HEADER HYDROLASE 15-AUG-07 2QYL TITLE CRYSTAL STRUCTURE OF PDE4B2B IN COMPLEX WITH INHIBITOR NPV COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHOSPHODIESTERASE 4B, CAMP-SPECIFIC; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: THE CATALYTIC DOMAIN OF PDE4B2B WITH RESIDUES 152-487; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: PDE4B; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET15B KEYWDS PDE4B STRUCTURE, SELECTIVE INHIBITOR NVP, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR H.KE REVDAT 4 03-APR-24 2QYL 1 REMARK REVDAT 3 21-FEB-24 2QYL 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 2QYL 1 VERSN REVDAT 1 08-APR-08 2QYL 0 JRNL AUTH H.WANG,M.S.PENG,Y.CHEN,J.GENG,H.ROBINSON,M.D.HOUSLAY,J.CAI, JRNL AUTH 2 H.KE JRNL TITL STRUCTURES OF THE FOUR SUBFAMILIES OF PHOSPHODIESTERASE-4 JRNL TITL 2 PROVIDE INSIGHT INTO THE SELECTIVITY OF THEIR INHIBITORS. JRNL REF BIOCHEM.J. V. 408 193 2007 JRNL REFN ISSN 0264-6021 JRNL PMID 17727341 JRNL DOI 10.1042/BJ20070970 REMARK 2 REMARK 2 RESOLUTION. 1.95 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.2 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) : 1.95 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 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) (%) : 88.2 REMARK 3 NUMBER OF REFLECTIONS : 27655 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.213 REMARK 3 FREE R VALUE : 0.239 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2750 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 : 2706 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 31 REMARK 3 SOLVENT ATOMS : 68 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 42.90 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) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.070 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC 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 2QYL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-SEP-07. REMARK 100 THE DEPOSITION ID IS D_1000044207. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-JAN-07 REMARK 200 TEMPERATURE (KELVIN) : 277 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X29A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.1 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28299 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.950 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.8 REMARK 200 DATA REDUNDANCY : 13.30 REMARK 200 R MERGE (I) : 0.06400 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 13.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.95 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 61.6 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.32000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 5.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDE4B REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.97 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.73 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 12% PEG3350, 0.1M TRIS HCL PH 8.5, 35% REMARK 280 ETHYLENE GLYCOL, 200 MM MGCL2, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 43.91350 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 43.91350 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 45.87900 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 52.67650 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 45.87900 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 52.67650 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 43.91350 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 45.87900 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 52.67650 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 43.91350 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 45.87900 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 52.67650 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 CONTAINS ONE CATALYTIC DOMAIN OF PDE4B2B 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: MONOMERIC 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 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 GLN A 486 REMARK 465 SER A 487 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 ALA A 257 13.32 59.24 REMARK 500 LEU A 393 40.43 -108.64 REMARK 500 MET A 431 -17.24 82.75 REMARK 500 THR A 436 11.80 -142.38 REMARK 500 ILE A 450 -57.53 -122.15 REMARK 500 REMARK 500 REMARK: NULL 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 503 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 228 NE2 REMARK 620 2 ASP A 277 OD1 88.5 REMARK 620 3 HOH A 513 O 79.7 167.6 REMARK 620 4 HOH A 514 O 172.1 87.8 104.3 REMARK 620 5 HOH A 515 O 83.6 83.3 91.6 102.9 REMARK 620 6 HOH A 516 O 85.3 84.7 97.9 87.3 163.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 501 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 238 NE2 REMARK 620 2 HIS A 274 NE2 88.7 REMARK 620 3 ASP A 275 OD2 86.3 87.2 REMARK 620 4 ASP A 392 OD1 86.2 88.5 171.5 REMARK 620 5 HOH A 504 O 164.1 104.6 102.7 85.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 502 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 275 OD1 REMARK 620 2 HOH A 504 O 109.5 REMARK 620 3 HOH A 506 O 163.2 84.5 REMARK 620 4 HOH A 507 O 84.3 166.0 82.4 REMARK 620 5 HOH A 508 O 98.4 93.7 89.5 81.4 REMARK 620 6 HOH A 509 O 80.7 99.7 88.0 84.7 166.1 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 ZN A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 502 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 503 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NPV A 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2QYK RELATED DB: PDB REMARK 900 RELATED ID: 2QYM RELATED DB: PDB REMARK 900 RELATED ID: 2QYN RELATED DB: PDB DBREF 2QYL A 152 487 UNP Q5T3Z8 Q5T3Z8_HUMAN 152 487 SEQADV 2QYL MET A 151 UNP Q5T3Z8 INITIATING METHIONINE SEQRES 1 A 337 MET SER ILE SER ARG PHE GLY VAL ASN THR GLU ASN GLU SEQRES 2 A 337 ASP HIS LEU ALA LYS GLU LEU GLU ASP LEU ASN LYS TRP SEQRES 3 A 337 GLY LEU ASN ILE PHE ASN VAL ALA GLY TYR SER HIS ASN SEQRES 4 A 337 ARG PRO LEU THR CYS ILE MET TYR ALA ILE PHE GLN GLU SEQRES 5 A 337 ARG ASP LEU LEU LYS THR PHE ARG ILE SER SER ASP THR SEQRES 6 A 337 PHE ILE THR TYR MET MET THR LEU GLU ASP HIS TYR HIS SEQRES 7 A 337 SER ASP VAL ALA TYR HIS ASN SER LEU HIS ALA ALA ASP SEQRES 8 A 337 VAL ALA GLN SER THR HIS VAL LEU LEU SER THR PRO ALA SEQRES 9 A 337 LEU ASP ALA VAL PHE THR ASP LEU GLU ILE LEU ALA ALA SEQRES 10 A 337 ILE PHE ALA ALA ALA ILE HIS ASP VAL ASP HIS PRO GLY SEQRES 11 A 337 VAL SER ASN GLN PHE LEU ILE ASN THR ASN SER GLU LEU SEQRES 12 A 337 ALA LEU MET TYR ASN ASP GLU SER VAL LEU GLU ASN HIS SEQRES 13 A 337 HIS LEU ALA VAL GLY PHE LYS LEU LEU GLN GLU GLU HIS SEQRES 14 A 337 CYS ASP ILE PHE MET ASN LEU THR LYS LYS GLN ARG GLN SEQRES 15 A 337 THR LEU ARG LYS MET VAL ILE ASP MET VAL LEU ALA THR SEQRES 16 A 337 ASP MET SER LYS HIS MET SER LEU LEU ALA ASP LEU LYS SEQRES 17 A 337 THR MET VAL GLU THR LYS LYS VAL THR SER SER GLY VAL SEQRES 18 A 337 LEU LEU LEU ASP ASN TYR THR ASP ARG ILE GLN VAL LEU SEQRES 19 A 337 ARG ASN MET VAL HIS CYS ALA ASP LEU SER ASN PRO THR SEQRES 20 A 337 LYS SER LEU GLU LEU TYR ARG GLN TRP THR ASP ARG ILE SEQRES 21 A 337 MET GLU GLU PHE PHE GLN GLN GLY ASP LYS GLU ARG GLU SEQRES 22 A 337 ARG GLY MET GLU ILE SER PRO MET CYS ASP LYS HIS THR SEQRES 23 A 337 ALA SER VAL GLU LYS SER GLN VAL GLY PHE ILE ASP TYR SEQRES 24 A 337 ILE VAL HIS PRO LEU TRP GLU THR TRP ALA ASP LEU VAL SEQRES 25 A 337 GLN PRO ASP ALA GLN ASP ILE LEU ASP THR LEU GLU ASP SEQRES 26 A 337 ASN ARG ASN TRP TYR GLN SER MET ILE PRO GLN SER HET ZN A 501 1 HET MG A 502 1 HET MG A 503 1 HET NPV A 1 28 HETNAM ZN ZINC ION HETNAM MG MAGNESIUM ION HETNAM NPV 4-[8-(3-NITROPHENYL)-1,7-NAPHTHYRIDIN-6-YL]BENZOIC ACID FORMUL 2 ZN ZN 2+ FORMUL 3 MG 2(MG 2+) FORMUL 5 NPV C21 H13 N3 O4 FORMUL 6 HOH *68(H2 O) HELIX 1 1 MET A 151 GLY A 157 1 7 HELIX 2 2 ASN A 162 LEU A 170 1 9 HELIX 3 3 GLU A 171 LEU A 173 5 3 HELIX 4 4 ASN A 179 TYR A 186 1 8 HELIX 5 5 ARG A 190 ASP A 204 1 15 HELIX 6 6 ASP A 204 PHE A 209 1 6 HELIX 7 7 SER A 212 HIS A 226 1 15 HELIX 8 8 ASN A 235 SER A 251 1 17 HELIX 9 9 THR A 252 ASP A 256 5 5 HELIX 10 10 THR A 260 HIS A 274 1 15 HELIX 11 11 SER A 282 THR A 289 1 8 HELIX 12 12 SER A 291 TYR A 297 1 7 HELIX 13 13 SER A 301 LEU A 315 1 15 HELIX 14 14 THR A 327 ALA A 344 1 18 HELIX 15 15 THR A 345 SER A 348 5 4 HELIX 16 16 LYS A 349 THR A 363 1 15 HELIX 17 17 ASN A 376 LEU A 393 1 18 HELIX 18 18 SER A 394 LYS A 398 5 5 HELIX 19 19 SER A 399 ARG A 424 1 26 HELIX 20 20 SER A 438 ILE A 450 1 13 HELIX 21 21 ILE A 450 VAL A 462 1 13 HELIX 22 22 ALA A 466 MET A 483 1 18 LINK NE2 HIS A 228 MG MG A 503 1555 1555 2.40 LINK NE2 HIS A 238 ZN ZN A 501 1555 1555 2.26 LINK NE2 HIS A 274 ZN ZN A 501 1555 1555 2.36 LINK OD2 ASP A 275 ZN ZN A 501 1555 1555 2.26 LINK OD1 ASP A 275 MG MG A 502 1555 1555 2.19 LINK OD1 ASP A 277 MG MG A 503 1555 1555 2.30 LINK OD1 ASP A 392 ZN ZN A 501 1555 1555 2.27 LINK ZN ZN A 501 O HOH A 504 1555 1555 2.19 LINK MG MG A 502 O HOH A 504 1555 1555 2.26 LINK MG MG A 502 O HOH A 506 1555 1555 2.41 LINK MG MG A 502 O HOH A 507 1555 1555 2.44 LINK MG MG A 502 O HOH A 508 1555 1555 2.31 LINK MG MG A 502 O HOH A 509 1555 1555 2.41 LINK MG MG A 503 O HOH A 513 1555 1555 2.32 LINK MG MG A 503 O HOH A 514 1555 1555 2.34 LINK MG MG A 503 O HOH A 515 1555 1555 2.33 LINK MG MG A 503 O HOH A 516 1555 1555 2.32 CISPEP 1 GLN A 463 PRO A 464 0 0.04 SITE 1 AC1 6 HIS A 238 HIS A 274 ASP A 275 ASP A 392 SITE 2 AC1 6 HOH A 504 HOH A 505 SITE 1 AC2 6 ASP A 275 HOH A 504 HOH A 506 HOH A 507 SITE 2 AC2 6 HOH A 508 HOH A 509 SITE 1 AC3 7 HIS A 228 ASP A 277 ASN A 290 HOH A 513 SITE 2 AC3 7 HOH A 514 HOH A 515 HOH A 516 SITE 1 AC4 10 MET A 347 ASN A 395 ILE A 410 PHE A 414 SITE 2 AC4 10 MET A 431 GLN A 443 PHE A 446 HOH A 508 SITE 3 AC4 10 HOH A 549 HOH A 562 CRYST1 91.758 105.353 87.827 90.00 90.00 90.00 C 2 2 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 0.010898 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009492 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011386 0.00000