1DGJ - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 24-NOV-99 1DGJ

TITLE CRYSTAL STRUCTURE OF THE ALDEHYDE OXIDOREDUCTASE FROM TITLE 2 DESULFOVIBRIO DESULFURICANS ATCC 27774

COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALDEHYDE OXIDOREDUCTASE; COMPND 3 CHAIN: A; COMPND 4 EC: 1.2.-.-; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOVIBRIO DESULFURICANS; SOURCE 3 ORGANISM_TAXID: 876; SOURCE 4 ATCC: 27774; SOURCE 5 EXPRESSION_SYSTEM: BACTERIA; SOURCE 6 EXPRESSION_SYSTEM_COMMON: EUBACTERIA; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 2

KEYWDS BETA HALF-BARREL, FOUR-HELIX BUNDLE, BETA BARREL, KEYWDS 2 OXIDOREDUCTASE

EXPDTA X-RAY DIFFRACTION

AUTHOR J.M.REBELO,S.MACIEIRA,J.M.DIAS,R.HUBER,M.J.ROMAO

REVDAT 3 24-FEB-09 1DGJ 1 VERSN REVDAT 2 01-APR-03 1DGJ 1 JRNL REVDAT 1 22-MAR-00 1DGJ 0

JRNL AUTH J.REBELO,S.MACIEIRA,J.M.DIAS,R.HUBER,C.S.ASCENSO, JRNL AUTH 2 F.RUSNAK,J.J.MOURA,I.MOURA,M.J.ROMAO JRNL TITL GENE SEQUENCE AND CRYSTAL STRUCTURE OF THE JRNL TITL 2 ALDEHYDE OXIDOREDUCTASE FROM DESULFOVIBRIO JRNL TITL 3 DESULFURICANS ATCC 27774. JRNL REF J.MOL.BIOL. V. 297 135 2000 JRNL REFN ISSN 0022-2836 JRNL PMID 10704312 JRNL DOI 10.1006/JMBI.2000.3552

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 24.80 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.2 REMARK 3 NUMBER OF REFLECTIONS : 190328 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.164 REMARK 3 FREE R VALUE : 0.224 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 947 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 6854 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 55 REMARK 3 SOLVENT ATOMS : 193 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 51.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 1.81 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1DGJ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-JAN-00. REMARK 100 THE RCSB ID CODE IS RCSB010067.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-JAN-97 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : 7.6 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 : ENRAF-NONIUS REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.542 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 : 190328 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 24.800 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 200 DATA REDUNDANCY : 10.000 REMARK 200 R MERGE (I) : 0.16900 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 6.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.56100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 61.54 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, MES, DIOXANE, PH REMARK 280 7.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298.0K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 REMARK 290 7555 Y,X,-Z+1/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+2/3 REMARK 290 10555 -Y,-X,-Z+5/6 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-Z+1/6 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 59.04967 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 118.09933 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 88.57450 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 147.62417 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 29.52483 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 59.04967 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 118.09933 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 147.62417 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 88.57450 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 29.52483 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 BIOLOGICAL ASSEMBLY IS A CRYSTALLOGRAPHIC DIMER.

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 ARG A 907

REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 132 CG CD CE NZ REMARK 480 LYS A 168 CB CG CD CE NZ REMARK 480 LYS A 232 CB CG CD CE NZ REMARK 480 LYS A 248 CD CE NZ REMARK 480 LYS A 301 CB CG CD CE NZ REMARK 480 ARG A 475 CB CG CD NE CZ NH1 NH2 REMARK 480 LYS A 478 CD CE NZ REMARK 480 GLU A 572 CG CD OE1 OE2 REMARK 480 LYS A 606 CB CG CD CE NZ REMARK 480 LYS A 752 CG CD CE NZ

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 THR A 34 -8.87 -49.22 REMARK 500 GLN A 99 -88.09 -95.98 REMARK 500 TYR A 142 -40.88 66.55 REMARK 500 ASN A 206 3.39 -61.25 REMARK 500 LEU A 254 -66.24 58.42 REMARK 500 SER A 390 129.25 -37.96 REMARK 500 ALA A 392 60.14 -161.00 REMARK 500 THR A 422 -34.96 -138.01 REMARK 500 PHE A 423 15.02 58.38 REMARK 500 THR A 430 -65.41 -105.24 REMARK 500 ARG A 535 100.89 -23.72 REMARK 500 TYR A 537 66.57 24.65 REMARK 500 GLU A 572 122.79 -38.54 REMARK 500 THR A 576 -161.00 -79.80 REMARK 500 PRO A 631 62.50 -68.79 REMARK 500 ASN A 686 72.19 45.37 REMARK 500 ASP A 687 107.07 -164.36 REMARK 500 PRO A 724 107.19 -43.86 REMARK 500 VAL A 779 -39.07 -39.48 REMARK 500 ASP A 823 153.75 177.03 REMARK 500 VAL A 867 -28.29 -149.34 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A1053 DISTANCE = 5.27 ANGSTROMS REMARK 525 HOH A1144 DISTANCE = 5.09 ANGSTROMS REMARK 525 HOH A1174 DISTANCE = 6.15 ANGSTROMS

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 2MO A 910 MO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MCN A 914 S8' REMARK 620 2 MCN A 914 S7' 82.4 REMARK 620 3 HOH A 912 O 88.5 156.1 REMARK 620 N 1 2

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FES A 908 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FES A 909 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 2MO A 910 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MCN A 914

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1ALO RELATED DB: PDB REMARK 900 1ALO IS AN HOMOLOGOUS PROTEIN FROM THE XANTHINE OXIDASE REMARK 900 FAMILY OF ENZYMES.

DBREF 1DGJ A 1 907 UNP Q9REC4 Q9REC4_DESDE 1 907

SEQRES 1 A 907 MET GLU THR LYS THR LEU ILE VAL ASN GLY MET ALA ARG SEQRES 2 A 907 ARG LEU LEU VAL SER PRO ASN ASP LEU LEU VAL ASP VAL SEQRES 3 A 907 LEU ARG SER GLN LEU GLN LEU THR SER VAL LYS VAL GLY SEQRES 4 A 907 CYS GLY LYS GLY GLN CYS GLY ALA CYS THR VAL ILE LEU SEQRES 5 A 907 ASP GLY LYS VAL VAL ARG ALA CYS ILE ILE LYS MET SER SEQRES 6 A 907 ARG VAL ALA GLU ASN ALA SER VAL THR THR LEU GLU GLY SEQRES 7 A 907 ILE GLY ALA PRO ASP CYS LEU HIS PRO LEU GLN HIS ALA SEQRES 8 A 907 TRP ILE GLN HIS GLY ALA ALA GLN CYS GLY PHE CYS THR SEQRES 9 A 907 PRO GLY PHE ILE VAL SER ALA LYS ALA LEU LEU ASP GLU SEQRES 10 A 907 ASN VAL ALA PRO SER ARG GLU ASP VAL ARG ASP TRP PHE SEQRES 11 A 907 GLN LYS HIS HIS ASN ILE CYS ARG CYS THR GLY TYR LYS SEQRES 12 A 907 PRO LEU VAL ASP ALA VAL MET ASP ALA ALA ALA ILE LEU SEQRES 13 A 907 ARG GLY GLU LYS THR VAL GLU GLU ILE SER PHE LYS MET SEQRES 14 A 907 PRO ALA ASP GLY ARG ILE TRP GLY SER SER ILE PRO ARG SEQRES 15 A 907 PRO SER ALA VAL ALA LYS VAL THR GLY LEU ALA GLU PHE SEQRES 16 A 907 GLY ALA ASP ALA ALA LEU ARG MET PRO GLU ASN THR LEU SEQRES 17 A 907 HIS LEU ALA LEU ALA GLN ALA LYS VAL SER HIS ALA LEU SEQRES 18 A 907 ILE LYS GLY ILE ASP THR SER GLU ALA GLU LYS MET PRO SEQRES 19 A 907 GLY VAL TYR LYS VAL LEU THR HIS LYS ASP VAL LYS GLY SEQRES 20 A 907 LYS ASN ARG ILE THR GLY LEU ILE THR PHE PRO THR ASN SEQRES 21 A 907 LYS GLY ASP GLY TRP GLU ARG PRO ILE LEU ASN ASP SER SEQRES 22 A 907 LYS ILE PHE GLN TYR GLY ASP ALA LEU ALA ILE VAL CYS SEQRES 23 A 907 ALA ASP SER GLU ALA ASN ALA ARG ALA ALA ALA GLU LYS SEQRES 24 A 907 VAL LYS PHE ASP LEU GLU LEU LEU PRO GLU TYR MET SER SEQRES 25 A 907 ALA PRO GLU ALA MET ALA PRO ASP ALA ILE GLU ILE HIS SEQRES 26 A 907 PRO GLY THR PRO ASN VAL TYR TYR ASP GLN LEU GLU GLU SEQRES 27 A 907 LYS GLY GLU ASP THR VAL PRO PHE PHE ASN ASP PRO ALA SEQRES 28 A 907 ASN VAL VAL ALA GLU GLY SER TYR TYR THR GLN ARG GLN SEQRES 29 A 907 PRO HIS LEU PRO ILE GLU PRO ASP VAL GLY TYR GLY TYR SEQRES 30 A 907 ILE ASN GLU GLN GLY GLN VAL VAL ILE HIS SER LYS SER SEQRES 31 A 907 VAL ALA ILE HIS LEU HIS ALA LEU MET ILE ALA PRO GLY SEQRES 32 A 907 LEU GLY LEU GLU PHE PRO LYS ASP LEU VAL LEU VAL GLN SEQRES 33 A 907 ASN THR THR GLY GLY THR PHE GLY TYR LYS PHE SER PRO SEQRES 34 A 907 THR MET GLU ALA LEU VAL GLY VAL ALA VAL MET ALA THR SEQRES 35 A 907 GLY ARG PRO CYS HIS LEU ARG TYR ASN TYR GLU GLN GLN SEQRES 36 A 907 GLN ASN TYR THR GLY LYS ARG SER PRO PHE TRP THR THR SEQRES 37 A 907 MET ARG TYR ALA ALA ASP ARG GLN GLY LYS ILE LEU ALA SEQRES 38 A 907 MET GLU THR ASP TRP SER VAL ASP HIS GLY PRO TYR SER SEQRES 39 A 907 GLU PHE GLY ASP LEU LEU THR LEU ARG GLY ALA GLN TYR SEQRES 40 A 907 ILE GLY ALA GLY TYR GLY ILE ALA ASN ILE ARG GLY THR SEQRES 41 A 907 GLY ARG THR VAL ALA THR ASN HIS CYS TRP GLY ALA ALA SEQRES 42 A 907 PHE ARG GLY TYR GLY ALA PRO GLU SER GLU PHE PRO SER SEQRES 43 A 907 GLU VAL LEU MET ASP GLU LEU ALA GLU LYS LEU GLY MET SEQRES 44 A 907 ASP PRO PHE GLU LEU ARG ALA LEU ASN CYS TYR ARG GLU SEQRES 45 A 907 GLY ASP THR THR SER SER GLY GLN ILE PRO GLU VAL MET SEQRES 46 A 907 SER LEU PRO GLU MET PHE ASP LYS MET ARG PRO TYR TYR SEQRES 47 A 907 GLU GLU SER LYS LYS ARG VAL LYS GLU ARG SER THR ALA SEQRES 48 A 907 GLU ILE LYS ARG GLY VAL GLY VAL ALA LEU GLY VAL TYR SEQRES 49 A 907 GLY ALA GLY LEU ASP GLY PRO ASP THR SER GLU ALA TRP SEQRES 50 A 907 VAL GLU LEU ASN ASP ASP GLY SER VAL THR LEU GLY ASN SEQRES 51 A 907 SER TRP GLU ASP HIS GLY GLN GLY ALA ASP ALA GLY SER SEQRES 52 A 907 LEU GLY THR ALA HIS GLU ALA LEU ARG PRO LEU GLY ILE SEQRES 53 A 907 THR PRO GLU ASN ILE HIS LEU VAL MET ASN ASP THR SER SEQRES 54 A 907 LYS THR PRO ASN SER GLY PRO ALA GLY GLY SER ARG SER SEQRES 55 A 907 GLN VAL VAL THR GLY ASN ALA ILE ARG VAL ALA CYS GLU SEQRES 56 A 907 MET LEU ILE GLU GLY MET ARG LYS PRO GLY GLY GLY PHE SEQRES 57 A 907 PHE THR PRO ALA GLU MET LYS ALA GLU GLY ARG PRO MET SEQRES 58 A 907 ARG TYR ASP GLY LYS TRP THR ALA PRO ALA LYS ASP CYS SEQRES 59 A 907 ASP ALA LYS GLY GLN GLY SER PRO PHE ALA CYS TYR MET SEQRES 60 A 907 TYR GLY LEU PHE LEU THR GLU VAL ALA VAL GLU VAL ALA SEQRES 61 A 907 THR GLY LYS ALA THR VAL GLU LYS MET VAL CYS VAL ALA SEQRES 62 A 907 ASP ILE GLY LYS ILE CYS ASN LYS LEU VAL VAL ASP GLY SEQRES 63 A 907 GLN ILE TYR GLY GLY LEU ALA GLN GLY VAL GLY LEU ALA SEQRES 64 A 907 LEU SER GLU ASP TYR GLU ASP LEU LYS LYS HIS SER THR SEQRES 65 A 907 MET GLY GLY ALA GLY ILE PRO SER ILE LYS MET ILE PRO SEQRES 66 A 907 ASP ASP ILE GLU ILE VAL TYR VAL GLU THR PRO ARG LYS SEQRES 67 A 907 ASP GLY PRO PHE GLY ALA SER GLY VAL GLY GLU MET PRO SEQRES 68 A 907 LEU THR ALA PRO HIS ALA ALA ILE ILE ASN GLY ILE TYR SEQRES 69 A 907 ASN ALA CYS GLY ALA ARG VAL ARG HIS LEU PRO ALA ARG SEQRES 70 A 907 PRO GLU LYS VAL LEU GLU ALA MET PRO ARG

HET FES A 908 4 HET FES A 909 4 HET 2MO A 910 3 HET MCN A 914 44

HETNAM FES FE2/S2 (INORGANIC) CLUSTER HETNAM 2MO MOLYBDENUM (IV)OXIDE HETNAM MCN PTERIN CYTOSINE DINUCLEOTIDE

FORMUL 2 FES 2(FE2 S2) FORMUL 4 2MO MO O2 FORMUL 5 MCN C19 H22 N8 O13 P2 S2 FORMUL 6 HOH *193(H2 O)

HELIX 1 1 LEU A 22 GLN A 30 1 9 HELIX 2 2 CYS A 60 ILE A 62 5 3 HELIX 3 3 MET A 64 VAL A 67 5 4 HELIX 4 4 THR A 75 ILE A 79 5 5 HELIX 5 5 HIS A 86 GLY A 96 1 11 HELIX 6 6 CYS A 103 ASN A 118 1 16 HELIX 7 7 SER A 122 HIS A 133 1 12 HELIX 8 8 TYR A 142 ARG A 157 1 16 HELIX 9 9 THR A 161 SER A 166 1 6 HELIX 10 10 SER A 184 THR A 190 1 7 HELIX 11 11 PHE A 195 ALA A 200 1 6 HELIX 12 12 LEU A 201 MET A 203 5 3 HELIX 13 13 THR A 227 MET A 233 1 7 HELIX 14 14 THR A 241 VAL A 245 5 5 HELIX 15 15 SER A 289 GLU A 298 1 10 HELIX 16 16 SER A 312 ALA A 318 1 7 HELIX 17 17 THR A 343 ASN A 348 1 6 HELIX 18 18 ALA A 392 GLY A 405 1 14 HELIX 19 19 GLY A 424 SER A 428 5 5 HELIX 20 20 MET A 431 GLY A 443 1 13 HELIX 21 21 ASN A 451 TYR A 458 1 8 HELIX 22 22 PHE A 496 ILE A 508 1 13 HELIX 23 23 GLY A 538 GLY A 558 1 21 HELIX 24 24 ASP A 560 CYS A 569 1 10 HELIX 25 25 SER A 586 GLU A 607 1 22 HELIX 26 26 GLY A 658 LEU A 671 1 14 HELIX 27 27 ARG A 672 GLY A 675 5 4 HELIX 28 28 THR A 677 GLU A 679 5 3 HELIX 29 29 VAL A 704 MET A 721 1 18 HELIX 30 30 THR A 730 GLU A 737 1 8 HELIX 31 31 ASN A 800 SER A 821 1 22 HELIX 32 32 SER A 840 ILE A 844 5 5 HELIX 33 33 GLY A 860 GLY A 863 5 4 HELIX 34 34 GLU A 869 THR A 873 5 5 HELIX 35 35 ALA A 874 GLY A 888 1 15 HELIX 36 36 ARG A 897 ALA A 904 1 8

SHEET 1 A 2 GLU A 2 THR A 5 0 SHEET 2 A 2 ARG A 14 VAL A 17 -1 N LEU A 15 O LYS A 4 SHEET 1 B 4 ILE A 7 VAL A 8 0 SHEET 2 B 4 SER A 72 THR A 74 1 N VAL A 73 O ILE A 7 SHEET 3 B 4 THR A 49 LEU A 52 -1 O ILE A 51 N THR A 74 SHEET 4 B 4 LYS A 55 ARG A 58 -1 O LYS A 55 N LEU A 52 SHEET 1 C 7 VAL A 236 LEU A 240 0 SHEET 2 C 7 ALA A 281 ALA A 287 -1 O ILE A 284 N LEU A 240 SHEET 3 C 7 LEU A 208 GLN A 214 -1 N HIS A 209 O ALA A 287 SHEET 4 C 7 CYS A 446 ARG A 449 1 O HIS A 447 N LEU A 210 SHEET 5 C 7 VAL A 373 ILE A 378 -1 O GLY A 374 N LEU A 448 SHEET 6 C 7 VAL A 384 SER A 388 -1 N VAL A 385 O TYR A 377 SHEET 7 C 7 LEU A 412 GLN A 416 1 O VAL A 413 N ILE A 386 SHEET 1 D 3 LYS A 274 ILE A 275 0 SHEET 2 D 3 ALA A 220 ASP A 226 -1 O ALA A 220 N ILE A 275 SHEET 3 D 3 LYS A 301 LEU A 306 -1 O LYS A 301 N ASP A 226 SHEET 1 E 2 ARG A 250 ILE A 251 0 SHEET 2 E 2 ARG A 267 PRO A 268 -1 O ARG A 267 N ILE A 251 SHEET 1 F 5 VAL A 331 LYS A 339 0 SHEET 2 F 5 ASN A 516 VAL A 524 -1 N ILE A 517 O LYS A 339 SHEET 3 F 5 ILE A 479 ASP A 489 1 O LEU A 480 N ASN A 516 SHEET 4 F 5 PHE A 465 ALA A 473 -1 N TRP A 466 O SER A 487 SHEET 5 F 5 VAL A 353 THR A 361 -1 N VAL A 353 O ALA A 473 SHEET 1 G 4 ILE A 613 ALA A 626 0 SHEET 2 G 4 CYS A 765 GLU A 778 -1 O CYS A 765 N ALA A 626 SHEET 3 G 4 ALA A 784 ASP A 794 -1 O THR A 785 N ALA A 776 SHEET 4 G 4 ILE A 848 TYR A 852 1 N GLU A 849 O MET A 789 SHEET 1 H 4 ILE A 681 MET A 685 0 SHEET 2 H 4 VAL A 646 ASN A 650 1 O VAL A 646 N HIS A 682 SHEET 3 H 4 THR A 633 LEU A 640 -1 O TRP A 637 N GLY A 649 SHEET 4 H 4 ARG A 742 THR A 748 -1 N TYR A 743 O VAL A 638

LINK FE1 FES A 908 SG CYS A 139 1555 1555 2.34 LINK FE1 FES A 908 SG CYS A 100 1555 1555 2.25 LINK FE2 FES A 908 SG CYS A 137 1555 1555 2.33 LINK FE2 FES A 908 SG CYS A 103 1555 1555 2.32 LINK FE2 FES A 909 SG CYS A 48 1555 1555 2.26 LINK FE1 FES A 909 SG CYS A 45 1555 1555 2.32 LINK FE2 FES A 909 SG CYS A 60 1555 1555 2.29 LINK FE1 FES A 909 SG CYS A 40 1555 1555 2.41 LINK MO 2MO A 910 S8' MCN A 914 1555 1555 2.48 LINK MO 2MO A 910 S7' MCN A 914 1555 1555 2.46 LINK MO 2MO A 910 O HOH A 912 1555 1555 2.21

CISPEP 1 PHE A 408 PRO A 409 0 2.13 CISPEP 2 LEU A 894 PRO A 895 0 0.04

SITE 1 AC1 8 GLN A 99 CYS A 100 GLY A 101 CYS A 103 SITE 2 AC1 8 CYS A 137 ARG A 138 CYS A 139 ILE A 369 SITE 1 AC2 10 GLY A 39 CYS A 40 GLY A 41 GLY A 43 SITE 2 AC2 10 GLN A 44 CYS A 45 GLY A 46 CYS A 48 SITE 3 AC2 10 ARG A 58 CYS A 60 SITE 1 AC3 8 GLY A 424 PHE A 534 ARG A 535 ALA A 697 SITE 2 AC3 8 GLY A 698 GLU A 869 HOH A 912 MCN A 914 SITE 1 AC4 33 GLN A 99 CYS A 139 THR A 422 PHE A 423 SITE 2 AC4 33 GLY A 424 ARG A 535 TRP A 652 HIS A 655 SITE 3 AC4 33 GLY A 656 GLN A 657 GLY A 658 GLY A 662 SITE 4 AC4 33 ALA A 697 GLY A 698 GLY A 699 SER A 700 SITE 5 AC4 33 ARG A 701 SER A 702 GLN A 703 ILE A 795 SITE 6 AC4 33 LYS A 797 CYS A 799 ASN A 800 VAL A 803 SITE 7 AC4 33 VAL A 804 GLN A 807 SER A 865 GLY A 866 SITE 8 AC4 33 VAL A 867 GLY A 868 GLU A 869 2MO A 910 SITE 9 AC4 33 HOH A1029

CRYST1 156.639 156.639 177.149 90.00 90.00 120.00 P 61 2 2 12

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 0.006384 0.003686 0.000000 0.00000

SCALE2 0.000000 0.007372 0.000000 0.00000

SCALE3 0.000000 0.000000 0.005645 0.00000