PDB Short entry for 1BK0 HEADER B-LACTAM ANTIBIOTIC 14-JUL-98 1BK0 TITLE ISOPENICILLIN N SYNTHASE FROM ASPERGILLUS NIDULANS (ACV-FE COMPLEX) COMPND MOL_ID: 1; COMPND 2 MOLECULE: ISOPENICILLIN N SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: EMERICELLA NIDULANS; SOURCE 3 ORGANISM_TAXID: 162425; SOURCE 4 GENE: PCB C; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: NM554; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PJB703 KEYWDS B-LACTAM ANTIBIOTIC, OXYGENASE, PENICILLIN BIOSYNTHESIS EXPDTA X-RAY DIFFRACTION AUTHOR P.L.ROACH,I.J.CLIFTON,C.M.H.HENSGENS,N.SHIBATA,C.J.SCHOFIELD,J.HAJDU, AUTHOR 2 J.E.BALDWIN REVDAT 3 02-AUG-23 1BK0 1 REMARK LINK REVDAT 2 24-FEB-09 1BK0 1 VERSN REVDAT 1 13-JAN-99 1BK0 0 JRNL AUTH P.L.ROACH,I.J.CLIFTON,C.M.HENSGENS,N.SHIBATA,C.J.SCHOFIELD, JRNL AUTH 2 J.HAJDU,J.E.BALDWIN JRNL TITL STRUCTURE OF ISOPENICILLIN N SYNTHASE COMPLEXED WITH JRNL TITL 2 SUBSTRATE AND THE MECHANISM OF PENICILLIN FORMATION. JRNL REF NATURE V. 387 827 1997 JRNL REFN ISSN 0028-0836 JRNL PMID 9194566 JRNL DOI 10.1038/42990 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.L.ROACH,I.J.CLIFTON,V.FULOP,K.HARLOS,G.J.BARTON,J.HAJDU, REMARK 1 AUTH 2 I.ANDERSSON,C.J.SCHOFIELD,J.E.BALDWIN REMARK 1 TITL CRYSTAL STRUCTURE OF ISOPENICILLIN N SYNTHASE IS THE FIRST REMARK 1 TITL 2 FROM A NEW STRUCTURAL FAMILY OF ENZYMES REMARK 1 REF NATURE V. 375 700 1995 REMARK 1 REFN ISSN 0028-0836 REMARK 1 REFERENCE 2 REMARK 1 AUTH P.L.ROACH,C.J.SCHOFIELD,J.E.BALDWIN,I.J.CLIFTON,J.HAJDU REMARK 1 TITL CRYSTALLIZATION AND PRELIMINARY X-RAY DIFFRACTION STUDIES ON REMARK 1 TITL 2 RECOMBINANT ISOPENICILLIN N SYNTHASE FROM ASPERGILLUS REMARK 1 TITL 3 NIDULANS REMARK 1 REF PROTEIN SCI. V. 4 1007 1995 REMARK 1 REFN ISSN 0961-8368 REMARK 2 REMARK 2 RESOLUTION. 1.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 12.50 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.3 REMARK 3 NUMBER OF REFLECTIONS : 80111 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) : NULL REMARK 3 R VALUE (WORKING SET) : 0.173 REMARK 3 FREE R VALUE : 0.190 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3214 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2631 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 30 REMARK 3 SOLVENT ATOMS : 323 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 11.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 11.50 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.008 ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 0.890 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.370 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.450 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.270 ; 2.500 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT AND EXTRA STATISTICS REMARK 3 GENERATED WITH X-PLOR 3.851. ESD FROM LUZZATI PLOT (A) : 0.13 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.0 REMARK 4 REMARK 4 1BK0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000171847. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NOV-95 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : BM14 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.997 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : TOROIDAL MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 80233 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.300 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.4 REMARK 200 DATA REDUNDANCY : 3.210 REMARK 200 R MERGE (I) : 0.05500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 25.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.35 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.04 REMARK 200 R MERGE FOR SHELL (I) : 0.31800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: 1IPS REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.32 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 8.5 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 23.40000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 50.50000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 35.75000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 50.50000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.40000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 35.75000 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: 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 MET A 1 REMARK 465 GLY A 2 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 ARG A 76 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 197 CG CD OE1 OE2 REMARK 470 GLU A 243 CG CD OE1 OE2 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 ARG A 173 CD - NE - CZ ANGL. DEV. = 21.0 DEGREES REMARK 500 ASP A 193 CA - C - O ANGL. DEV. = -17.5 DEGREES REMARK 500 PRO A 194 N - CA - CB ANGL. DEV. = 8.1 DEGREES REMARK 500 ARG A 300 CD - NE - CZ ANGL. DEV. = 18.1 DEGREES REMARK 500 ARG A 308 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 ASP A 38 -109.31 -94.75 REMARK 500 HIS A 82 65.43 -101.19 REMARK 500 LYS A 97 -40.15 -134.08 REMARK 500 THR A 123 -6.60 77.94 REMARK 500 ASN A 230 -29.39 -155.31 REMARK 500 LEU A 282 77.34 -119.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 ASP A 193 PRO A 194 45.86 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 ASP A 193 22.54 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 FE A 350 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 214 NE2 REMARK 620 2 ASP A 216 OD1 99.4 REMARK 620 3 HIS A 270 NE2 85.7 87.6 REMARK 620 4 ACV A 351 S17 93.0 90.4 177.4 REMARK 620 5 HOH A 713 O 165.8 93.4 88.8 93.0 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: SA REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: ACTIVE SITE (FE BINDING). REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 352 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE A 350 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACV A 351 DBREF 1BK0 A 1 331 UNP P05326 IPNS_EMENI 1 331 SEQRES 1 A 331 MET GLY SER VAL SER LYS ALA ASN VAL PRO LYS ILE ASP SEQRES 2 A 331 VAL SER PRO LEU PHE GLY ASP ASP GLN ALA ALA LYS MET SEQRES 3 A 331 ARG VAL ALA GLN GLN ILE ASP ALA ALA SER ARG ASP THR SEQRES 4 A 331 GLY PHE PHE TYR ALA VAL ASN HIS GLY ILE ASN VAL GLN SEQRES 5 A 331 ARG LEU SER GLN LYS THR LYS GLU PHE HIS MET SER ILE SEQRES 6 A 331 THR PRO GLU GLU LYS TRP ASP LEU ALA ILE ARG ALA TYR SEQRES 7 A 331 ASN LYS GLU HIS GLN ASP GLN VAL ARG ALA GLY TYR TYR SEQRES 8 A 331 LEU SER ILE PRO GLY LYS LYS ALA VAL GLU SER PHE CYS SEQRES 9 A 331 TYR LEU ASN PRO ASN PHE THR PRO ASP HIS PRO ARG ILE SEQRES 10 A 331 GLN ALA LYS THR PRO THR HIS GLU VAL ASN VAL TRP PRO SEQRES 11 A 331 ASP GLU THR LYS HIS PRO GLY PHE GLN ASP PHE ALA GLU SEQRES 12 A 331 GLN TYR TYR TRP ASP VAL PHE GLY LEU SER SER ALA LEU SEQRES 13 A 331 LEU LYS GLY TYR ALA LEU ALA LEU GLY LYS GLU GLU ASN SEQRES 14 A 331 PHE PHE ALA ARG HIS PHE LYS PRO ASP ASP THR LEU ALA SEQRES 15 A 331 SER VAL VAL LEU ILE ARG TYR PRO TYR LEU ASP PRO TYR SEQRES 16 A 331 PRO GLU ALA ALA ILE LYS THR ALA ALA ASP GLY THR LYS SEQRES 17 A 331 LEU SER PHE GLU TRP HIS GLU ASP VAL SER LEU ILE THR SEQRES 18 A 331 VAL LEU TYR GLN SER ASN VAL GLN ASN LEU GLN VAL GLU SEQRES 19 A 331 THR ALA ALA GLY TYR GLN ASP ILE GLU ALA ASP ASP THR SEQRES 20 A 331 GLY TYR LEU ILE ASN CYS GLY SER TYR MET ALA HIS LEU SEQRES 21 A 331 THR ASN ASN TYR TYR LYS ALA PRO ILE HIS ARG VAL LYS SEQRES 22 A 331 TRP VAL ASN ALA GLU ARG GLN SER LEU PRO PHE PHE VAL SEQRES 23 A 331 ASN LEU GLY TYR ASP SER VAL ILE ASP PRO PHE ASP PRO SEQRES 24 A 331 ARG GLU PRO ASN GLY LYS SER ASP ARG GLU PRO LEU SER SEQRES 25 A 331 TYR GLY ASP TYR LEU GLN ASN GLY LEU VAL SER LEU ILE SEQRES 26 A 331 ASN LYS ASN GLY GLN THR HET SO4 A 352 5 HET FE A 350 1 HET ACV A 351 24 HETNAM SO4 SULFATE ION HETNAM FE FE (III) ION HETNAM ACV L-D-(A-AMINOADIPOYL)-L-CYSTEINYL-D-VALINE FORMUL 2 SO4 O4 S 2- FORMUL 3 FE FE 3+ FORMUL 4 ACV C14 H25 N3 O6 S FORMUL 5 HOH *323(H2 O) HELIX 1 1 SER A 15 PHE A 18 5 4 HELIX 2 2 GLN A 22 ARG A 37 1 16 HELIX 3 3 VAL A 51 SER A 64 1 14 HELIX 4 4 PRO A 67 LEU A 73 1 7 HELIX 5 5 PRO A 115 GLN A 118 1 4 HELIX 6 6 PHE A 138 ALA A 163 1 26 HELIX 7 7 ALA A 172 HIS A 174 5 3 HELIX 8 8 GLU A 197 ALA A 199 5 3 HELIX 9 9 SER A 255 LEU A 260 1 6 HELIX 10 10 TYR A 313 ASN A 328 1 16 SHEET 1 A 8 PRO A 10 ASP A 13 0 SHEET 2 A 8 PHE A 41 VAL A 45 1 N TYR A 43 O PRO A 10 SHEET 3 A 8 TYR A 249 CYS A 253 -1 N ILE A 251 O PHE A 42 SHEET 4 A 8 ILE A 220 GLN A 225 -1 N LEU A 223 O LEU A 250 SHEET 5 A 8 ARG A 279 VAL A 286 -1 N VAL A 286 O ILE A 220 SHEET 6 A 8 VAL A 184 TYR A 189 -1 N TYR A 189 O ARG A 279 SHEET 7 A 8 GLU A 101 TYR A 105 -1 N TYR A 105 O VAL A 184 SHEET 8 A 8 GLY A 89 TYR A 91 -1 N TYR A 91 O SER A 102 SHEET 1 B 3 HIS A 270 VAL A 272 0 SHEET 2 B 3 LEU A 231 THR A 235 -1 N GLN A 232 O ARG A 271 SHEET 3 B 3 GLY A 238 ASP A 241 -1 N GLN A 240 O VAL A 233 LINK NE2 HIS A 214 FE FE A 350 1555 1555 2.20 LINK OD1 ASP A 216 FE FE A 350 1555 1555 2.07 LINK NE2 HIS A 270 FE FE A 350 1555 1555 2.21 LINK FE FE A 350 S17 ACV A 351 1555 1555 2.41 LINK FE FE A 350 O HOH A 713 1555 1555 2.14 SITE 1 SA 3 HIS A 214 ASP A 216 HIS A 270 SITE 1 AC1 7 ARG A 53 ASP A 140 PHE A 141 HOH A 529 SITE 2 AC1 7 HOH A 552 HOH A 751 HOH A 826 SITE 1 AC2 5 HIS A 214 ASP A 216 HIS A 270 ACV A 351 SITE 2 AC2 5 HOH A 713 SITE 1 AC3 18 ARG A 87 TYR A 91 SER A 183 ILE A 187 SITE 2 AC3 18 TYR A 189 PHE A 211 HIS A 214 ASP A 216 SITE 3 AC3 18 SER A 281 PHE A 285 FE A 350 HOH A 590 SITE 4 AC3 18 HOH A 616 HOH A 620 HOH A 662 HOH A 692 SITE 5 AC3 18 HOH A 709 HOH A 714 CRYST1 46.800 71.500 101.000 90.00 90.00 90.00 P 21 21 21 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 0.021368 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013986 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009901 0.00000