.NIH.GOV/XPLOR_NIH)        
REMARK   3   AUTHORS     : SCHWIETERS, KUSZEWSKI, TJANDRA, CLORE                
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS:                                           
REMARK   3  THE STRUCTURES WERE CALCULATED BY CONJOINED RIGID BODY/TORSION      
REMARK   3  ANGLE DYNAMICS (SCHWIETERS & CLORE (2001) J.MAGN.RESON 152, 288-    
REMARK   3  302). THE TARGET FUNCTION COMPRISES TERMS FOR THE DIPOLAR           
REMARK   3  COUPLING RESTRAINTS (CLORE ET AL. J.MAGN.RESON. 131, 159-162        
REMARK   3  (1998); J.MAGN.RESON. 133, 216- 221(1998)), INTERMOLECULAR NOE      
REMARK   3  RESTRAINTS AND TORSION ANGLE RESTRAINTS. THE NON-BONDED TERMS       
REMARK   3  INCLUDE A QUARTIC VAN DER WAALS REPULSION TERM (NILGES ET AL.       
REMARK   3  (1988) FEBS LETT. 229, 129-136), RADIUS OF GYRATION RESTRAINTS      
REMARK   3  (KUSZEWSKI ET AL. (1999) J.AM.CHEM.SOC 121, 2337-2338) AT THE       
REMARK   3  PROTEIN-PROTEIN AND PROTEIN-DNA INTERFACES, AND DATABASE TORSION    
REMARK   3  ANGLE AND BASE-BASE POSITIONAL POTENTIALS OF MEAN FORCE             
REMARK   3  (KUSZEWSKI ET AL. (2001) J.AM.CHEM.SOC 123, 3903-3918; CLORE &      
REMARK   3  KUSZEWSKI (2003) J.AM.CHEM.SOC. 125, 1518-1525). THE STARTING       
REMARK   3  COORDINATES FOR THE POUHD AND POUS DOMAINS OF OCT1 ARE TAKEN        
REMARK   3  FROM THE 1.9 A RESOLUTION CRYSTAL STRUCTURE OF THE OCT1/MORE-DNA    
REMARK   3  COMPLEX (1E3O) AND PLACED IN THE ORIENTATION OF THE 2.7 A           
REMARK   3  RESOLUTION CRYSTAL STRUCTURE OF THE OCT1/PORE-DNA COMPLEX (1HFO)    
REMARK   3  (REMENYI ET AL. (2001) MOL.CELL 8, 569-580). THE STARTING           
REMARK   3  COORDINATES FOR SOX2 ARE DERIVED FROM THE NMR STRUCTURE OF THE      
REMARK   3  RELATED BINARY SRY-DNA COMPLEX (1J46) (MURPHY ET AL. (2001)         
REMARK   3  J.MOL.BIOL. 312, 481-499). THE STARTING COORDINATES FOR THE         
REMARK   3  19MER DNA WERE BUILT AS FOLLOWS: THE POUS AND POUHD HEMI-BINDING    
REMARK   3  SITES (B.P. 11-14 AND 17-19, RESPECTIVELY) WERE DERIVED FROM THE    
REMARK   3  1.9 A RESIOLUTION STRUCTURE OF THE OCT1/MORE-DNA COMPLEX (1E3O);    
REMARK   3  THE                                                                 
REMARK   3  SOX2 BINDING SITE (B.P. 1-10) WAS DERIVED FROM THE NMR STRUCTURE    
REMARK   3  OF THE BINARY SRY/DNA COMPLEX (1J46); AND THE INTERVENING           
REMARK   3  SEQUENCES (B.P. 15-16) AND REGIONS CONTAINING SUBSTITUTIONS         
REMARK   3  (B.P. 1, 4 AND 10) WERE DERIVED FROM CLASSICAL DNA. THE             
REMARK   3  RESULTING MODEL WAS SUBJECTED TO REGULARIZATION. THE STRATEGY       
REMARK   3  USED IN THE CONJOINED RIGID BODY/TORSION ANGLE DYNAMICS             
REMARK   3  CALCULATIONS IS AS FOLLOWS: THERE ARE 4 RIGID BODIES: (1)           
REMARK   3  BACKBONE AND NON-INTERFACIAL SIDE CHAINS OF POUHD + B.P. 17-19      
REMARK   3  OF THE DNA (2) BACKBONE AND NON-INTERFACIAL SIDE CHAINS OF POUS;    
REMARK   3  (3) BACKBONE AND NON-INTERFACIAL SIDE CHAINS OF SOX2 + B.P. 1-4     
REMARK   3  OF THE DNA; (4) THE AXIS OF THE DIPOLAR COUPLING ALIGNMENT          
REMARK   3  TENSOR. RIGID BODIES 1-3 HAVE ROTATIONAL AND TRANSLATIONAL          
REMARK   3  DEGREES OF FREEDOM, WHILE RIGID BODY 4 IS GIVEN ONLY ROTATIONAL     
REMARK   3  DEGREES OF FREEDOM. THE FOLLOWING SIDE CHAINS WERE GIVEN            
REMARK   3  TORSIONAL DEGREES OF FREEDOM: (1) POUHD: 10 RESIDUES AT POUHD-      
REMARK   3  DNA INTERFACE (RESIDUES 107, 108, 113, 144, 147, 148, 151, 154,     
REMARK   3  155 AND 158) WITH 24 SIDE C                                         
REMARK   3  AIN TORSION ANGLES RESTRAINED TO WITHIN A RANGE OF +/-20 DEGREES    
REMARK   3  OF VALUES IN BINARY OCT1/DNA COMPLEXES (2) POUS: (A) 6 RESIDUES     
REMARK   3  AT POUS/SOX2 INTERFACE (RESIDUES 14, 17, 18, 21, 26 AND 52); (B)    
REMARK   3  14 RESIDUES AT POUS/DNA INTERFACE (RESIDUES 20, 27, 41, 42, 44,     
REMARK   3  45, 46, 48, 49, 54, 58, 59, 62 AND 63) WITH 35 SIDE CHAIN           
REMARK   3  TORSION ANGLES RESTRAINED TO WITHIN A RANGE OF +/-20 DEGREES OF     
REMARK   3  VALUES IN BINARY OCT1/DNA COMPLEXES (3) SOX2: (A) 7 RESIDUES AT     
REMARK   3  POUS/SOX2 INTERFACE (RESIDUES 59, 62, 63, 66, 67, 71,               
REMARK   3  73); (B) 18 RESIDUES AT SOX2/DNA INTERFACE (RESIDUES 4, 6, 7, 8,    
REMARK   3  9, 10, 12, 13 17, 31, 35, 43, 44, 51, 55, 76, 78, 79) WITH 35       
REMARK   3  SIDE CHAIN TORSION ANGLES RESTRAINED TO WITHIN A RANGE OF +/-20     
REMARK   3  DEGREES OF VALUES IN BINARY SRY/DNA COMPLEXES. BASE PAIRS 5-16      
REMARK   3  OF THE DNA WERE GIVEN TORSIONAL DEGREES OF FREEDOM WITH 220         
REMARK   3  LOOSE BACKBONE PHOSPHODIESTER TORSION ANGLE RESTRAINTS TO           
REMARK   3  PREVENT LOCAL MIRROR IMAGES (MURPHY ET AL. (2001) J.MOL.BIOL.       
REMARK   3  312, 481-499).                                                      
REMARK   3  THE NUMBERING SYSTEM IS AS FOLLOWS:                                 
REMARK   3      OCT1 POUS DOMAIN: 5-79                                          
REMARK   3      OCT1 POUHD DOMAIN: 110-163                                      
REMARK   3      SOX-2 HMG-BOX: 206-282                                          
REMARK   3  RESIDUES 1-4, 80-109, 201-205 AND 283-288 ARE DISORDERED            
REMARK   3  IN SOLUTION AND THUS NOT INCLUDED IN THE COORDINATES.               
REMARK   3                                                                      
REMARK   3  IN THIS ENTRY THE LAST COLUMN REPRESENTS THE AVERAGE RMS            
REMARK   3  DIFFERENCE BETWEEN THE INDIVIDUAL SIMULATED ANNEALING               
REMARK   3  STRUCTURES AND THE MEAN COORDINATE POSITIONS. IT IS                 
REMARK   3  IMPORTANT TO NOTE THAT SINCE THE BACKBONE AND NON-                  
REMARK   3  INTERFACIAL SIECHAINS OF THE THREE PROTEIN DOMAINS ARE              
REMARK   3  TREATED AS RIGID BODIES, THESE NUMBERS DO NOT TAKE INTO             
REMARK   3  ACCOUNT THE ERRORS IN THE X-RAY COORDINATES OF OCT1 OR              
REMARK   3  THE NMR COORDINATES OF THE HOMOLOGOUS SRY.                          
REMARK   3                                                                      
REMARK   3  RESIDUE NUMBERING: THIS FOLLOWS THE NUMBERING USED                  
REMARK   3  PREVIOUS STRUCTURAL WORK ON THE BINARY OCT1/DNA                     
REMARK   3  COMPLEX (KLEMM ET AL. (1994) CELL 77, 21-32;                        
REMARK   3  REMENYI ET AL. MOL.CELL (2001) 8, 569-580);                         
REMARK   3  AND THE BINARY SRY/DNA COMPLEX  (MURPHY ET AL.                      
REMARK   3  (2001) J.MOL.BIOL. 312, 481-499).                                   
REMARK   3                                                                      
REMARK   3  THE SIDECHAINS OF K18, Q22, K262, R265 AND K276 ARE IN              
REMARK   3  MULTIPLE CONFORMATIONS.                                             
REMARK   3                                                                      
REMARK   3  EXPERIMENTAL NMR RESTRAINTS:                                        
REMARK   3    RESIDUAL DIPOLAR COUPLINGS: 345                                   
REMARK   3      (1) SOX2: 51 NH, 39 NC', 49 CAC'                                
REMARK   3      (2) POUS: 39 NH, 33 NC', 34 CAC'                                
REMARK   3      (3) POUHD: 39 NH, 34 NC', 27 CAC'                               
REMARK   3    INTERMOLECULAR NOE-DERIVED INTERPROTON DISTANCE                   
REMARK   3    RESTRAINTS:                                                       
REMARK   3      67 (16, 48 AND 3 AT POUS/SOX2, SOX2/DNA                         
REMARK   3        AND POUHD/DNA INTERFACES)                                     
REMARK   3    TORSION ANGLE RESTRAINTS: 21                                      
REMARK   3        (18 AT POUS/SOX2 INTERFACE AND 3 AT SOX2/DNA                  
REMARK   3  INTERFACE).                                                         
REMARK   3  NH DIPOLAR COUPLING R-FACTORS                                       
REMARK   3              TERNARY COMPLEX  INDIVIDUAL DOMAINS                     
REMARK   3    SOX2         17.7%           16.5%                                
REMARK   3    POUS         16.7%           16.2%                                
REMARK   3    POUHD        17.7%           17.5%                                
REMARK   3    (THE VALUES GIVEN FOR THE INDIVIDUAL DOMAINS                      
REMARK   3    ARE CALCULATED USING A SEPARATED ALIGNMENT                        
REMARK   3    TENSOR FOR EACH DOMAIN AND ARE SIMPLY LISTED                      
REMARK   3    FOR REFERENCE. THE VALUES FOR THE TERNARY                         
REMARK   3    COMPLEX (USING THE RESTRAINED REGULARIZED MEAN                    
REMARK   3    COORDINATES) MAKE USE OF A SINGLE ALIGNMENT                       
REMARK   3    TENSOR FOR THE ENTIRE COMPLEX).                                   
REMARK   3  NON-EXPERIMENTAL RESTRAINTS:                                        
REMARK   3    (1) 220 LOOSE TORSION ANGLE RESTRAINTS FOR THE                    
REMARK   3     SUGAR-PHOSPHATE BACKBONE                                         
REMARK   3    (2) 106 LOOSE TORSION ANGLE RESTRAINTS FOR SIDE CHAINS            
REMARK   3        AT PROTEIN-DNA INTERFACES                                     
REMARK   3    (3) 35 LOOSE DISTANCE RESTRAINTS AT THE POUS/DNA AND              
REMARK   3        POUHD/DNA INTERFACES TO PRESERVE HYDROGEN BONDING             
REMARK   3        INTERCATIONS AND SALT BRIDGES TO BASES AND PHOSPHATES         
REMARK   3    (4) WEAK NCS RESTRAINT TO PROVIDE A TRANSLATIONAL RESTRANT        
REMARK   3        BETWEEN POUS AND POUHD.                                       
REMARK   4                                                                      
REMARK   4 1O4X COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-JUL-03.                  
REMARK 100 THE RCSB ID CODE IS RCSB001808.                                      
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 303.00                             
REMARK 210  PH                             : 6.50                               
REMARK 210  IONIC STRENGTH                 : 10 MM SODIUM PHOSPHATE             
REMARK 210  PRESSURE                       : NULL                               
REMARK 210  SAMPLE CONTENTS                : NULL                               
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : 1) TRIPLE RESONANCE FOR            
REMARK 210                                   ASSIGNMENT OF PROTEIN, (2)         
REMARK 210                                   QUANTITATIVE J CORRELATION FOR     
REMARK 210                                   COUPLING CONSTANTS, (3) 3D         
REMARK 210                                   HETERONUCLEAR SEPARATED,           
REMARK 210                                   FILTERED NOE EXPTS, (4) IPAP       
REMARK 210                                   EXPERIMENTS, TRIPLE RESONANC       
REMARK 210                                   FOR DIPOLAR COUPLINGS. DIPOLAR     
REMARK 210                                   COUPLINGS WERE MEASURED IN         
REMARK 210                                   PHAGE PF1                          
REMARK 210  SPECTROMETER FIELD STRENGTH    : 500 MHZ, 600 MHZ, 750 MHZ,         
REMARK 210                                   800 MHZ                            
REMARK 210  SPECTROMETER MODEL             : DMX500, DMX600, DRX600,            
REMARK 210                                   DRX750, DRX800                     
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : NULL                               
REMARK 210   METHOD USED                   : CONJOINED RIGID BODY/TORSION       
REMARK 210                                   ANGLE DYNAMICS                     
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 100                                
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 1                                  
REMARK 210 CONFORMERS, SELECTION CRITERIA  : REGULARIZED MEAN STRUCTURE         
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 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     RES C SSSEQI                                                     
REMARK 465     GLY A     1                                                      
REMARK 465     SER A     2                                                      
REMARK 465     HIS A     3                                                      
REMARK 465     MET A     4                                                      
REMARK 465     ASN A    80                                                      
REMARK 465     LEU A    81                                                      
REMARK 465     SER A    82                                                      
REMARK 465     SER A    83                                                      
REMARK 465     ASP A    84                                                      
REMARK 465     SER A    85                                                      
REMARK 465     SER A    86                                                      
REMARK 465     LEU A    87                                                      
REMARK 465     SER A    88                                                      
REMARK 465     SER A    89                                                      
REMARK 465     PRO A    90                                                      
REMARK 465     SER A    91                                                      
REMARK 465     ALA A    92                                                      
REMARK 465     LEU A    93                                                      
REMARK 465     ASN A    94                                                      
REMARK 465     SER A    95                                                      
REMARK 465     PRO A    96                                                      
REMARK 465     GLY A    97                                                      
REMARK 465     ILE A    98                                                      
REMARK 465     GLU A    99                                                      
REMARK 465     GLY A   100                                                      
REMARK 465     LEU A   101                                                      
REMARK 465     SER A   102                                                      
REMARK 465     GLU A   103                                                      
REMARK 465     ARG A   104                                                      
REMARK 465     ARG A   105                                                      
REMARK 465     LYS A   106                                                      
REMARK 465     LYS A   107                                                      
REMARK 465     ARG A   108                                                      
REMARK 465     THR A   109                                                      
REMARK 465     PRO A   164                                                      
REMARK 465     PRO A   165                                                      
REMARK 465     SER A   166                                                      
REMARK 465     SER A   167                                                      
REMARK 465     GLY B   201                                                      
REMARK 465     SER B   202                                                      
REMARK 465     HIS B   203                                                      
REMARK 465     MET B   204                                                      
REMARK 465     PRO B   205                                                      
REMARK 465     THR B   283                                                      
REMARK 465     LYS B   284                                                      
REMARK 465     THR B   285                                                      
REMARK 465     LEU B   286                                                      
REMARK 465     MET B   287                                                      
REMARK 465     LYS B   288                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS(RES=RESIDUE NAME;          
REMARK 470 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 470     RES CSSEQI  ATOMS                                                
REMARK 470     GLU A   5    CG   CD   OE1  OE2                                  
REMARK 470     GLU A  79    O                                                   
REMARK 470     LYS A 121    CG   CD   CE   NZ                                   
REMARK 470     LYS A 128    CG   CD   CE   NZ                                   
REMARK 470     GLU A 132    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 145    CG   CD   CE   NZ                                   
REMARK 470     ASN A 163    O                                                   
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   OE2  GLU B   251     NH1  ARG B   255              1.54            
REMARK 500   NE2  GLN A    31     O    GLN A    48              1.62            
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     DA C 311   N1  -  C2  -  N3  ANGL. DEV. =  -3.0 DEGREES          
REMARK 500     DA D 321   N1  -  C2  -  N3  ANGL. DEV. =  -3.1 DEGREES          
REMARK 500     DT D 322   C6  -  C5  -  C7  ANGL. DEV. =  -3.8 DEGREES          
REMARK 500     DA D 324   N1  -  C2  -  N3  ANGL. DEV. =  -3.1 DEGREES          
REMARK 500     DA D 330   N1  -  C2  -  N3  ANGL. DEV. =  -3.1 DEGREES          
REMARK 500     DA D 332   N1  -  C2  -  N3  ANGL. DEV. =  -3.2 DEGREES          
REMARK 500     DA D 333   N1  -  C2  -  N3  ANGL. DEV. =  -3.0 DEGREES          
REMARK 500     DA D 334   N1  -  C2  -  N3  ANGL. DEV. =  -3.0 DEGREES          
REMARK 500     DA D 336   N1  -  C2  -  N3  ANGL. DEV. =  -3.2 DEGREES          
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    ARG A 155         0.09    SIDE_CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1O4X A    5   167  UNP    P14859   PO2F1_HUMAN    303    465             
DBREF  1O4X B  206   288  UNP    P48431   SOX2_HUMAN      39    121             
DBREF  1O4X C  301   319  PDB    1O4X     1O4X           301    319             
DBREF  1O4X D  320   338  PDB    1O4X     1O4X           320    338             
SEQADV 1O4X GLY A    1  UNP  P14859              CLONING ARTIFACT               
SEQADV 1O4X SER A    2  UNP  P14859              CLONING ARTIFACT               
SEQADV 1O4X HIS A    3  UNP  P14859              CLONING ARTIFACT               
SEQADV 1O4X MET A    4  UNP  P14859              CLONING ARTIFACT               
SEQADV 1O4X ALA A   65  UNP  P14859    CYS   363 ENGINEERED                     
SEQADV 1O4X GLY B  201  UNP  P48431              CLONING ARTIFACT               
SEQADV 1O4X SER B  202  UNP  P48431              CLONING ARTIFACT               
SEQADV 1O4X HIS B  203  UNP  P48431              CLONING ARTIFACT               
SEQADV 1O4X MET B  204  UNP  P48431              CLONING ARTIFACT               
SEQADV 1O4X PRO B  205  UNP  P48431              CLONING ARTIFACT               
SEQRES   1 A  167  GLY SER HIS MET GLU GLU PRO SER ASP LEU GLU GLU LEU          
SEQRES   2 A  167  GLU GLN PHE ALA LYS THR PHE LYS GLN ARG ARG ILE LYS          
SEQRES   3 A  167  LEU GLY PHE THR GLN GLY ASP VAL GLY LEU ALA MET GLY          
SEQRES   4 A  167  LYS LEU TYR GLY ASN ASP PHE SER GLN THR THR ILE SER          
SEQRES   5 A  167  ARG PHE GLU ALA LEU ASN LEU SER PHE LYS ASN MET ALA          
SEQRES   6 A  167  LYS LEU LYS PRO LEU LEU GLU LYS TRP LEU ASN ASP ALA          
SEQRES   7 A  167  GLU ASN LEU SER SER ASP SER SER LEU SER SER PRO SER          
SEQRES   8 A  167  ALA LEU ASN SER PRO GLY ILE GLU GLY LEU SER GLU ARG          
SEQRES   9 A  167  ARG LYS LYS ARG THR SER ILE GLU THR ASN ILE ARG VAL          
SEQRES  10 A  167  ALA LEU GLU LYS SER PHE LEU GLU ASN GLN LYS PRO THR          
SEQRES  11 A  167  SER GLU GLU ILE THR MET ILE ALA ASP GLN LEU ASN MET          
SEQRES  12 A  167  GLU LYS GLU VAL ILE ARG VAL TRP PHE CYS ASN ARG ARG          
SEQRES  13 A  167  GLN LYS GLU LYS ARG ILE ASN PRO PRO SER SER                  
SEQRES   1 B   88  GLY SER HIS MET PRO ASP ARG VAL LYS ARG PRO MET ASN          
SEQRES   2 B   88  ALA PHE MET VAL TRP SER ARG GLY GLN ARG ARG LYS MET          
SEQRES   3 B   88  ALA GLN GLU ASN PRO LYS MET HIS ASN SER GLU ILE SER          
SEQRES   4 B   88  LYS ARG LEU GLY ALA GLU TRP LYS LEU LEU SER GLU THR          
SEQRES   5 B   88  GLU LYS ARG PRO PHE ILE ASP GLU ALA LYS ARG LEU ARG          
SEQRES   6 B   88  ALA LEU HIS MET LYS GLU HIS PRO ASP TYR LYS TYR ARG          
SEQRES   7 B   88  PRO ARG ARG LYS THR LYS THR LEU MET LYS                      
SEQRES   1 C   19   DT  DG  DT  DC  DT  DT  DT  DG  DT  DC  DA  DT  DG          
SEQRES   2 C   19   DC  DT  DA  DA  DT  DG                                      
SEQRES   1 D   19   DC  DA  DT  DT  DA  DG  DC  DA  DT  DG  DA  DC  DA          
SEQRES   2 D   19   DA  DA  DG  DA  DC  DA                                      
HELIX    1   1 ASP A    9  LEU A   27  1                                  19    
HELIX    2   2 THR A   30  GLY A   43  1                                  14    
HELIX    3   3 SER A   47  LEU A   57  1                                  11    
HELIX    4   4 SER A   60  GLU A   79  1                                  20    
HELIX    5   5 GLU A  112  ASN A  126  1                                  15    
HELIX    6   6 THR A  130  ASN A  142  1                                  13    
HELIX    7   7 GLU A  144  LYS A  160  1                                  17    
HELIX    8   8 ASN B  213  ASN B  230  1                                  18    
HELIX    9   9 HIS B  234  LYS B  247  1                                  14    
HELIX   10  10 SER B  250  HIS B  272  1                                  23    
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