HEADER ANTIBIOTIC BIOSYNTHESIS 15-JUN-99 1QIQ TITLE ISOPENICILLIN N SYNTHASE FROM ASPERGILLUS NIDULANS (ACMC 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 ANTIBIOTIC BIOSYNTHESIS, B-LACTAM ANTIBIOTIC, MONOCYCLIC KEYWDS 2 INTERMEDIATE, OXYGENASE, PENICILLIN BIOSYNTHESIS EXPDTA X-RAY DIFFRACTION AUTHOR P.J.RUTLEDGE,I.J.CLIFTON,N.I.BURZLAFF,P.L.ROACH,R.M.ADLINGTON, AUTHOR 2 J.E.BALDWIN REVDAT 5 13-DEC-23 1QIQ 1 REMARK LINK REVDAT 4 24-OCT-18 1QIQ 1 SOURCE REVDAT 3 05-JUL-17 1QIQ 1 REMARK REVDAT 2 24-FEB-09 1QIQ 1 VERSN REVDAT 1 16-JUN-00 1QIQ 0 JRNL AUTH N.I.BURZLAFF,P.J.RUTLEDGE,I.J.CLIFTON,C.M.H.HENSGENS, JRNL AUTH 2 M.PICKFORD,R.M.ADLINGTON,P.L.ROACH,J.E.BALDWIN JRNL TITL THE REACTION CYCLE OF ISOPENICILLIN N SYNTHASE OBSERVED BY JRNL TITL 2 X-RAY DIFFRACTION. JRNL REF NATURE V. 401 721 1999 JRNL REFN ISSN 0028-0836 JRNL PMID 10537113 JRNL DOI 10.1038/44400 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.L.ROACH,I.J.CLIFTON,C.M.HENSGENS,N.SHIBATA,C.J.SCHOFIELD, REMARK 1 AUTH 2 J.HAJDU,J.E.BALDWIN REMARK 1 TITL STRUCTURE OF ISOPENICILLIN N SYNTHASE COMPLEXED WITH REMARK 1 TITL 2 SUBSTRATE AND THE MECHANISM OF PENICILLIN FORMATION REMARK 1 REF NATURE V. 387 827 1997 REMARK 1 REFN ISSN 0028-0836 REMARK 1 PMID 9194566 REMARK 1 DOI 10.1038/42990 REMARK 1 REFERENCE 2 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 PMID 7791906 REMARK 1 DOI 10.1038/375700A0 REMARK 1 REFERENCE 3 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 1 PMID 7663335 REMARK 2 REMARK 2 RESOLUTION. 1.50 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 89.7 REMARK 3 NUMBER OF REFLECTIONS : 46597 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 : 0.199 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1961 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2639 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 30 REMARK 3 SOLVENT ATOMS : 410 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 11.42 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.10 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): 0.081 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.081 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) : 0.011 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.026 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.059 ; 0.050 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) : 0.100 ; 0.159 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 0.120 ; 0.195 REMARK 3 SIDE-CHAIN BOND (A**2) : 0.123 ; 0.159 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 0.144 ; 0.195 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1QIQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 15-JUN-99. REMARK 100 THE DEPOSITION ID IS D_1290002813. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-AUG-96 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 8.50 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SRS REMARK 200 BEAMLINE : PX9.6 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.8700 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 : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 46597 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.7 REMARK 200 DATA REDUNDANCY : 2.400 REMARK 200 R MERGE (I) : 0.06900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 7.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.58 REMARK 200 COMPLETENESS FOR SHELL (%) : 57.3 REMARK 200 DATA REDUNDANCY IN SHELL : 1.70 REMARK 200 R MERGE FOR SHELL (I) : 0.20000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: 1BK0 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.22 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.8M LITHIUM SULPHATE, 100MM TRIS/HCL REMARK 280 (PH8.5), (5MM FERROUS SULPHATE, 70 MM ACMC, 50MG/ML IPNS), PH REMARK 280 8.50 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 23.40500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 50.81500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 35.83000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 50.81500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.40500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 35.83000 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PQS 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 465 SER A 3 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 27 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG A 173 CD - NE - CZ ANGL. DEV. = 22.7 DEGREES REMARK 500 ASP A 193 CA - C - O ANGL. DEV. = -16.6 DEGREES REMARK 500 PRO A 194 CA - N - CD ANGL. DEV. = -10.8 DEGREES REMARK 500 PRO A 194 N - CA - CB ANGL. DEV. = 10.4 DEGREES REMARK 500 ARG A 308 NE - CZ - NH2 ANGL. DEV. = -3.3 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 -107.35 -98.79 REMARK 500 HIS A 82 64.10 -103.82 REMARK 500 LYS A 97 -41.75 -134.14 REMARK 500 THR A 123 -2.30 75.91 REMARK 500 ASN A 230 -22.95 -156.32 REMARK 500 ASP A 307 41.22 -101.05 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 49.48 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 21.34 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 333 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 214 NE2 REMARK 620 2 ASP A 216 OD1 96.6 REMARK 620 3 HIS A 270 NE2 84.1 84.9 REMARK 620 4 ACC A 332 S41 90.3 170.7 102.1 REMARK 620 5 ACC A 332 S37 90.3 84.5 167.3 89.3 REMARK 620 6 HOH A2289 O 173.8 86.4 90.8 87.3 95.4 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 FE A 333 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 334 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACC A 332 DBREF 1QIQ A 4 331 UNP P05326 IPNS_EMENI 4 331 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 ACC A 332 24 HET FE A 333 1 HET SO4 A 334 5 HETNAM ACC N-[N-[2-AMINO-6-OXO-HEXANOIC ACID-6-YL]CYSTEINYL]-S- HETNAM 2 ACC METHYLCYSTEINE HETNAM FE FE (III) ION HETNAM SO4 SULFATE ION FORMUL 2 ACC C13 H24 N3 O6 S2 1+ FORMUL 3 FE FE 3+ FORMUL 4 SO4 O4 S 2- FORMUL 5 HOH *410(H2 O) HELIX 1 1 SER A 15 GLY A 19 5 5 HELIX 2 2 ASP A 21 ASP A 38 1 18 HELIX 3 3 ASN A 50 ILE A 65 1 16 HELIX 4 4 THR A 66 ALA A 74 1 9 HELIX 5 5 HIS A 114 ALA A 119 1 6 HELIX 6 6 GLY A 137 LEU A 164 1 28 HELIX 7 7 PHE A 171 PHE A 175 5 5 HELIX 8 8 PRO A 196 ILE A 200 5 5 HELIX 9 9 GLY A 254 THR A 261 1 8 HELIX 10 10 SER A 312 GLY A 329 1 18 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 333 1555 1555 2.23 LINK OD1 ASP A 216 FE FE A 333 1555 1555 2.16 LINK NE2 HIS A 270 FE FE A 333 1555 1555 2.28 LINK S41 ACC A 332 FE FE A 333 1555 1555 2.69 LINK S37 ACC A 332 FE FE A 333 1555 1555 2.41 LINK FE FE A 333 O HOH A2289 1555 1555 2.20 SITE 1 AC1 5 HIS A 214 ASP A 216 HIS A 270 ACC A 332 SITE 2 AC1 5 HOH A2289 SITE 1 AC2 9 ARG A 53 ASP A 140 PHE A 141 HOH A2210 SITE 2 AC2 9 HOH A3001 HOH A3002 HOH A3003 HOH A3004 SITE 3 AC2 9 HOH A3005 SITE 1 AC3 21 ARG A 87 TYR A 91 SER A 183 TYR A 189 SITE 2 AC3 21 PHE A 211 HIS A 214 ASP A 216 GLN A 225 SITE 3 AC3 21 LEU A 231 SER A 281 PHE A 285 LEU A 324 SITE 4 AC3 21 FE A 333 HOH A2397 HOH A2399 HOH A2400 SITE 5 AC3 21 HOH A2401 HOH A2402 HOH A2403 HOH A2404 SITE 6 AC3 21 HOH A2405 CRYST1 46.810 71.660 101.630 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 0.021363 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013955 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009840 0.00000