PDB Short entry for 2GPC HEADER OXIDOREDUCTASE 17-APR-06 2GPC TITLE THE CRYSTAL STRUCTURE OF THE ENZYME FE-SUPEROXIDE DISMUTASE FROM TITLE 2 TRYPANOSOMA CRUZI COMPND MOL_ID: 1; COMPND 2 MOLECULE: IRON SUPEROXIDE DISMUTASE; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TRYPANOSOMA CRUZI; SOURCE 3 ORGANISM_TAXID: 5693; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ALPHA+BETA STRUCTURE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR M.V.A.S.NAVARRO,R.C.GARRATT REVDAT 6 15-NOV-23 2GPC 1 REMARK REVDAT 5 30-AUG-23 2GPC 1 REMARK SEQADV LINK REVDAT 4 18-AUG-09 2GPC 1 JRNL REVDAT 3 12-MAY-09 2GPC 1 JRNL REVDAT 2 24-FEB-09 2GPC 1 VERSN REVDAT 1 28-AUG-07 2GPC 0 JRNL AUTH J.F.BACHEGA,M.V.NAVARRO,L.BLEICHER,R.K.BORTOLETO-BUGS, JRNL AUTH 2 D.DIVE,P.HOFFMANN,E.VISCOGLIOSI,R.C.GARRATT JRNL TITL SYSTEMATIC STRUCTURAL STUDIES OF IRON SUPEROXIDE DISMUTASES JRNL TITL 2 FROM HUMAN PARASITES AND A STATISTICAL COUPLING ANALYSIS OF JRNL TITL 3 METAL BINDING SPECIFICITY JRNL REF PROTEINS V. 77 26 2009 JRNL REFN ISSN 0887-3585 JRNL PMID 19384994 JRNL DOI 10.1002/PROT.22412 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.24 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.49 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 94.6 REMARK 3 NUMBER OF REFLECTIONS : 26598 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) : 0.157 REMARK 3 R VALUE (WORKING SET) : 0.154 REMARK 3 FREE R VALUE : 0.198 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1414 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.00 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2821 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.1870 REMARK 3 BIN FREE R VALUE SET COUNT : 150 REMARK 3 BIN FREE R VALUE : 0.2430 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3096 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 458 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.47 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.01000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.01000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.164 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.143 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.091 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.122 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.958 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.938 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 3204 ; 0.008 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): 2709 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 4366 ; 1.118 ; 1.912 REMARK 3 BOND ANGLES OTHERS (DEGREES): 6345 ; 0.779 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 388 ; 5.694 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 454 ; 0.069 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 3601 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 663 ; 0.003 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 683 ; 0.199 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 3066 ; 0.228 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): 1630 ; 0.081 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 335 ; 0.136 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 12 ; 0.102 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 33 ; 0.201 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 36 ; 0.154 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1932 ; 0.460 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 3103 ; 0.877 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1272 ; 1.366 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1262 ; 2.230 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 2GPC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-APR-06. REMARK 100 THE DEPOSITION ID IS D_1000037391. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-FEB-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27127 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 29.500 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.6 REMARK 200 DATA REDUNDANCY : 4.400 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06300 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.99 REMARK 200 COMPLETENESS FOR SHELL (%) : 69.9 REMARK 200 DATA REDUNDANCY IN SHELL : 2.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.27600 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 1ISA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.48 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.14 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 24% PEG4000, 0.2 M MGCL2, 0.1 M TRIS REMARK 280 -HCL, PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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 54.81300 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 19.49250 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 54.81300 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 19.49250 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 ASYMMETRIC UNIT CONTAINS A DIMER, WHICH REPRESENTS THE REMARK 300 BIOLOGICAL ASSEMBLY 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 APPLY THE FOLLOWING TO CHAINS: A, B 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OH TYR A 139 OE2 GLU A 150 2.14 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 143 -113.16 58.24 REMARK 500 LYS A 171 -128.31 47.38 REMARK 500 ASP B 143 -113.17 53.09 REMARK 500 LYS B 171 -125.84 49.44 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 FE2 A 195 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 27 NE2 REMARK 620 2 HIS A 75 NE2 95.9 REMARK 620 3 ASP A 160 OD2 86.3 114.1 REMARK 620 4 HIS A 164 NE2 97.7 124.9 119.9 REMARK 620 5 HOH A 505 O 169.4 88.6 83.1 87.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 496 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 497 O REMARK 620 2 HOH A 498 O 82.1 REMARK 620 3 HOH A 499 O 89.6 164.6 REMARK 620 4 HOH A 500 O 95.7 88.3 79.6 REMARK 620 5 HOH A 501 O 101.0 93.4 100.9 163.3 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE2 B 195 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 27 NE2 REMARK 620 2 HIS B 75 NE2 94.0 REMARK 620 3 ASP B 160 OD2 86.1 111.8 REMARK 620 4 HIS B 164 NE2 98.3 125.9 121.5 REMARK 620 5 HOH B 196 O 168.9 85.8 83.6 90.8 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 195 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 496 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 B 195 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2GOJ RELATED DB: PDB REMARK 900 THE FE-SUPEROXIDE DISMUTASE FROM PLASMODIUM FALCIPARUM DBREF 2GPC A 1 194 GB 71650673 XP_814030 1 195 DBREF 2GPC B 1 194 GB 71650673 XP_814030 1 195 SEQADV 2GPC A GB 71650673 VAL 2 DELETION SEQADV 2GPC B GB 71650673 VAL 2 DELETION SEQRES 1 A 194 MET PHE SER ILE PRO PRO LEU PRO TRP GLY TYR ASP GLY SEQRES 2 A 194 LEU ALA ALA LYS GLY LEU SER LYS GLN GLN VAL THR LEU SEQRES 3 A 194 HIS TYR ASP LYS HIS HIS GLN GLY TYR VAL THR LYS LEU SEQRES 4 A 194 ASN ALA ALA ALA GLN THR ASN SER ALA LEU ALA THR LYS SEQRES 5 A 194 SER ILE GLU GLU ILE ILE ARG THR GLU LYS GLY PRO ILE SEQRES 6 A 194 PHE ASN LEU ALA ALA GLN ILE PHE ASN HIS THR PHE TYR SEQRES 7 A 194 TRP GLU SER MET OCS PRO ASN GLY GLY GLY GLU PRO THR SEQRES 8 A 194 GLY LYS VAL ALA ASP GLU ILE ASN ALA SER PHE GLY SER SEQRES 9 A 194 PHE ALA LYS PHE LYS GLU GLU PHE THR ASN VAL ALA VAL SEQRES 10 A 194 GLY HIS PHE GLY SER GLY TRP ALA TRP LEU VAL LYS ASP SEQRES 11 A 194 THR ASN SER GLY LYS LEU LYS VAL TYR GLN THR HIS ASP SEQRES 12 A 194 ALA GLY CYS PRO LEU THR GLU PRO ASN LEU LYS PRO LEU SEQRES 13 A 194 LEU THR CYS ASP VAL TRP GLU HIS ALA TYR TYR VAL ASP SEQRES 14 A 194 TYR LYS ASN ASP ARG ALA ALA TYR VAL GLN THR PHE TRP SEQRES 15 A 194 ASN VAL VAL ASN TRP LYS ASN VAL GLU ARG GLN LEU SEQRES 1 B 194 MET PHE SER ILE PRO PRO LEU PRO TRP GLY TYR ASP GLY SEQRES 2 B 194 LEU ALA ALA LYS GLY LEU SER LYS GLN GLN VAL THR LEU SEQRES 3 B 194 HIS TYR ASP LYS HIS HIS GLN GLY TYR VAL THR LYS LEU SEQRES 4 B 194 ASN ALA ALA ALA GLN THR ASN SER ALA LEU ALA THR LYS SEQRES 5 B 194 SER ILE GLU GLU ILE ILE ARG THR GLU LYS GLY PRO ILE SEQRES 6 B 194 PHE ASN LEU ALA ALA GLN ILE PHE ASN HIS THR PHE TYR SEQRES 7 B 194 TRP GLU SER MET OCS PRO ASN GLY GLY GLY GLU PRO THR SEQRES 8 B 194 GLY LYS VAL ALA ASP GLU ILE ASN ALA SER PHE GLY SER SEQRES 9 B 194 PHE ALA LYS PHE LYS GLU GLU PHE THR ASN VAL ALA VAL SEQRES 10 B 194 GLY HIS PHE GLY SER GLY TRP ALA TRP LEU VAL LYS ASP SEQRES 11 B 194 THR ASN SER GLY LYS LEU LYS VAL TYR GLN THR HIS ASP SEQRES 12 B 194 ALA GLY CYS PRO LEU THR GLU PRO ASN LEU LYS PRO LEU SEQRES 13 B 194 LEU THR CYS ASP VAL TRP GLU HIS ALA TYR TYR VAL ASP SEQRES 14 B 194 TYR LYS ASN ASP ARG ALA ALA TYR VAL GLN THR PHE TRP SEQRES 15 B 194 ASN VAL VAL ASN TRP LYS ASN VAL GLU ARG GLN LEU MODRES 2GPC OCS A 83 CYS CYSTEINESULFONIC ACID MODRES 2GPC OCS B 83 CYS CYSTEINESULFONIC ACID HET OCS A 83 9 HET OCS B 83 9 HET FE2 A 195 1 HET MG A 496 1 HET FE2 B 195 1 HETNAM OCS CYSTEINESULFONIC ACID HETNAM FE2 FE (II) ION HETNAM MG MAGNESIUM ION FORMUL 1 OCS 2(C3 H7 N O5 S) FORMUL 3 FE2 2(FE 2+) FORMUL 4 MG MG 2+ FORMUL 6 HOH *458(H2 O) HELIX 1 1 LEU A 14 GLY A 18 5 5 HELIX 2 2 SER A 20 LYS A 30 1 11 HELIX 3 3 LYS A 30 THR A 45 1 16 HELIX 4 4 ASN A 46 LYS A 52 5 7 HELIX 5 5 SER A 53 GLU A 61 1 9 HELIX 6 6 LYS A 62 SER A 81 1 20 HELIX 7 7 THR A 91 GLY A 103 1 13 HELIX 8 8 SER A 104 HIS A 119 1 16 HELIX 9 9 CYS A 146 GLU A 150 5 5 HELIX 10 10 TRP A 162 ALA A 165 5 4 HELIX 11 11 TYR A 166 LYS A 171 1 6 HELIX 12 12 ASP A 173 VAL A 185 1 13 HELIX 13 13 ASN A 186 LEU A 194 1 9 HELIX 14 14 LEU B 14 GLY B 18 5 5 HELIX 15 15 SER B 20 LYS B 30 1 11 HELIX 16 16 LYS B 30 ASN B 46 1 17 HELIX 17 17 ASN B 46 THR B 51 1 6 HELIX 18 18 SER B 53 GLU B 61 1 9 HELIX 19 19 GLY B 63 SER B 81 1 19 HELIX 20 20 THR B 91 GLY B 103 1 13 HELIX 21 21 SER B 104 HIS B 119 1 16 HELIX 22 22 CYS B 146 GLU B 150 5 5 HELIX 23 23 TRP B 162 ALA B 165 5 4 HELIX 24 24 TYR B 166 LYS B 171 1 6 HELIX 25 25 ASP B 173 VAL B 185 1 13 HELIX 26 26 ASN B 186 LEU B 194 1 9 SHEET 1 A 3 LEU A 136 HIS A 142 0 SHEET 2 A 3 GLY A 123 ASP A 130 -1 N TRP A 126 O TYR A 139 SHEET 3 A 3 LEU A 153 ASP A 160 -1 O LEU A 156 N LEU A 127 SHEET 1 B 3 LEU B 136 HIS B 142 0 SHEET 2 B 3 GLY B 123 ASP B 130 -1 N TRP B 124 O THR B 141 SHEET 3 B 3 LEU B 153 ASP B 160 -1 O LEU B 156 N LEU B 127 LINK C MET A 82 N OCS A 83 1555 1555 1.33 LINK C OCS A 83 N PRO A 84 1555 1555 1.33 LINK C MET B 82 N OCS B 83 1555 1555 1.33 LINK C OCS B 83 N PRO B 84 1555 1555 1.33 LINK NE2 HIS A 27 FE FE2 A 195 1555 1555 2.14 LINK NE2 HIS A 75 FE FE2 A 195 1555 1555 2.10 LINK OD2 ASP A 160 FE FE2 A 195 1555 1555 1.99 LINK NE2 HIS A 164 FE FE2 A 195 1555 1555 2.07 LINK FE FE2 A 195 O HOH A 505 1555 1555 2.27 LINK MG MG A 496 O HOH A 497 1555 1555 2.19 LINK MG MG A 496 O HOH A 498 1555 1555 2.15 LINK MG MG A 496 O HOH A 499 1555 1555 2.34 LINK MG MG A 496 O HOH A 500 1555 1555 2.10 LINK MG MG A 496 O HOH A 501 1555 1555 2.07 LINK NE2 HIS B 27 FE FE2 B 195 1555 1555 2.32 LINK NE2 HIS B 75 FE FE2 B 195 1555 1555 2.13 LINK OD2 ASP B 160 FE FE2 B 195 1555 1555 1.97 LINK NE2 HIS B 164 FE FE2 B 195 1555 1555 2.12 LINK FE FE2 B 195 O HOH B 196 1555 1555 2.28 SITE 1 AC1 5 HIS A 27 HIS A 75 ASP A 160 HIS A 164 SITE 2 AC1 5 HOH A 505 SITE 1 AC2 5 HOH A 497 HOH A 498 HOH A 499 HOH A 500 SITE 2 AC2 5 HOH A 501 SITE 1 AC3 5 HIS B 27 HIS B 75 ASP B 160 HIS B 164 SITE 2 AC3 5 HOH B 196 CRYST1 109.626 38.985 91.073 90.00 105.85 90.00 C 1 2 1 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 0.009122 0.000000 0.002590 0.00000 SCALE2 0.000000 0.025651 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011414 0.00000