HEADER OXIDOREDUCTASE 05-JUN-98 1RXF TITLE DEACETOXYCEPHALOSPORIN C SYNTHASE COMPLEXED WITH FE(II) COMPND MOL_ID: 1; COMPND 2 MOLECULE: DEACETOXYCEPHALOSPORIN C SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: RING EXPANDING ENZYME, RING EXPANDASE; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES CLAVULIGERUS; SOURCE 3 ORGANISM_TAXID: 1901; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: PET; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PET; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET 11A KEYWDS FERROUS OXYGENASE, CEPHALOSPORIN, 2-OXOGLUTARATE, ANTIBIOTICS, KEYWDS 2 MEROHEDRAL TWINNING, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR K.VALEGARD,A.C.TERWISSCHA VAN SCHELTINGA,M.D.LLOYD,T.HARA, AUTHOR 2 S.RAMASWAMY,A.PERRAKIS,A.THOMPSON,H.J.LEE,J.E.BALDWIN,C.J.SCHOFIELD, AUTHOR 3 J.HAJDU,I.ANDERSSON REVDAT 4 14-FEB-24 1RXF 1 REMARK LINK REVDAT 3 24-FEB-09 1RXF 1 VERSN REVDAT 2 01-APR-03 1RXF 1 JRNL REVDAT 1 08-JUN-99 1RXF 0 JRNL AUTH K.VALEGARD,A.C.VAN SCHELTINGA,M.D.LLOYD,T.HARA,S.RAMASWAMY, JRNL AUTH 2 A.PERRAKIS,A.THOMPSON,H.J.LEE,J.E.BALDWIN,C.J.SCHOFIELD, JRNL AUTH 3 J.HAJDU,I.ANDERSSON JRNL TITL STRUCTURE OF A CEPHALOSPORIN SYNTHASE. JRNL REF NATURE V. 394 805 1998 JRNL REFN ISSN 0028-0836 JRNL PMID 9723623 JRNL DOI 10.1038/29575 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH N.MORGAN,I.A.C.PEREIRA,I.ANDERSSON,R.M.ADLINGTON, REMARK 1 AUTH 2 J.E.BALDWIN,S.E.COLE,N.P.CROUCH,J.D.SUTHERLAND REMARK 1 TITL SUBSTRATE SPECIFICITY OF RECOMBINANT STREPTOMYCES REMARK 1 TITL 2 CLAVULIGERUS DEACETOXYCEPHALOSPORIN C SYNTHASE REMARK 1 REF BIOORG.MED.CHEM.LETT. V. 4 1595 1994 REMARK 1 REFN ISSN 0960-894X REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.0 REMARK 3 CROSS-VALIDATION METHOD : FREE R-VALUE REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.119 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.142 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 2.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 942 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 44655 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.115 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.137 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 2.000 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 864 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 41497 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2058 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 182 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2241.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 1974.0 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 4 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 19389 REMARK 3 NUMBER OF RESTRAINTS : 24240 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 ANGLE DISTANCES (A) : 0.029 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.391 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.047 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.057 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.035 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.003 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.060 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: MOEWS & KRETSINGER REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REFINED AGAINST MEROHEDRALLY TWINNED REMARK 3 INTENSITIES REMARK 4 REMARK 4 1RXF 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_1000176265. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : FEB-98 REMARK 200 TEMPERATURE (KELVIN) : 90 REMARK 200 PH : 7.0 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) : 0.80 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL 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 : 45516 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 39.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.4 REMARK 200 DATA REDUNDANCY : 4.300 REMARK 200 R MERGE (I) : 0.05100 REMARK 200 R SYM (I) : 0.05100 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 16.1000 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) : 1.53 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.10 REMARK 200 R MERGE FOR SHELL (I) : 0.29600 REMARK 200 R SYM FOR SHELL (I) : 0.29600 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIR REMARK 200 SOFTWARE USED: SHARP REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 X+2/3,Y+1/3,Z+1/3 REMARK 290 5555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 6555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 7555 X+1/3,Y+2/3,Z+2/3 REMARK 290 8555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 9555 -X+Y+1/3,-X+2/3,Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 53.05000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 30.62843 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 23.73333 REMARK 290 SMTRY1 5 -0.500000 -0.866025 0.000000 53.05000 REMARK 290 SMTRY2 5 0.866025 -0.500000 0.000000 30.62843 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 23.73333 REMARK 290 SMTRY1 6 -0.500000 0.866025 0.000000 53.05000 REMARK 290 SMTRY2 6 -0.866025 -0.500000 0.000000 30.62843 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 23.73333 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 61.25686 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 47.46667 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 61.25686 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 47.46667 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 61.25686 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 47.46667 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: TRIMERIC 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 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 LEU A 80 REMARK 465 GLU A 81 REMARK 465 SER A 82 REMARK 465 GLU A 83 REMARK 465 SER A 84 REMARK 465 THR A 85 REMARK 465 ALA A 86 REMARK 465 GLN A 87 REMARK 465 ILE A 88 REMARK 465 THR A 89 REMARK 465 ASN A 90 REMARK 465 THR A 91 REMARK 465 GLY A 92 REMARK 465 SER A 93 REMARK 465 TYR A 94 REMARK 465 SER A 95 REMARK 465 ASP A 96 REMARK 465 TYR A 97 REMARK 465 PRO A 165 REMARK 465 GLN A 166 REMARK 465 VAL A 167 REMARK 465 PRO A 168 REMARK 465 GLU A 169 REMARK 465 HIS A 170 REMARK 465 ARG A 171 REMARK 465 SER A 172 REMARK 465 ALA A 173 REMARK 465 GLU A 174 REMARK 465 GLU A 175 REMARK 465 GLN A 176 REMARK 465 PRO A 177 REMARK 465 LEU A 178 REMARK 465 ARG A 179 REMARK 465 ASN A 199 REMARK 465 ARG A 249 REMARK 465 ARG A 250 REMARK 465 ASP A 251 REMARK 465 GLN A 252 REMARK 465 ILE A 253 REMARK 465 ALA A 254 REMARK 465 GLY A 255 REMARK 465 SER A 256 REMARK 465 SER A 257 REMARK 465 SER A 309 REMARK 465 LYS A 310 REMARK 465 ALA A 311 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 64 CD NE CZ NH1 NH2 REMARK 470 MET A 180 CG SD CE 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 117 NE - CZ - NH2 ANGL. DEV. = -3.6 DEGREES REMARK 500 ARG A 131 NE - CZ - NH2 ANGL. DEV. = 5.0 DEGREES REMARK 500 ARG A 135 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 ARG A 135 NE - CZ - NH2 ANGL. DEV. = -4.8 DEGREES REMARK 500 ARG A 218 NE - CZ - NH2 ANGL. DEV. = -4.2 DEGREES REMARK 500 ASP A 220 C - N - CA ANGL. DEV. = 19.3 DEGREES REMARK 500 GLN A 295 O - C - N ANGL. DEV. = -12.3 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 CYS A 155 -140.52 -131.67 REMARK 500 SER A 286 69.01 -118.57 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 312 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 183 NE2 REMARK 620 2 ASP A 185 OD1 99.4 REMARK 620 3 HIS A 243 NE2 86.3 89.3 REMARK 620 4 HOH A 628 O 93.4 167.3 91.4 REMARK 620 5 HOH A 629 O 170.5 90.2 93.9 77.1 REMARK 620 6 HOH A 630 O 96.7 93.4 175.5 85.1 82.5 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 312 DBREF 1RXF A 1 311 UNP P18548 CEFE_STRCL 1 311 SEQRES 1 A 311 MET ASP THR THR VAL PRO THR PHE SER LEU ALA GLU LEU SEQRES 2 A 311 GLN GLN GLY LEU HIS GLN ASP GLU PHE ARG ARG CYS LEU SEQRES 3 A 311 ARG ASP LYS GLY LEU PHE TYR LEU THR ASP CYS GLY LEU SEQRES 4 A 311 THR ASP THR GLU LEU LYS SER ALA LYS ASP LEU VAL ILE SEQRES 5 A 311 ASP PHE PHE GLU HIS GLY SER GLU ALA GLU LYS ARG ALA SEQRES 6 A 311 VAL THR SER PRO VAL PRO THR MET ARG ARG GLY PHE THR SEQRES 7 A 311 GLY LEU GLU SER GLU SER THR ALA GLN ILE THR ASN THR SEQRES 8 A 311 GLY SER TYR SER ASP TYR SER MET CYS TYR SER MET GLY SEQRES 9 A 311 THR ALA ASP ASN LEU PHE PRO SER GLY ASP PHE GLU ARG SEQRES 10 A 311 ILE TRP THR GLN TYR PHE ASP ARG GLN TYR THR ALA SER SEQRES 11 A 311 ARG ALA VAL ALA ARG GLU VAL LEU ARG ALA THR GLY THR SEQRES 12 A 311 GLU PRO ASP GLY GLY VAL GLU ALA PHE LEU ASP CYS GLU SEQRES 13 A 311 PRO LEU LEU ARG PHE ARG TYR PHE PRO GLN VAL PRO GLU SEQRES 14 A 311 HIS ARG SER ALA GLU GLU GLN PRO LEU ARG MET ALA PRO SEQRES 15 A 311 HIS TYR ASP LEU SER MET VAL THR LEU ILE GLN GLN THR SEQRES 16 A 311 PRO CYS ALA ASN GLY PHE VAL SER LEU GLN ALA GLU VAL SEQRES 17 A 311 GLY GLY ALA PHE THR ASP LEU PRO TYR ARG PRO ASP ALA SEQRES 18 A 311 VAL LEU VAL PHE CYS GLY ALA ILE ALA THR LEU VAL THR SEQRES 19 A 311 GLY GLY GLN VAL LYS ALA PRO ARG HIS HIS VAL ALA ALA SEQRES 20 A 311 PRO ARG ARG ASP GLN ILE ALA GLY SER SER ARG THR SER SEQRES 21 A 311 SER VAL PHE PHE LEU ARG PRO ASN ALA ASP PHE THR PHE SEQRES 22 A 311 SER VAL PRO LEU ALA ARG GLU CYS GLY PHE ASP VAL SER SEQRES 23 A 311 LEU ASP GLY GLU THR ALA THR PHE GLN ASP TRP ILE GLY SEQRES 24 A 311 GLY ASN TYR VAL ASN ILE ARG ARG THR SER LYS ALA HET FE A 312 1 HETNAM FE FE (III) ION FORMUL 2 FE FE 3+ FORMUL 3 HOH *182(H2 O) HELIX 1 1 LEU A 10 GLN A 14 1 5 HELIX 2 2 GLN A 19 ASP A 28 1 10 HELIX 3 3 ASP A 41 HIS A 57 1 17 HELIX 4 4 GLU A 60 VAL A 66 1 7 HELIX 5 5 GLY A 113 ALA A 140 1 28 HELIX 6 6 VAL A 149 LEU A 153 1 5 HELIX 7 7 ALA A 228 VAL A 233 1 6 HELIX 8 8 VAL A 275 CYS A 281 1 7 HELIX 9 9 PHE A 294 ILE A 298 1 5 SHEET 1 A 8 THR A 7 SER A 9 0 SHEET 2 A 8 LEU A 31 THR A 35 1 N TYR A 33 O PHE A 8 SHEET 3 A 8 ALA A 221 CYS A 226 -1 N VAL A 224 O PHE A 32 SHEET 4 A 8 VAL A 189 THR A 195 -1 N ILE A 192 O LEU A 223 SHEET 5 A 8 THR A 259 LEU A 265 -1 N LEU A 265 O VAL A 189 SHEET 6 A 8 LEU A 158 TYR A 163 -1 N ARG A 162 O SER A 260 SHEET 7 A 8 MET A 99 MET A 103 -1 N MET A 103 O LEU A 159 SHEET 8 A 8 GLY A 76 THR A 78 -1 N THR A 78 O CYS A 100 SHEET 1 B 3 HIS A 243 VAL A 245 0 SHEET 2 B 3 LEU A 204 VAL A 208 -1 N GLN A 205 O HIS A 244 SHEET 3 B 3 ALA A 211 ASP A 214 -1 N THR A 213 O ALA A 206 SHEET 1 C 2 THR A 272 SER A 274 0 SHEET 2 C 2 THR A 291 THR A 293 -1 N ALA A 292 O PHE A 273 LINK NE2 HIS A 183 FE FE A 312 1555 1555 2.19 LINK OD1 ASP A 185 FE FE A 312 1555 1555 2.15 LINK NE2 HIS A 243 FE FE A 312 1555 1555 2.15 LINK FE FE A 312 O HOH A 628 1555 1555 2.11 LINK FE FE A 312 O HOH A 629 1555 1555 2.23 LINK FE FE A 312 O HOH A 630 1555 1555 2.09 SITE 1 AC1 6 HIS A 183 ASP A 185 HIS A 243 HOH A 628 SITE 2 AC1 6 HOH A 629 HOH A 630 CRYST1 106.100 106.100 71.200 90.00 90.00 120.00 H 3 9 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 0.009425 0.005442 0.000000 0.00000 SCALE2 0.000000 0.010883 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014045 0.00000