PDB Short entry for 1L4E HEADER TRANSFERASE 06-MAR-02 1L4E TITLE THE CRYSTAL STRUCTURE OF COBT COMPLEXED WITH ALPHA-RIBAZOLE-5'- TITLE 2 PHOSPHATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: NICOTINATE-NUCLEOTIDE--DIMETHYLBENZIMIDAZOLE COMPND 3 PHOSPHORIBOSYLTRANSFERASE; COMPND 4 CHAIN: A; COMPND 5 SYNONYM: COBT; NN:DBI PRT; N1-ALPHA-PHOSPHORIBOSYLTRANSFERASE; COMPND 6 NICOTINATE MONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLE COMPND 7 PHOSPHORIBOSYLTRANSFERASE; COMPND 8 EC: 2.4.2.21; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SALMONELLA ENTERICA; SOURCE 3 ORGANISM_TAXID: 28901; SOURCE 4 GENE: COBT; SOURCE 5 EXPRESSION_SYSTEM: SALMONELLA ENTERICA; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 28901; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: JE2461; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PT7-5 KEYWDS COBT, COBALAMIN SYNTHETIC ENZYME, PHOSPHORIBOSYLTRANSFERASE, 5, 6- KEYWDS 2 DIMETHYLBENZIMIDAZOLE, NICOTINATE MONONUCLEOTIDE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR C.-G.CHEONG,J.ESCALANTE-SEMERENA,I.RAYMENT REVDAT 6 16-AUG-23 1L4E 1 REMARK SEQADV REVDAT 5 15-JUN-16 1L4E 1 JRNL REVDAT 4 13-JUL-11 1L4E 1 VERSN REVDAT 3 24-FEB-09 1L4E 1 VERSN REVDAT 2 01-APR-03 1L4E 1 JRNL REVDAT 1 07-SEP-02 1L4E 0 JRNL AUTH C.G.CHEONG,J.C.ESCALANTE-SEMERENA,I.RAYMENT JRNL TITL CAPTURE OF A LABILE SUBSTRATE BY EXPULSION OF WATER JRNL TITL 2 MOLECULES FROM THE ACTIVE SITE OF NICOTINATE JRNL TITL 3 MONONUCLEOTIDE:5,6-DIMETHYLBENZIMIDAZOLE JRNL TITL 4 PHOSPHORIBOSYLTRANSFERASE (COBT) FROM SALMONELLA ENTERICA. JRNL REF J.BIOL.CHEM. V. 277 41120 2002 JRNL REFN ISSN 0021-9258 JRNL PMID 12101181 JRNL DOI 10.1074/JBC.M203535200 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 500.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 20503 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 SET) : 0.180 REMARK 3 FREE R VALUE : 0.218 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1013 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2435 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 107 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.330 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1L4E COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-MAR-02. REMARK 100 THE DEPOSITION ID IS D_1000015630. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 278 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : DOUBLE FOCUSING MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS HI-STAR REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20503 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.9 REMARK 200 DATA REDUNDANCY : 3.100 REMARK 200 R MERGE (I) : 0.04900 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 13.2000 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) : 2.06 REMARK 200 COMPLETENESS FOR SHELL (%) : 68.1 REMARK 200 DATA REDUNDANCY IN SHELL : 1.90 REMARK 200 R MERGE FOR SHELL (I) : 0.15700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 1D0S REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.39 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM PHOSPHATE AT PH 6.0, VAPOR REMARK 280 DIFFUSION, HANGING DROP AT 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 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 -X+1/2,Y+1/2,-Z 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 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 -1.000000 0.000000 0.000000 35.96000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 44.98500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 35.96000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 44.98500 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A DIMER GENERATED FROM ONE REMARK 300 MONOMER IN ASYMMETRIC UNIT BY CRYSTALLOGRAPHIC TWO-FOLD AXIS 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 5600 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 21560 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -33.0 KCAL/MOL 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 BIOMT1 2 -1.000000 0.000000 0.000000 71.92000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 89.97000 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 MET A 1 REMARK 465 GLN A 2 REMARK 465 GLU A 350 REMARK 465 GLY A 351 REMARK 465 ASN A 352 REMARK 465 ALA A 353 REMARK 465 ASN A 354 REMARK 465 ALA A 355 REMARK 465 THR A 356 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 THR A 3 OG1 CG2 REMARK 470 HIS A 5 CG ND1 CD2 CE1 NE2 REMARK 470 GLN A 24 CG CD OE1 NE2 REMARK 470 LYS A 109 CG CD CE NZ REMARK 470 ARG A 157 CG CD NE CZ NH1 NH2 REMARK 470 ASP A 161 CG OD1 OD2 REMARK 470 ARG A 165 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 196 CG CD CE NZ REMARK 470 ILE A 201 CG1 CG2 CD1 REMARK 470 PRO A 207 CG CD REMARK 470 ARG A 209 CG CD NE CZ NH1 NH2 REMARK 470 ASP A 215 CG OD1 OD2 REMARK 470 ARG A 229 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 306 CG CD OE1 OE2 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 LEU A 30 72.37 -66.12 REMARK 500 MET A 128 28.82 -140.18 REMARK 500 ASP A 263 -111.41 -118.97 REMARK 500 SER A 288 -77.84 -111.26 REMARK 500 ARG A 314 32.61 -150.84 REMARK 500 GLU A 317 -8.70 72.34 REMARK 500 ASN A 345 19.75 59.88 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 RBZ A 990 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1D0S RELATED DB: PDB REMARK 900 COBT COMPLEXED WITH 5,6-DIMETHYLBENZIMIDAZOLE REMARK 900 RELATED ID: 1L4B RELATED DB: PDB REMARK 900 RELATED ID: 1L4F RELATED DB: PDB REMARK 900 RELATED ID: 1L4G RELATED DB: PDB REMARK 900 RELATED ID: 1L4H RELATED DB: PDB REMARK 900 RELATED ID: 1L4K RELATED DB: PDB REMARK 900 RELATED ID: 1L4L RELATED DB: PDB REMARK 900 RELATED ID: 1L4M RELATED DB: PDB REMARK 900 RELATED ID: 1L4N RELATED DB: PDB REMARK 900 RELATED ID: 1L5F RELATED DB: PDB REMARK 900 RELATED ID: 1L5K RELATED DB: PDB REMARK 900 RELATED ID: 1L5L RELATED DB: PDB REMARK 900 RELATED ID: 1L5M RELATED DB: PDB REMARK 900 RELATED ID: 1L5N RELATED DB: PDB REMARK 900 RELATED ID: 1L5O RELATED DB: PDB DBREF 1L4E A 1 356 UNP Q05603 COBT_SALTY 1 356 SEQADV 1L4E THR A 159 UNP Q05603 ALA 159 CONFLICT SEQRES 1 A 356 MET GLN THR LEU HIS ALA LEU LEU ARG ASP ILE PRO ALA SEQRES 2 A 356 PRO ASP ALA GLU ALA MET ALA ARG THR GLN GLN HIS ILE SEQRES 3 A 356 ASP GLY LEU LEU LYS PRO PRO GLY SER LEU GLY ARG LEU SEQRES 4 A 356 GLU THR LEU ALA VAL GLN LEU ALA GLY MET PRO GLY LEU SEQRES 5 A 356 ASN GLY THR PRO GLN VAL GLY GLU LYS ALA VAL LEU VAL SEQRES 6 A 356 MET CYS ALA ASP HIS GLY VAL TRP ASP GLU GLY VAL ALA SEQRES 7 A 356 VAL SER PRO LYS ILE VAL THR ALA ILE GLN ALA ALA ASN SEQRES 8 A 356 MET THR ARG GLY THR THR GLY VAL CYS VAL LEU ALA ALA SEQRES 9 A 356 GLN ALA GLY ALA LYS VAL HIS VAL ILE ASP VAL GLY ILE SEQRES 10 A 356 ASP ALA GLU PRO ILE PRO GLY VAL VAL ASN MET ARG VAL SEQRES 11 A 356 ALA ARG GLY CYS GLY ASN ILE ALA VAL GLY PRO ALA MET SEQRES 12 A 356 SER ARG LEU GLN ALA GLU ALA LEU LEU LEU GLU VAL SER SEQRES 13 A 356 ARG TYR THR CYS ASP LEU ALA GLN ARG GLY VAL THR LEU SEQRES 14 A 356 PHE GLY VAL GLY GLU LEU GLY MET ALA ASN THR THR PRO SEQRES 15 A 356 ALA ALA ALA MET VAL SER VAL PHE THR GLY SER ASP ALA SEQRES 16 A 356 LYS GLU VAL VAL GLY ILE GLY ALA ASN LEU PRO PRO SER SEQRES 17 A 356 ARG ILE ASP ASN LYS VAL ASP VAL VAL ARG ARG ALA ILE SEQRES 18 A 356 ALA ILE ASN GLN PRO ASN PRO ARG ASP GLY ILE ASP VAL SEQRES 19 A 356 LEU SER LYS VAL GLY GLY PHE ASP LEU VAL GLY MET THR SEQRES 20 A 356 GLY VAL MET LEU GLY ALA ALA ARG CYS GLY LEU PRO VAL SEQRES 21 A 356 LEU LEU ASP GLY PHE LEU SER TYR SER ALA ALA LEU ALA SEQRES 22 A 356 ALA CYS GLN ILE ALA PRO ALA VAL ARG PRO TYR LEU ILE SEQRES 23 A 356 PRO SER HIS PHE SER ALA GLU LYS GLY ALA ARG ILE ALA SEQRES 24 A 356 LEU ALA HIS LEU SER MET GLU PRO TYR LEU HIS MET ALA SEQRES 25 A 356 MET ARG LEU GLY GLU GLY SER GLY ALA ALA LEU ALA MET SEQRES 26 A 356 PRO ILE VAL GLU ALA ALA CYS ALA MET PHE HIS ASN MET SEQRES 27 A 356 GLY GLU LEU ALA ALA SER ASN ILE VAL LEU PRO GLU GLY SEQRES 28 A 356 ASN ALA ASN ALA THR HET RBZ A 990 24 HETNAM RBZ ALPHA-RIBAZOLE-5'-PHOSPHATE FORMUL 2 RBZ C14 H19 N2 O7 P FORMUL 3 HOH *107(H2 O) HELIX 1 2 ASP A 15 GLY A 28 1 14 HELIX 2 3 LEU A 36 GLY A 48 1 13 HELIX 3 4 MET A 49 ASN A 53 5 5 HELIX 4 5 HIS A 70 GLY A 76 5 7 HELIX 5 6 ILE A 83 ARG A 94 1 12 HELIX 6 7 THR A 97 GLY A 107 1 11 HELIX 7 8 SER A 144 GLN A 164 1 21 HELIX 8 9 ASN A 179 GLY A 192 1 14 HELIX 9 10 ASP A 194 VAL A 199 1 6 HELIX 10 11 PRO A 206 SER A 208 5 3 HELIX 11 13 ASP A 230 GLY A 239 1 10 HELIX 12 14 GLY A 240 CYS A 256 1 17 HELIX 13 15 GLY A 264 ALA A 278 1 15 HELIX 14 16 PRO A 279 PRO A 283 5 5 HELIX 15 17 GLY A 295 SER A 304 1 10 HELIX 16 18 GLY A 318 MET A 338 1 21 HELIX 17 19 LEU A 341 ASN A 345 5 5 SHEET 1 A 6 VAL A 126 ASN A 127 0 SHEET 2 A 6 ALA A 108 GLY A 116 1 N ASP A 114 O VAL A 126 SHEET 3 A 6 GLU A 60 ALA A 68 1 N VAL A 63 O HIS A 111 SHEET 4 A 6 VAL A 167 LEU A 175 1 O GLY A 171 N LEU A 64 SHEET 5 A 6 VAL A 260 LEU A 261 1 O LEU A 261 N PHE A 170 SHEET 6 A 6 LEU A 285 ILE A 286 1 O ILE A 286 N VAL A 260 SSBOND 1 CYS A 160 CYS A 256 1555 1555 2.04 SITE 1 AC1 17 PRO A 32 ALA A 78 SER A 80 GLN A 88 SITE 2 AC1 17 GLU A 174 GLY A 176 MET A 177 ALA A 178 SITE 3 AC1 17 ASN A 179 THR A 180 GLY A 202 ALA A 203 SITE 4 AC1 17 LEU A 315 GLU A 317 HOH A1012 HOH A1013 SITE 5 AC1 17 HOH A1027 CRYST1 71.920 89.970 47.610 90.00 90.00 90.00 P 21 21 2 4 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 0.013904 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011115 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021004 0.00000