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Database: PDB
Entry: 3U1A
LinkDB: 3U1A
Original site: 3U1A 
HEADER    CONTRACTILE PROTEIN                     29-SEP-11   3U1A              
TITLE     N-TERMINAL 81-AA FRAGMENT OF SMOOTH MUSCLE TROPOMYOSIN ALPHA          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: SMOOTH MUSCLE TROPOMYOSIN ALPHA;                           
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 FRAGMENT: UNP RESIDUES 1-81;                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: GALLUS GALLUS;                                  
SOURCE   3 ORGANISM_COMMON: BANTAM,CHICKENS;                                    
SOURCE   4 ORGANISM_TAXID: 9031;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3);                                
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PTYB12                                    
KEYWDS    MUSCLE CONTRACTION, ACTIN, CONTRACTILE PROTEIN                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    N.JAMPANI,R.DOMINGUEZ                                                 
REVDAT   3   28-FEB-24 3U1A    1       SEQADV                                   
REVDAT   2   04-SEP-13 3U1A    1       JRNL                                     
REVDAT   1   23-NOV-11 3U1A    0                                                
JRNL        AUTH   J.N.RAO,R.RIVERA-SANTIAGO,X.E.LI,W.LEHMAN,R.DOMINGUEZ        
JRNL        TITL   STRUCTURAL ANALYSIS OF SMOOTH MUSCLE TROPOMYOSIN ALPHA AND   
JRNL        TITL 2 BETA ISOFORMS.                                               
JRNL        REF    J.BIOL.CHEM.                  V. 287  3165 2012              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   22119916                                                     
JRNL        DOI    10.1074/JBC.M111.307330                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.6.4_486)                    
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 39.52                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 95.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 24909                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.225                           
REMARK   3   R VALUE            (WORKING SET) : 0.222                           
REMARK   3   FREE R VALUE                     : 0.265                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.030                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1253                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 39.5263 -  4.1588    0.99     2895   154  0.2174 0.2548        
REMARK   3     2  4.1588 -  3.3015    0.99     2782   147  0.1977 0.2414        
REMARK   3     3  3.3015 -  2.8843    0.98     2708   144  0.2243 0.2598        
REMARK   3     4  2.8843 -  2.6206    0.97     2664   141  0.2350 0.2620        
REMARK   3     5  2.6206 -  2.4328    0.96     2626   139  0.2388 0.3029        
REMARK   3     6  2.4328 -  2.2894    0.95     2599   138  0.2346 0.2671        
REMARK   3     7  2.2894 -  2.1748    0.93     2516   134  0.2226 0.3229        
REMARK   3     8  2.1748 -  2.0801    0.90     2446   131  0.2512 0.2739        
REMARK   3     9  2.0801 -  2.0000    0.89     2420   125  0.2647 0.3328        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : 0.31                                          
REMARK   3   B_SOL              : 41.19                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.260            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 27.930           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 7.04700                                              
REMARK   3    B22 (A**2) : 0.87710                                              
REMARK   3    B33 (A**2) : -7.92410                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.009           2668                                  
REMARK   3   ANGLE     :  0.935           3557                                  
REMARK   3   CHIRALITY :  0.073            396                                  
REMARK   3   PLANARITY :  0.003            483                                  
REMARK   3   DIHEDRAL  : 19.956           1098                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 4                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: CHAIN A                                                
REMARK   3    ORIGIN FOR THE GROUP (A):  20.6208   7.2301   9.4895              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3572 T22:   0.1265                                     
REMARK   3      T33:   0.0768 T12:  -0.0071                                     
REMARK   3      T13:   0.0175 T23:  -0.0198                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.5054 L22:   0.2741                                     
REMARK   3      L33:   0.4462 L12:  -0.0130                                     
REMARK   3      L13:  -0.4230 L23:  -0.1551                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.1329 S12:  -0.1263 S13:   0.0621                       
REMARK   3      S21:  -0.0563 S22:  -0.0529 S23:  -0.0351                       
REMARK   3      S31:  -0.2759 S32:  -0.0765 S33:   0.0161                       
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: CHAIN B                                                
REMARK   3    ORIGIN FOR THE GROUP (A):  21.3412   5.7147  12.5096              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3554 T22:   0.1153                                     
REMARK   3      T33:   0.0692 T12:  -0.0408                                     
REMARK   3      T13:   0.0008 T23:  -0.0100                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.3589 L22:   0.2513                                     
REMARK   3      L33:   0.2926 L12:  -0.0838                                     
REMARK   3      L13:  -0.1470 L23:   0.1360                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0669 S12:  -0.1629 S13:  -0.0278                       
REMARK   3      S21:  -0.0493 S22:  -0.0412 S23:   0.0028                       
REMARK   3      S31:  -0.0221 S32:   0.2866 S33:   0.0149                       
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    SELECTION: CHAIN C                                                
REMARK   3    ORIGIN FOR THE GROUP (A):   2.7816  24.0430  -6.9616              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3760 T22:   0.1085                                     
REMARK   3      T33:   0.0846 T12:   0.0142                                     
REMARK   3      T13:   0.0159 T23:   0.0274                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.1899 L22:   0.3474                                     
REMARK   3      L33:   0.2013 L12:   0.0405                                     
REMARK   3      L13:  -0.1529 L23:   0.0410                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0462 S12:   0.0691 S13:   0.0632                       
REMARK   3      S21:  -0.0515 S22:  -0.0046 S23:   0.0282                       
REMARK   3      S31:  -0.0771 S32:   0.1637 S33:  -0.0967                       
REMARK   3   TLS GROUP : 4                                                      
REMARK   3    SELECTION: CHAIN D                                                
REMARK   3    ORIGIN FOR THE GROUP (A):   1.9941  22.5574  -9.0760              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.4431 T22:   0.1859                                     
REMARK   3      T33:   0.1151 T12:   0.0522                                     
REMARK   3      T13:  -0.0088 T23:   0.0011                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0474 L22:   0.3014                                     
REMARK   3      L33:   0.3543 L12:   0.0630                                     
REMARK   3      L13:   0.1427 L23:  -0.3619                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0908 S12:   0.0846 S13:   0.0440                       
REMARK   3      S21:  -0.0864 S22:   0.0829 S23:   0.0463                       
REMARK   3      S31:   0.2006 S32:   0.0182 S33:  -0.1232                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3U1A COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-OCT-11.                  
REMARK 100 THE DEPOSITION ID IS D_1000068179.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-NOV-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 4.4                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 17-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9795                             
REMARK 200  MONOCHROMATOR                  : SI (111)                           
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 25949                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.9                               
REMARK 200  DATA REDUNDANCY                : 12.05                              
REMARK 200  R MERGE                    (I) : 0.10580                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.5900                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.10                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.2                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 10.40                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.41980                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 4.520                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: PHENIX AUTOSOL                                        
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 49.71                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.45                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M SODIUM ACETATE, PH 4.4, 20 MM      
REMARK 280  CALCIUM CHLORIDE, 30-33 % 2-METHYL-2,4-PENTANEDIOL , VAPOR          
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 293K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       29.38400            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       50.64950            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       31.59050            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       50.64950            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       29.38400            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       31.59050            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3                                                 
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3550 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 12220 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -36.0 KCAL/MOL                        
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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3440 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 12270 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -34.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D                                  
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 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 8780 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 22700 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -83.0 KCAL/MOL                        
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 350 APPLY THE FOLLOWING TO CHAINS: C, D                                  
REMARK 350   BIOMT1   2  1.000000  0.000000  0.000000       29.38400            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       31.59050            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000     -101.29900            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     ALA A    -2                                                      
REMARK 465     GLY A    -1                                                      
REMARK 465     ALA D    -2                                                      
REMARK 465     GLY D    -1                                                      
REMARK 465     LYS D    80                                                      
REMARK 465     ALA D    81                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     HIS A   0    CG   ND1  CD2  CE1  NE2                             
REMARK 470     HIS D   0    CG   ND1  CD2  CE1  NE2                             
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH C   104     O    HOH C   152              1.81            
REMARK 500   O    HOH A   203     O    HOH B   216              1.82            
REMARK 500   O    HOH C   121     O    HOH C   159              1.83            
REMARK 500   O    HOH A    85     O    HOH A   148              1.85            
REMARK 500   OD2  ASP A    69     O    HOH A    89              1.85            
REMARK 500   O    HOH A   179     O    HOH A   183              1.89            
REMARK 500   O    ALA A    18     O    HOH A   178              1.89            
REMARK 500   OE1  GLU B    62     O    HOH B   200              1.89            
REMARK 500   O    HOH A    98     O    HOH A   164              1.93            
REMARK 500   NH1  ARG C    51     O    HOH C   154              1.93            
REMARK 500   O    HOH C    89     O    HOH C   173              1.96            
REMARK 500   NE   ARG A    21     O    HOH A   196              2.00            
REMARK 500   NH2  ARG D    35     O    HOH D   188              2.01            
REMARK 500   O    HOH C   186     O    HOH C   193              2.04            
REMARK 500   O    HOH A   182     O    HOH C   174              2.05            
REMARK 500   OE1  GLU B    26     O    HOH B    83              2.06            
REMARK 500   OD1  ASP D    42     O    HOH D   184              2.07            
REMARK 500   CZ   ARG A    21     O    HOH A   196              2.07            
REMARK 500   NZ   LYS D    29     O    HOH D   105              2.08            
REMARK 500   O    HOH D   197     O    HOH D   213              2.10            
REMARK 500   O    HOH A   162     O    HOH C   214              2.11            
REMARK 500   O    HOH B   189     O    HOH B   210              2.12            
REMARK 500   O    ALA A     3     O    HOH A    99              2.13            
REMARK 500   NE2  HIS B    65     O    HOH B   176              2.14            
REMARK 500   CB   ARG A    21     O    HOH A   178              2.14            
REMARK 500   O    HOH C    98     O    HOH C   163              2.14            
REMARK 500   O    ASP C    20     OE1  GLU C    23              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH B   200     O    HOH C    89     4555     1.96            
REMARK 500   OE1  GLN A    45     O    HOH D    85     4555     1.98            
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    HIS B   0     -162.11    141.17                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3U1C   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3U59   RELATED DB: PDB                                   
DBREF  3U1A A    1    81  UNP    P04268   P04268           1     81             
DBREF  3U1A B    1    81  UNP    P04268   P04268           1     81             
DBREF  3U1A C    1    81  UNP    P04268   P04268           1     81             
DBREF  3U1A D    1    81  UNP    P04268   P04268           1     81             
SEQADV 3U1A ALA A   -2  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A GLY A   -1  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A HIS A    0  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A ALA B   -2  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A GLY B   -1  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A HIS B    0  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A ALA C   -2  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A GLY C   -1  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A HIS C    0  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A ALA D   -2  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A GLY D   -1  UNP  P04268              EXPRESSION TAG                 
SEQADV 3U1A HIS D    0  UNP  P04268              EXPRESSION TAG                 
SEQRES   1 A   84  ALA GLY HIS MET ASP ALA ILE LYS LYS LYS MET GLN MET          
SEQRES   2 A   84  LEU LYS LEU ASP LYS GLU ASN ALA LEU ASP ARG ALA GLU          
SEQRES   3 A   84  GLN ALA GLU ALA ASP LYS LYS ALA ALA GLU GLU ARG SER          
SEQRES   4 A   84  LYS GLN LEU GLU ASP ASP ILE VAL GLN LEU GLU LYS GLN          
SEQRES   5 A   84  LEU ARG VAL THR GLU ASP SER ARG ASP GLN VAL LEU GLU          
SEQRES   6 A   84  GLU LEU HIS LYS SER GLU ASP SER LEU LEU PHE ALA GLU          
SEQRES   7 A   84  GLU ASN ALA ALA LYS ALA                                      
SEQRES   1 B   84  ALA GLY HIS MET ASP ALA ILE LYS LYS LYS MET GLN MET          
SEQRES   2 B   84  LEU LYS LEU ASP LYS GLU ASN ALA LEU ASP ARG ALA GLU          
SEQRES   3 B   84  GLN ALA GLU ALA ASP LYS LYS ALA ALA GLU GLU ARG SER          
SEQRES   4 B   84  LYS GLN LEU GLU ASP ASP ILE VAL GLN LEU GLU LYS GLN          
SEQRES   5 B   84  LEU ARG VAL THR GLU ASP SER ARG ASP GLN VAL LEU GLU          
SEQRES   6 B   84  GLU LEU HIS LYS SER GLU ASP SER LEU LEU PHE ALA GLU          
SEQRES   7 B   84  GLU ASN ALA ALA LYS ALA                                      
SEQRES   1 C   84  ALA GLY HIS MET ASP ALA ILE LYS LYS LYS MET GLN MET          
SEQRES   2 C   84  LEU LYS LEU ASP LYS GLU ASN ALA LEU ASP ARG ALA GLU          
SEQRES   3 C   84  GLN ALA GLU ALA ASP LYS LYS ALA ALA GLU GLU ARG SER          
SEQRES   4 C   84  LYS GLN LEU GLU ASP ASP ILE VAL GLN LEU GLU LYS GLN          
SEQRES   5 C   84  LEU ARG VAL THR GLU ASP SER ARG ASP GLN VAL LEU GLU          
SEQRES   6 C   84  GLU LEU HIS LYS SER GLU ASP SER LEU LEU PHE ALA GLU          
SEQRES   7 C   84  GLU ASN ALA ALA LYS ALA                                      
SEQRES   1 D   84  ALA GLY HIS MET ASP ALA ILE LYS LYS LYS MET GLN MET          
SEQRES   2 D   84  LEU LYS LEU ASP LYS GLU ASN ALA LEU ASP ARG ALA GLU          
SEQRES   3 D   84  GLN ALA GLU ALA ASP LYS LYS ALA ALA GLU GLU ARG SER          
SEQRES   4 D   84  LYS GLN LEU GLU ASP ASP ILE VAL GLN LEU GLU LYS GLN          
SEQRES   5 D   84  LEU ARG VAL THR GLU ASP SER ARG ASP GLN VAL LEU GLU          
SEQRES   6 D   84  GLU LEU HIS LYS SER GLU ASP SER LEU LEU PHE ALA GLU          
SEQRES   7 D   84  GLU ASN ALA ALA LYS ALA                                      
FORMUL   5  HOH   *216(H2 O)                                                    
HELIX    1   1 HIS A    0  ALA A   81  1                                  82    
HELIX    2   2 HIS B    0  ALA B   81  1                                  82    
HELIX    3   3 ASP C    2  ALA C   81  1                                  80    
HELIX    4   4 MET D    1  ALA D   79  1                                  79    
CRYST1   58.768   63.181  101.299  90.00  90.00  90.00 P 21 21 21   16          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.017016  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.015828  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009872        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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