HEADER OXIDOREDUCTASE 17-APR-06 2GPC TITLE THE CRYSTAL STRUCTURE OF THE ENZYME FE-SUPEROXIDE DISMUTASE TITLE 2 FROM 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 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, JRNL AUTH 2 R.K.BORTOLETO-BUGS,D.DIVE,P.HOFFMANN,E.VISCOGLIOSI, JRNL AUTH 3 R.C.GARRATT JRNL TITL SYSTEMATIC STRUCTURAL STUDIES OF IRON SUPEROXIDE JRNL TITL 2 DISMUTASES FROM HUMAN PARASITES AND A STATISTICAL JRNL TITL 3 COUPLING ANALYSIS OF 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 1 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.24 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON 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 : 3107 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 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1272 ; 1.366 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1262 ; 2.230 ; 4.500 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 REMARK 3 RIDING POSITIONS REMARK 4 REMARK 4 2GPC COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-APR-06. REMARK 100 THE RCSB ID CODE IS RCSB037391. 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 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 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 REMARK 280 TRIS-HCL, PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 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 REMARK 300 THE 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 ASP A 160 OD2 REMARK 620 2 HIS A 164 NE2 119.9 REMARK 620 3 HIS A 75 NE2 114.1 124.9 REMARK 620 4 HIS A 27 NE2 86.3 97.7 95.9 REMARK 620 5 HOH A 505 O 83.1 87.6 88.6 169.4 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 ASP B 160 OD2 REMARK 620 2 HIS B 164 NE2 121.5 REMARK 620 3 HIS B 75 NE2 111.8 125.9 REMARK 620 4 HIS B 27 NE2 86.1 98.3 94.0 REMARK 620 5 HOH B 196 O 83.6 90.8 85.8 168.9 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 501 O REMARK 620 2 HOH A 500 O 163.3 REMARK 620 3 HOH A 498 O 93.4 88.3 REMARK 620 4 HOH A 499 O 100.9 79.6 164.6 REMARK 620 5 HOH A 497 O 101.0 95.7 82.1 89.6 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 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 496 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 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 NE2 HIS A 75 FE FE2 A 195 1555 1555 2.10 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 NE2 HIS B 75 FE FE2 B 195 1555 1555 2.13 LINK NE2 HIS A 27 FE FE2 A 195 1555 1555 2.14 LINK NE2 HIS B 27 FE FE2 B 195 1555 1555 2.32 LINK FE FE2 A 195 O HOH A 505 1555 1555 2.27 LINK FE FE2 B 195 O HOH B 196 1555 1555 2.28 LINK MG MG A 496 O HOH A 501 1555 1555 2.07 LINK MG MG A 496 O HOH A 500 1555 1555 2.10 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 497 1555 1555 2.19 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 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 MASTER 312 0 5 26 6 0 6 6 0 0 0 30 END