HEADER    RNA                                     30-MAY-16   5K8H              
TITLE     THE X-RAY CRYSTAL STRUCTURE OF A PARALLEL POLY(RA) DOUBLE HELIX       
TITLE    2 GENERATED BY RA7 AT ACIDIC PH                                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RNA 7-MER;                                                 
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE   4 ORGANISM_TAXID: 32630                                                
KEYWDS    PARALLEL DOUBLE-HELIX POLY(RA) ACIDIC PH ADENINE N1 PROTONATION, RNA  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.L.GLEGHORN,L.E.MAQUAT                                               
REVDAT   8   27-SEP-23 5K8H    1       REMARK                                   
REVDAT   7   04-DEC-19 5K8H    1       REMARK                                   
REVDAT   6   20-SEP-17 5K8H    1       JRNL   REMARK                            
REVDAT   5   12-OCT-16 5K8H    1       JRNL                                     
REVDAT   4   17-AUG-16 5K8H    1       SEQRES HET                               
REVDAT   3   20-JUL-16 5K8H    1       REMARK                                   
REVDAT   2   13-JUL-16 5K8H    1       JRNL                                     
REVDAT   1   06-JUL-16 5K8H    0                                                
JRNL        AUTH   M.L.GLEGHORN,J.ZHAO,D.H.TURNER,L.E.MAQUAT                    
JRNL        TITL   CRYSTAL STRUCTURE OF A POLY(RA) STAGGERED ZIPPER AT ACIDIC   
JRNL        TITL 2 PH: EVIDENCE THAT ADENINE N1 PROTONATION MEDIATES PARALLEL   
JRNL        TITL 3 DOUBLE HELIX FORMATION.                                      
JRNL        REF    NUCLEIC ACIDS RES.            V.  44  8417 2016              
JRNL        REFN                   ESSN 1362-4962                               
JRNL        PMID   27288442                                                     
JRNL        DOI    10.1093/NAR/GKW526                                           
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.07 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (1.10.1_2155: ???)                            
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 : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.07                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 15.03                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 1619                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.106                           
REMARK   3   R VALUE            (WORKING SET) : 0.106                           
REMARK   3   FREE R VALUE                     : 0.108                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.020                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 146                             
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  1.1070 -  1.0690    0.00        0     0  0.3180 0.3975        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : NULL                                          
REMARK   3   SOLVENT RADIUS     : NULL                                          
REMARK   3   SHRINKAGE RADIUS   : NULL                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : NULL             
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : NULL             
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) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
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      :   NULL           NULL                                  
REMARK   3   ANGLE     :   NULL           NULL                                  
REMARK   3   CHIRALITY :   NULL           NULL                                  
REMARK   3   PLANARITY :   NULL           NULL                                  
REMARK   3   DIHEDRAL  :   NULL           NULL                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
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 5K8H COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-JUN-16.                  
REMARK 100 THE DEPOSITION ID IS D_1000221863.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 22-MAR-15                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 3.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL12-2                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.95530                            
REMARK 200  MONOCHROMATOR                  : NULL                               
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          : AIMLESS                            
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 1679                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.069                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 21.250                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.6                               
REMARK 200  DATA REDUNDANCY                : 19.30                              
REMARK 200  R MERGE                    (I) : 0.12700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 15.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.07                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.14                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 87.2                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 8.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 1.05900                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.100                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHENIX                                                
REMARK 200 STARTING MODEL: RA2 SECTION OF THE 4JRD                              
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 8.00                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.33                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: RA7 DISSOLVED IN WATER TO 10 MM AND      
REMARK 280  WAS DILUTED 1/10 V/V IN 0.75% PEG 1000. ONE UL OF THIS WAS MIXED    
REMARK 280  WITH 1 UL OF THE FOLLOWING RESERVOIR SOLUTION: (0.24 M AMMONIUM     
REMARK 280  SULFATE AND 0.06 M CITRIC ACID PH 3.5) TO GENERATE A HANGING        
REMARK 280  DROP OVER 1 ML OF THIS RESERVOIR SOLUTION., VAPOR DIFFUSION,        
REMARK 280  HANGING DROP, TEMPERATURE 293.15K                                   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 42 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -Y+1/2,X+1/2,Z+1/2                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/2                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/2                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-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        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       10.62650            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       10.62650            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        7.47300            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       10.62650            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       10.62650            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000        7.47300            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       10.62650            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       10.62650            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        7.47300            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       10.62650            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       10.62650            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000        7.47300            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THE ASYMMETRIC UNIT IS RA2, HOWEVER THE INPUT RNA POLYMER    
REMARK 300 IS RA7, AND THIS FORMS A CONTINUAL PARALLEL POLY(RA) DOUBLE HELIX    
REMARK 300 STRUCTURE. THIS STRUCTURE IS REFERRED TO AS A "STAGGERED ZIPPER"     
REMARK 300 SINCE THE RA7 STRANDS OVERLAP IN A MANY DIFFERENT REGISTERS          
REMARK 300 RELATIVE TO THEIR OPPOSITE, PAIRED STRANDS, TO FORM THE HELIX.       
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                                     
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: A                                     
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000       63.75900            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000      -42.50600            
REMARK 350   BIOMT3   2  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. (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       A A     0                                                      
REMARK 465       A A     3                                                      
REMARK 465       A A     4                                                      
REMARK 465       A A     5                                                      
REMARK 465       A A     6                                                      
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   P      A A     1     O3'    A A     2     4754     1.63            
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      A A   1   O5'     A A   1   C5'    -0.071                       
REMARK 500      A A   1   O3'     A A   1   C3'    -0.090                       
REMARK 500      A A   1   C2'     A A   1   O2'     0.087                       
REMARK 500      A A   1   N1      A A   1   C2      0.075                       
REMARK 500      A A   1   C6      A A   1   N6     -0.104                       
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      A A   1   N9  -  C1' -  C2' ANGL. DEV. =  -9.4 DEGREES          
REMARK 500      A A   1   C6  -  N1  -  C2  ANGL. DEV. =   8.2 DEGREES          
REMARK 500      A A   1   N1  -  C2  -  N3  ANGL. DEV. =  -6.9 DEGREES          
REMARK 500      A A   1   C4  -  C5  -  C6  ANGL. DEV. =   5.9 DEGREES          
REMARK 500      A A   1   C5  -  C6  -  N1  ANGL. DEV. = -10.8 DEGREES          
REMARK 500      A A   1   C6  -  C5  -  N7  ANGL. DEV. =  -4.6 DEGREES          
REMARK 500      A A   1   C5  -  C6  -  N6  ANGL. DEV. =   7.6 DEGREES          
REMARK 500      A A   2   N7  -  C8  -  N9  ANGL. DEV. =  -3.1 DEGREES          
REMARK 500      A A   2   C8  -  N9  -  C4  ANGL. DEV. =   3.6 DEGREES          
REMARK 500      A A   2   N9  -  C4  -  C5  ANGL. DEV. =  -2.5 DEGREES          
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 NH4 A 101                 
DBREF  5K8H A    0     6  PDB    5K8H     5K8H             0      6             
SEQRES   1 A    7    A   A   A   A   A   A   A                                  
HET    NH4  A 101       1                                                       
HETNAM     NH4 AMMONIUM ION                                                     
FORMUL   2  NH4    H4 N 1+                                                      
FORMUL   3  HOH   *8(H2 O)                                                      
SITE     1 AC1  2   A A   1    A A   2                                          
CRYST1   21.253   21.253   14.946  90.00  90.00  90.00 P 42 21 2     8          
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      0.047053  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.047053  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.066908        0.00000                         
ATOM      1  P     A A   1      28.742 -16.458   5.094  1.00 24.60           P  
ANISOU    1  P     A A   1     4886   2944   1516   1750    212     -1       P  
ATOM      2  OP1   A A   1      28.458 -15.384   6.081  1.00 29.35           O  
ANISOU    2  OP1   A A   1     5904   3412   1834   1966    413     25       O  
ATOM      3  OP2   A A   1      30.221 -16.843   5.039  0.94 21.82           O  
ANISOU    3  OP2   A A   1     4600   2347   1342   1221   -381   -180       O  
ATOM      4  O5'   A A   1      27.850 -17.815   5.246  0.83 21.42           O  
ANISOU    4  O5'   A A   1     3732   2644   1761   1453    993    624       O  
ATOM      5  C5'   A A   1      26.513 -17.680   5.364  1.00 23.87           C  
ANISOU    5  C5'   A A   1     3684   3607   1779   1741    887    717       C  
ATOM      6  C4'   A A   1      25.784 -18.967   5.247  1.00 24.23           C  
ANISOU    6  C4'   A A   1     2847   4071   2290   1347    628    539       C  
ATOM      7  O4'   A A   1      26.211 -19.548   4.003  1.00 25.07           O  
ANISOU    7  O4'   A A   1     3085   4813   1629   1358    284    642       O  
ATOM      8  C3'   A A   1      26.203 -20.000   6.364  1.00 20.17           C  
ANISOU    8  C3'   A A   1     2364   4166   1133    706    189    104       C  
ATOM      9  O3'   A A   1      25.475 -19.877   7.467  1.00 20.55           O  
ANISOU    9  O3'   A A   1     2277   3886   1645    610    312    513       O  
ATOM     10  C2'   A A   1      25.941 -21.239   5.604  1.00 22.79           C  
ANISOU   10  C2'   A A   1     1889   5194   1576    841    275    754       C  
ATOM     11  O2'   A A   1      24.472 -21.576   5.596  1.00 28.45           O  
ANISOU   11  O2'   A A   1     2991   6070   1749     84    189    705       O  
ATOM     12  C1'   A A   1      26.328 -20.917   4.184  1.00 22.56           C  
ANISOU   12  C1'   A A   1     2189   4634   1749    521     44    303       C  
ATOM     13  N9    A A   1      27.811 -21.349   4.133  1.00 17.39           N  
ANISOU   13  N9    A A   1     2563   2837   1206    297    336    436       N  
ATOM     14  C8    A A   1      28.831 -20.502   4.030  1.00 16.65           C  
ANISOU   14  C8    A A   1     2813   2290   1223    373    358    387       C  
ATOM     15  N7    A A   1      30.020 -21.108   4.084  1.00 15.64           N  
ANISOU   15  N7    A A   1     2411   2418   1113    263     53    156       N  
ATOM     16  C5    A A   1      29.721 -22.471   4.185  1.00 14.96           C  
ANISOU   16  C5    A A   1     2230   2581    873   -312     59    116       C  
ATOM     17  C6    A A   1      30.620 -23.538   4.340  1.00 16.26           C  
ANISOU   17  C6    A A   1     3411   1870    897    104    236     55       C  
ATOM     18  N6    A A   1      31.850 -23.565   4.370  1.00 16.19           N  
ANISOU   18  N6    A A   1     2497   2424   1231    394    157     49       N  
ATOM     19  N1    A A   1      29.855 -24.694   4.475  1.00 19.86           N  
ANISOU   19  N1    A A   1     3628   2629   1287   -512    183     24       N  
ATOM     20  C2    A A   1      28.444 -24.785   4.436  1.00 22.78           C  
ANISOU   20  C2    A A   1     5039   2226   1391  -1145     31    112       C  
ATOM     21  N3    A A   1      27.680 -23.737   4.311  1.00 20.13           N  
ANISOU   21  N3    A A   1     3423   2754   1472   -750     46     63       N  
ATOM     22  C4    A A   1      28.375 -22.634   4.203  1.00 17.28           C  
ANISOU   22  C4    A A   1     3097   2464   1005   -414    -55    148       C  
ATOM     23  H5'   A A   1      26.198 -17.080   4.670  1.00 28.65           H  
ATOM     24 H5''   A A   1      26.315 -17.288   6.229  1.00 28.65           H  
ATOM     25  H4'   A A   1      24.825 -18.824   5.249  1.00 29.08           H  
ATOM     26  H3'   A A   1      27.148 -19.918   6.565  1.00 24.20           H  
ATOM     27  H2'   A A   1      26.467 -21.977   5.948  1.00 27.35           H  
ATOM     28  H1'   A A   1      25.789 -21.412   3.547  1.00 27.07           H  
ATOM     29  H8    A A   1      28.728 -19.580   3.966  1.00 19.98           H  
ATOM     30  H61   A A   1      32.298 -22.836   4.284  1.00 19.43           H  
ATOM     31  H62   A A   1      32.261 -24.313   4.477  1.00 19.43           H  
ATOM     32  H2    A A   1      28.046 -25.621   4.527  1.00 27.34           H  
ATOM     33  P     A A   2      26.177 -20.207   8.847  0.82 15.69           P  
ANISOU   33  P     A A   2     2030   2576   1357    107    238    168       P  
ATOM     34  OP1   A A   2      25.160 -19.887   9.892  0.99 19.66           O  
ANISOU   34  OP1   A A   2     2498   3111   1860    111    483    238       O  
ATOM     35  OP2   A A   2      27.462 -19.537   8.915  0.90 17.35           O  
ANISOU   35  OP2   A A   2     2342   2298   1953     34    311     96       O  
ATOM     36  O5'   A A   2      26.554 -21.785   8.763  0.95 15.49           O  
ANISOU   36  O5'   A A   2     1873   2382   1629   -190    205    -75       O  
ATOM     37  C5'   A A   2      25.522 -22.805   8.848  1.00 18.49           C  
ANISOU   37  C5'   A A   2     1942   3515   1568   -303     66     10       C  
ATOM     38  C4'   A A   2      26.087 -24.195   8.834  1.00 17.40           C  
ANISOU   38  C4'   A A   2     1936   2998   1679   -728    -12     87       C  
ATOM     39  O4'   A A   2      26.885 -24.351   7.651  1.00 15.30           O  
ANISOU   39  O4'   A A   2     2018   2412   1384   -473    -76    -23       O  
ATOM     40  C3'   A A   2      27.086 -24.542   9.961  1.00 17.98           C  
ANISOU   40  C3'   A A   2     2398   3352   1081  -1206    -37    236       C  
ATOM     41  O3'   A A   2      26.418 -24.816  11.136  1.00 21.68           O  
ANISOU   41  O3'   A A   2     2575   4322   1340  -1388    -50    254       O  
ATOM     42  C2'   A A   2      27.913 -25.629   9.327  1.00 17.69           C  
ANISOU   42  C2'   A A   2     2722   2791   1209  -1180    -44    298       C  
ATOM     43  O2'   A A   2      27.187 -26.864   9.412  1.00 20.81           O  
ANISOU   43  O2'   A A   2     3300   2992   1614  -1403   -512    622       O  
ATOM     44  C1'   A A   2      28.022 -25.156   7.925  1.00 15.37           C  
ANISOU   44  C1'   A A   2     2290   2042   1509   -753   -248    147       C  
ATOM     45  N9    A A   2      29.259 -24.313   7.832  1.00 14.59           N  
ANISOU   45  N9    A A   2     2261   2126   1158   -409    -49    -91       N  
ATOM     46  C8    A A   2      29.299 -22.932   7.728  1.00 14.12           C  
ANISOU   46  C8    A A   2     2173   2067   1124   -535      8      5       C  
ATOM     47  N7    A A   2      30.524 -22.502   7.782  1.00 12.38           N  
ANISOU   47  N7    A A   2     1729   1823   1153   -122     43     20       N  
ATOM     48  C5    A A   2      31.297 -23.657   7.901  1.00 11.91           C  
ANISOU   48  C5    A A   2     1754   1866    906   -164    137     -8       C  
ATOM     49  C6    A A   2      32.653 -23.819   8.079  1.00 12.06           C  
ANISOU   49  C6    A A   2     1679   1926    978   -110    211     50       C  
ATOM     50  N6    A A   2      33.547 -22.889   8.117  1.00 13.45           N  
ANISOU   50  N6    A A   2     1834   2041   1237     61     89     79       N  
ATOM     51  N1    A A   2      33.088 -25.114   8.198  1.00 14.25           N  
ANISOU   51  N1    A A   2     2026   2056   1332     98     58    121       N  
ATOM     52  C2    A A   2      32.238 -26.088   8.206  1.00 16.50           C  
ANISOU   52  C2    A A   2     2554   2374   1341   -173     12     12       C  
ATOM     53  N3    A A   2      30.968 -26.040   8.020  1.00 16.39           N  
ANISOU   53  N3    A A   2     2942   1784   1500   -403    -26    -34       N  
ATOM     54  C4    A A   2      30.524 -24.794   7.923  1.00 13.65           C  
ANISOU   54  C4    A A   2     2115   1949   1122   -373    -38    -31       C  
ATOM     55  H5'   A A   2      24.919 -22.704   8.095  1.00 22.19           H  
ATOM     56 H5''   A A   2      25.022 -22.678   9.670  1.00 22.19           H  
ATOM     57  H4'   A A   2      25.364 -24.842   8.827  1.00 20.89           H  
ATOM     58  H3'   A A   2      27.658 -23.773  10.110  1.00 21.57           H  
ATOM     59  H2'   A A   2      28.785 -25.698   9.746  1.00 21.23           H  
ATOM     60  H1'   A A   2      28.069 -25.906   7.312  1.00 18.45           H  
ATOM     61  H8    A A   2      28.550 -22.386   7.656  1.00 16.94           H  
ATOM     62  H61   A A   2      33.313 -22.065   8.046  1.00 16.15           H  
ATOM     63  H62   A A   2      34.377 -23.094   8.214  1.00 16.15           H  
ATOM     64  H2    A A   2      32.603 -26.941   8.276  1.00 19.80           H  
TER      65        A A   2                                                      
HETATM   66  N   NH4 A 101      28.160 -16.919   8.687  1.00 18.54           N  
ANISOU   66  N   NH4 A 101     2121   2249   2673    502    390    -21       N  
HETATM   67  O   HOH A 201      22.257 -20.229   6.259  1.00 56.51           O  
ANISOU   67  O   HOH A 201     5406   4594  11470    792   -530     49       O  
HETATM   68  O   HOH A 202      32.736 -15.465   4.861  1.00 30.00           O  
ANISOU   68  O   HOH A 202     3799   3799   3799      0      0      0       O  
HETATM   69  O   HOH A 203      29.662 -14.244  10.152  1.00 50.40           O  
ANISOU   69  O   HOH A 203     3361   4370  11417    602    412   -435       O  
HETATM   70  O   HOH A 204      21.631 -19.785   4.553  0.31 30.00           O  
ANISOU   70  O   HOH A 204     3799   3799   3799      0      0      0       O  
HETATM   71  O   HOH A 205      31.276 -13.308   6.544  1.00 52.34           O  
ANISOU   71  O   HOH A 205     7151   8003   4733    129    436   1014       O  
HETATM   72  O   HOH A 206      22.811 -22.674  11.547  1.00 61.79           O  
ANISOU   72  O   HOH A 206     7653   7169   8654  -2297     35   2180       O  
HETATM   73  O   HOH A 207      31.109 -29.792   9.480  1.00 64.56           O  
ANISOU   73  O   HOH A 207     7917   6020  10593   2636  -4759  -2422       O  
HETATM   74  O   HOH A 208      28.797 -28.959   6.149  1.00 33.52           O  
ANISOU   74  O   HOH A 208     2946   6175   3615    -97    461  -1078       O  
MASTER      303    0    1    0    0    0    1    6   53    1    0    1          
END                                                                             
