HEADER    TRANSFERASE                             04-NOV-10   2XWL              
TITLE     CRYSTAL STRUCTURE OF ISPD FROM MYCOBACTERIUM SMEGMATIS IN COMPLEX WITH
TITLE    2 CTP AND MG                                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 2-C-METHYL-D-ERYTHRITOL 4-PHOSPHATE CYTIDYLYLTRANSFERASE;  
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: RESIDUES 1-219;                                            
COMPND   5 SYNONYM: 4-DIPHOSPHOCYTIDYL-2C-METHYL-D-ERYTHRITOL SYNTHASE, MEP     
COMPND   6 CYTIDYLYL TRANSFERASE, CDP-ME SYNTHETASE, ISPD;                      
COMPND   7 EC: 2.7.7.60;                                                        
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM SMEGMATIS;                        
SOURCE   3 ORGANISM_TAXID: 1772;                                                
SOURCE   4 STRAIN: MC2;                                                         
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE   8 EXPRESSION_SYSTEM_VARIANT: AI;                                       
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PEXP5CT/TOPO                              
KEYWDS    TRANSFERASE, MEP PATHWAY                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.BJORKELID,T.BERGFORS,T.UNGE,T.A.JONES                               
REVDAT   5   20-DEC-23 2XWL    1       REMARK LINK                              
REVDAT   4   15-MAY-19 2XWL    1       REMARK                                   
REVDAT   3   06-MAR-19 2XWL    1       REMARK                                   
REVDAT   2   01-FEB-12 2XWL    1       JRNL   REMARK VERSN                      
REVDAT   1   27-APR-11 2XWL    0                                                
JRNL        AUTH   C.BJORKELID,T.BERGFORS,L.M.HENRIKSSON,A.L.STERN,T.UNGE,      
JRNL        AUTH 2 S.L.MOWBRAY,T.A.JONES                                        
JRNL        TITL   STRUCTURAL AND FUNCTIONAL STUDIES ON MYCOBACTERIAL ISPD      
JRNL        TITL 2 ENZYMES                                                      
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  67   403 2011              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   21543842                                                     
JRNL        DOI    10.1107/S0907444911006160                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.49 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.6.0060                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.49                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 61.95                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 61154                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.186                           
REMARK   3   R VALUE            (WORKING SET) : 0.185                           
REMARK   3   FREE R VALUE                     : 0.210                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3262                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.49                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.53                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 4441                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.26                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2290                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 239                          
REMARK   3   BIN FREE R VALUE                    : 0.2540                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3166                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 60                                      
REMARK   3   SOLVENT ATOMS            : 470                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 23.05                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 1.08000                                              
REMARK   3    B22 (A**2) : -0.84000                                             
REMARK   3    B33 (A**2) : -0.24000                                             
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  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.079         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.079         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.047         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.203         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.962                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.952                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3309 ; 0.008 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4547 ; 1.290 ; 2.000       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   449 ; 5.173 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   113 ;36.703 ;23.009       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   473 ;11.769 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    26 ;14.620 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   563 ; 0.073 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2472 ; 0.006 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN USED IF PRESENT IN    
REMARK   3  THE INPUT.                                                          
REMARK   4                                                                      
REMARK   4 2XWL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 04-NOV-10.                  
REMARK 100 THE DEPOSITION ID IS D_1290046086.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-FEB-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 110                                
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-4                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0045                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 64486                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.490                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 38.500                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.6                               
REMARK 200  DATA REDUNDANCY                : 7.600                              
REMARK 200  R MERGE                    (I) : 0.06000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 18.6000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.49                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.57                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 7.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.41000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.300                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1VGT                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.23                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: SITTING-DROP VAPOR-DIFFUSION METHOD AT   
REMARK 280  293 K. DROPS WITH 300 NANOLITERS PROTEIN SOLUTION (PROTEIN AT 40    
REMARK 280  MG/ML IN 20 MM BIS-TRIS-PROPANE, PH 6.5, 0.1 M NACL WITH 10 MM      
REMARK 280  CTP AND 10 MM MGCL2) AND 300 NANOLITERS SCREENING/RESERVOIR         
REMARK 280  SOLUTION (10% (W/V) PEG 8000, 20% (V/V) ETHYLENE GLYCOL, 0.03 M     
REMARK 280  EACH OF DIETHYLENEGLYCOL, TRIETHYLENEGLYCOL, TETRAETHYLENEGLYCOL,   
REMARK 280  PENTAETHYLENEGLYCOL AND 0.1 M MES/IMIDAZOLE BUFFERS PH 6.5),        
REMARK 280  VAPOR DIFFUSION, SITTING DROP                                       
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       22.66500            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       58.59000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       36.49000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       58.59000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       22.66500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       36.49000            
REMARK 290   SMTRY3   4  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 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: 4650 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18300 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -32.5 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 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     MET A     1                                                      
REMARK 465     HIS A   223                                                      
REMARK 465     MET B     1                                                      
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    GLN A 157     -162.97   -129.73                                   
REMARK 500    ALA A 176      -25.88     67.20                                   
REMARK 500    GLN B 157     -160.85   -129.41                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2054        DISTANCE =  7.06 ANGSTROMS                       
REMARK 525    HOH A2059        DISTANCE =  6.06 ANGSTROMS                       
REMARK 525    HOH B2007        DISTANCE =  5.87 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 300  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CTP A 301   O1A                                                    
REMARK 620 2 CTP A 301   O1B  86.4                                              
REMARK 620 3 CTP A 301   O1G  89.1  88.5                                        
REMARK 620 4 HOH A2259   O    87.8 174.0  89.7                                  
REMARK 620 5 HOH A2260   O    85.8  90.4 174.8  90.9                            
REMARK 620 6 HOH A2264   O   177.4  93.9  93.5  92.0  91.6                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 300  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CTP B 301   O1B                                                    
REMARK 620 2 CTP B 301   O1G  89.7                                              
REMARK 620 3 CTP B 301   O1A  86.0  91.5                                        
REMARK 620 4 HOH B2198   O   172.7  93.5  87.4                                  
REMARK 620 5 HOH B2201   O    90.3 175.0  83.5  86.0                            
REMARK 620 6 HOH B2203   O    95.1  93.9 174.4  91.2  91.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 300                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CTP A 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 300                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CTP B 301                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2XWN   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF ISPD FROM MYCOBACTERIUM TUBERCULOSIS IN         
REMARK 900 COMPLEX WITH CTP AND MG                                              
REMARK 900 RELATED ID: 2XWM   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF ISPD FROM MYCOBACTERIUM SMEGMATIS IN COMPLEX    
REMARK 900 WITH CMP                                                             
DBREF  2XWL A    1   219  UNP    A0R560   A0R560_MYCS2     1    219             
DBREF  2XWL B    1   219  UNP    A0R560   A0R560_MYCS2     1    219             
SEQADV 2XWL HIS A  220  UNP  A0R560              EXPRESSION TAG                 
SEQADV 2XWL HIS A  221  UNP  A0R560              EXPRESSION TAG                 
SEQADV 2XWL HIS A  222  UNP  A0R560              EXPRESSION TAG                 
SEQADV 2XWL HIS A  223  UNP  A0R560              EXPRESSION TAG                 
SEQADV 2XWL HIS B  220  UNP  A0R560              EXPRESSION TAG                 
SEQADV 2XWL HIS B  221  UNP  A0R560              EXPRESSION TAG                 
SEQADV 2XWL HIS B  222  UNP  A0R560              EXPRESSION TAG                 
SEQADV 2XWL HIS B  223  UNP  A0R560              EXPRESSION TAG                 
SEQRES   1 A  223  MET ALA THR VAL ALA VAL VAL PRO ALA ALA GLY SER GLY          
SEQRES   2 A  223  GLU ARG LEU ARG ALA GLY ARG PRO LYS ALA PHE VAL THR          
SEQRES   3 A  223  LEU GLY GLY THR PRO LEU LEU GLU HIS ALA LEU SER GLY          
SEQRES   4 A  223  LEU ARG ALA SER GLY VAL ILE ASP ARG ILE VAL ILE ALA          
SEQRES   5 A  223  VAL PRO PRO ALA LEU THR ASP GLU SER LYS LEU VAL PHE          
SEQRES   6 A  223  GLY GLY GLU ASP SER VAL ILE VAL SER GLY GLY VAL ASP          
SEQRES   7 A  223  ARG THR GLU SER VAL ALA LEU ALA LEU GLU ALA ALA GLY          
SEQRES   8 A  223  ASP ALA GLU PHE VAL LEU VAL HIS ASP ALA ALA ARG ALA          
SEQRES   9 A  223  LEU THR PRO PRO ALA LEU ILE ALA ARG VAL VAL ALA ALA          
SEQRES  10 A  223  LEU LYS GLU GLY HIS SER ALA VAL VAL PRO GLY LEU ALA          
SEQRES  11 A  223  PRO ALA ASP THR ILE LYS ALA VAL ASP ALA ASN GLY ALA          
SEQRES  12 A  223  VAL LEU GLY THR PRO GLU ARG ALA GLY LEU ARG ALA VAL          
SEQRES  13 A  223  GLN THR PRO GLN GLY PHE HIS ALA ASP VAL LEU ARG ARG          
SEQRES  14 A  223  ALA TYR ALA ARG ALA THR ALA GLY GLY VAL THR ASP ASP          
SEQRES  15 A  223  ALA SER LEU VAL GLU GLN LEU GLY THR PRO VAL GLN ILE          
SEQRES  16 A  223  VAL ASP GLY ASP PRO LEU ALA PHE LYS ILE THR THR PRO          
SEQRES  17 A  223  LEU ASP LEU VAL LEU ALA GLU ALA VAL LEU ALA HIS HIS          
SEQRES  18 A  223  HIS HIS                                                      
SEQRES   1 B  223  MET ALA THR VAL ALA VAL VAL PRO ALA ALA GLY SER GLY          
SEQRES   2 B  223  GLU ARG LEU ARG ALA GLY ARG PRO LYS ALA PHE VAL THR          
SEQRES   3 B  223  LEU GLY GLY THR PRO LEU LEU GLU HIS ALA LEU SER GLY          
SEQRES   4 B  223  LEU ARG ALA SER GLY VAL ILE ASP ARG ILE VAL ILE ALA          
SEQRES   5 B  223  VAL PRO PRO ALA LEU THR ASP GLU SER LYS LEU VAL PHE          
SEQRES   6 B  223  GLY GLY GLU ASP SER VAL ILE VAL SER GLY GLY VAL ASP          
SEQRES   7 B  223  ARG THR GLU SER VAL ALA LEU ALA LEU GLU ALA ALA GLY          
SEQRES   8 B  223  ASP ALA GLU PHE VAL LEU VAL HIS ASP ALA ALA ARG ALA          
SEQRES   9 B  223  LEU THR PRO PRO ALA LEU ILE ALA ARG VAL VAL ALA ALA          
SEQRES  10 B  223  LEU LYS GLU GLY HIS SER ALA VAL VAL PRO GLY LEU ALA          
SEQRES  11 B  223  PRO ALA ASP THR ILE LYS ALA VAL ASP ALA ASN GLY ALA          
SEQRES  12 B  223  VAL LEU GLY THR PRO GLU ARG ALA GLY LEU ARG ALA VAL          
SEQRES  13 B  223  GLN THR PRO GLN GLY PHE HIS ALA ASP VAL LEU ARG ARG          
SEQRES  14 B  223  ALA TYR ALA ARG ALA THR ALA GLY GLY VAL THR ASP ASP          
SEQRES  15 B  223  ALA SER LEU VAL GLU GLN LEU GLY THR PRO VAL GLN ILE          
SEQRES  16 B  223  VAL ASP GLY ASP PRO LEU ALA PHE LYS ILE THR THR PRO          
SEQRES  17 B  223  LEU ASP LEU VAL LEU ALA GLU ALA VAL LEU ALA HIS HIS          
SEQRES  18 B  223  HIS HIS                                                      
HET     MG  A 300       1                                                       
HET    CTP  A 301      29                                                       
HET     MG  B 300       1                                                       
HET    CTP  B 301      29                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     CTP CYTIDINE-5'-TRIPHOSPHATE                                         
FORMUL   3   MG    2(MG 2+)                                                     
FORMUL   4  CTP    2(C9 H16 N3 O14 P3)                                          
FORMUL   7  HOH   *470(H2 O)                                                    
HELIX    1   1 GLY A   13  ARG A   17  5                                   5    
HELIX    2   2 PRO A   21  PHE A   24  5                                   4    
HELIX    3   3 LEU A   32  GLY A   44  1                                  13    
HELIX    4   4 PRO A   54  ALA A   56  5                                   3    
HELIX    5   5 LEU A   57  PHE A   65  1                                   9    
HELIX    6   6 ASP A   78  GLU A   88  1                                  11    
HELIX    7   7 PRO A  107  GLY A  121  1                                  15    
HELIX    8   8 GLU A  149  ALA A  151  5                                   3    
HELIX    9   9 ALA A  164  ALA A  172  1                                   9    
HELIX   10  10 ASP A  181  GLN A  188  1                                   8    
HELIX   11  11 ASP A  199  PHE A  203  5                                   5    
HELIX   12  12 THR A  207  HIS A  221  1                                  15    
HELIX   13  13 PRO B   21  PHE B   24  5                                   4    
HELIX   14  14 LEU B   32  SER B   43  1                                  12    
HELIX   15  15 PRO B   54  ALA B   56  5                                   3    
HELIX   16  16 LEU B   57  GLY B   66  1                                  10    
HELIX   17  17 ASP B   78  GLU B   88  1                                  11    
HELIX   18  18 PRO B  107  GLY B  121  1                                  15    
HELIX   19  19 GLU B  149  ALA B  151  5                                   3    
HELIX   20  20 ALA B  164  ALA B  172  1                                   9    
HELIX   21  21 ASP B  181  GLN B  188  1                                   8    
HELIX   22  22 ASP B  199  PHE B  203  5                                   5    
HELIX   23  23 THR B  207  HIS B  222  1                                  16    
SHEET    1  AA 9 SER A  70  SER A  74  0                                        
SHEET    2  AA 9 ARG A  48  VAL A  53  1  O  ILE A  49   N  VAL A  71           
SHEET    3  AA 9 THR A   3  PRO A   8  1  O  ALA A   5   N  VAL A  50           
SHEET    4  AA 9 PHE A  95  VAL A  98  1  O  PHE A  95   N  VAL A   4           
SHEET    5  AA 9 GLN A 160  HIS A 163 -1  O  GLN A 160   N  VAL A  98           
SHEET    6  AA 9 ALA A 124  LEU A 129 -1  O  VAL A 125   N  GLY A 161           
SHEET    7  AA 9 LEU A 153  VAL A 156 -1  O  ALA A 155   N  LEU A 129           
SHEET    8  AA 9 ILE B 135  VAL B 138 -1  O  LYS B 136   N  ARG A 154           
SHEET    9  AA 9 VAL B 144  GLY B 146 -1  N  LEU B 145   O  ALA B 137           
SHEET    1  AB 7 SER A  70  SER A  74  0                                        
SHEET    2  AB 7 ARG A  48  VAL A  53  1  O  ILE A  49   N  VAL A  71           
SHEET    3  AB 7 THR A   3  PRO A   8  1  O  ALA A   5   N  VAL A  50           
SHEET    4  AB 7 PHE A  95  VAL A  98  1  O  PHE A  95   N  VAL A   4           
SHEET    5  AB 7 GLN A 160  HIS A 163 -1  O  GLN A 160   N  VAL A  98           
SHEET    6  AB 7 ALA A 124  LEU A 129 -1  O  VAL A 125   N  GLY A 161           
SHEET    7  AB 7 GLN A 194  ASP A 197 -1  O  GLN A 194   N  VAL A 126           
SHEET    1  AC 2 THR A  26  LEU A  27  0                                        
SHEET    2  AC 2 THR A  30  PRO A  31 -1  O  THR A  30   N  LEU A  27           
SHEET    1  AD 5 VAL A 144  GLY A 146  0                                        
SHEET    2  AD 5 ILE A 135  VAL A 138 -1  O  ALA A 137   N  LEU A 145           
SHEET    3  AD 5 LEU B 153  VAL B 156 -1  O  ARG B 154   N  LYS A 136           
SHEET    4  AD 5 ALA B 124  LEU B 129 -1  O  LEU B 129   N  ALA B 155           
SHEET    5  AD 5 GLN B 194  ASP B 197 -1  O  GLN B 194   N  VAL B 126           
SHEET    1  AE 9 VAL A 144  GLY A 146  0                                        
SHEET    2  AE 9 ILE A 135  VAL A 138 -1  O  ALA A 137   N  LEU A 145           
SHEET    3  AE 9 LEU B 153  VAL B 156 -1  O  ARG B 154   N  LYS A 136           
SHEET    4  AE 9 ALA B 124  LEU B 129 -1  O  LEU B 129   N  ALA B 155           
SHEET    5  AE 9 GLN B 160  HIS B 163 -1  O  GLY B 161   N  VAL B 125           
SHEET    6  AE 9 PHE B  95  VAL B  98 -1  O  VAL B  96   N  PHE B 162           
SHEET    7  AE 9 THR B   3  PRO B   8  1  O  VAL B   4   N  LEU B  97           
SHEET    8  AE 9 ARG B  48  VAL B  53  1  O  ARG B  48   N  ALA B   5           
SHEET    9  AE 9 SER B  70  SER B  74  1  O  VAL B  71   N  ILE B  51           
SHEET    1  BA 2 GLN B 194  ASP B 197  0                                        
SHEET    2  BA 2 ALA B 124  LEU B 129 -1  O  ALA B 124   N  GLN B 194           
SHEET    1  BB 2 THR B  26  LEU B  27  0                                        
SHEET    2  BB 2 THR B  30  PRO B  31 -1  O  THR B  30   N  LEU B  27           
LINK        MG    MG A 300                 O1A CTP A 301     1555   1555  2.07  
LINK        MG    MG A 300                 O1B CTP A 301     1555   1555  2.10  
LINK        MG    MG A 300                 O1G CTP A 301     1555   1555  2.06  
LINK        MG    MG A 300                 O   HOH A2259     1555   1555  2.16  
LINK        MG    MG A 300                 O   HOH A2260     1555   1555  2.13  
LINK        MG    MG A 300                 O   HOH A2264     1555   1555  2.03  
LINK        MG    MG B 300                 O1B CTP B 301     1555   1555  2.07  
LINK        MG    MG B 300                 O1G CTP B 301     1555   1555  1.99  
LINK        MG    MG B 300                 O1A CTP B 301     1555   1555  2.13  
LINK        MG    MG B 300                 O   HOH B2198     1555   1555  2.11  
LINK        MG    MG B 300                 O   HOH B2201     1555   1555  2.29  
LINK        MG    MG B 300                 O   HOH B2203     1555   1555  2.04  
CISPEP   1 THR A  158    PRO A  159          0         5.53                     
CISPEP   2 THR B  158    PRO B  159          0         3.10                     
SITE     1 AC1  4 CTP A 301  HOH A2259  HOH A2260  HOH A2264                    
SITE     1 AC2 29 PRO A   8  ALA A   9  ALA A  10  GLY A  11                    
SITE     2 AC2 29 SER A  12  GLY A  13  GLU A  14  ARG A  15                    
SITE     3 AC2 29 LYS A  22  GLY A  76  VAL A  77  ASP A  78                    
SITE     4 AC2 29 ARG A  79  SER A  82  ASP A 100  ALA A 101                    
SITE     5 AC2 29 ALA A 102  LYS A 204   MG A 300  HOH A2044                    
SITE     6 AC2 29 HOH A2122  HOH A2259  HOH A2260  HOH A2261                    
SITE     7 AC2 29 HOH A2262  HOH A2263  HOH A2264  HOH A2265                    
SITE     8 AC2 29 HOH A2266                                                     
SITE     1 AC3  4 CTP B 301  HOH B2198  HOH B2201  HOH B2203                    
SITE     1 AC4 27 PRO B   8  ALA B   9  ALA B  10  GLY B  11                    
SITE     2 AC4 27 SER B  12  GLY B  13  GLU B  14  ARG B  15                    
SITE     3 AC4 27 LYS B  22  GLY B  76  VAL B  77  ASP B  78                    
SITE     4 AC4 27 ARG B  79  SER B  82  ASP B 100  ALA B 101                    
SITE     5 AC4 27 ALA B 102  LYS B 204   MG B 300  HOH B2195                    
SITE     6 AC4 27 HOH B2197  HOH B2198  HOH B2199  HOH B2200                    
SITE     7 AC4 27 HOH B2201  HOH B2202  HOH B2203                               
CRYST1   45.330   72.980  117.180  90.00  90.00  90.00 P 21 21 21    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      0.022060  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.013702  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008534        0.00000                         
MTRIX1   1 -0.758600  0.622300  0.193200      -26.34360    1                    
MTRIX2   1  0.637000  0.646000  0.420600       -2.12200    1                    
MTRIX3   1  0.137000  0.442100 -0.886400       45.96730    1