HEADER OXIDOREDUCTASE 26-JAN-22 7TPY TITLE SELENIUM-FREE NITROGENASE FE PROTEIN (AV2) FROM A. VINELANDII TITLE 2 (NUCLEOTIDE CONTROL) COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITROGENASE IRON PROTEIN 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: NITROGENASE FE PROTEIN 1,NITROGENASE COMPONENT II, COMPND 5 NITROGENASE REDUCTASE; COMPND 6 EC: 1.18.6.1 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: AZOTOBACTER VINELANDII; SOURCE 3 ORGANISM_TAXID: 354 KEYWDS NITROGENASE, METALLOPROTEIN, IRON SULFUR CLUSTER, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR T.M.BUSCAGAN,J.T.KAISER,D.C.REES REVDAT 2 18-OCT-23 7TPY 1 REMARK REVDAT 1 14-SEP-22 7TPY 0 JRNL AUTH T.M.BUSCAGAN,J.T.KAISER,D.C.REES JRNL TITL SELENOCYANATE DERIVED SE-INCORPORATION INTO THE NITROGENASE JRNL TITL 2 FE PROTEIN CLUSTER. JRNL REF ELIFE V. 11 2022 JRNL REFN ESSN 2050-084X JRNL PMID 35904245 JRNL DOI 10.7554/ELIFE.79311 REMARK 2 REMARK 2 RESOLUTION. 1.48 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.19.2-4158 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.48 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 37.27 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.330 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 42412 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.174 REMARK 3 R VALUE (WORKING SET) : 0.173 REMARK 3 FREE R VALUE : 0.194 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 3867 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 37.2700 - 4.4900 1.00 2714 166 0.1839 0.2127 REMARK 3 2 4.4900 - 3.5700 1.00 2742 129 0.1482 0.1654 REMARK 3 3 3.5700 - 3.1200 1.00 2738 151 0.1573 0.1644 REMARK 3 4 3.1200 - 2.8300 1.00 2727 140 0.1681 0.1681 REMARK 3 5 2.8300 - 2.6300 1.00 2788 110 0.1612 0.2038 REMARK 3 6 2.6300 - 2.4700 1.00 2744 121 0.1727 0.1929 REMARK 3 7 2.4700 - 2.3500 1.00 2745 138 0.1539 0.1526 REMARK 3 8 2.3500 - 2.2500 1.00 2733 154 0.1637 0.2001 REMARK 3 9 2.2500 - 2.1600 1.00 2694 158 0.1540 0.1853 REMARK 3 10 2.1600 - 2.0900 1.00 2766 128 0.1563 0.1872 REMARK 3 11 2.0900 - 2.0200 1.00 2780 105 0.1579 0.1877 REMARK 3 12 2.0200 - 1.9600 1.00 2731 157 0.1618 0.2081 REMARK 3 13 1.9600 - 1.9100 1.00 2715 148 0.1586 0.1710 REMARK 3 14 1.9100 - 1.8600 1.00 2772 126 0.1730 0.1655 REMARK 3 15 1.8600 - 1.8200 1.00 2669 188 0.1651 0.1643 REMARK 3 16 1.8200 - 1.7800 1.00 2730 142 0.1783 0.2120 REMARK 3 17 1.7800 - 1.7500 1.00 2716 144 0.1836 0.2041 REMARK 3 18 1.7500 - 1.7100 1.00 2727 165 0.1956 0.2553 REMARK 3 19 1.7100 - 1.6800 0.99 2739 125 0.2027 0.2523 REMARK 3 20 1.6800 - 1.6600 0.99 2713 163 0.2076 0.2482 REMARK 3 21 1.6600 - 1.6300 1.00 2737 124 0.2152 0.2377 REMARK 3 22 1.6300 - 1.6000 1.00 2771 114 0.2178 0.2559 REMARK 3 23 1.6000 - 1.5800 1.00 2717 148 0.2326 0.2732 REMARK 3 24 1.5800 - 1.5600 1.00 2764 102 0.2417 0.2695 REMARK 3 25 1.5600 - 1.5400 1.00 2794 119 0.2499 0.2772 REMARK 3 26 1.5400 - 1.5200 1.00 2708 137 0.2636 0.2708 REMARK 3 27 1.5200 - 1.5000 1.00 2748 122 0.2814 0.2857 REMARK 3 28 1.5000 - 1.4800 1.00 2748 143 0.3070 0.3013 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.130 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.150 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.92 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.25 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7TPY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-JAN-22. REMARK 100 THE DEPOSITION ID IS D_1000262758. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-JAN-21 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL12-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97869, 0.98062 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS 0.7.4 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 42502 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.480 REMARK 200 RESOLUTION RANGE LOW (A) : 45.480 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 13.00 REMARK 200 R MERGE (I) : 0.07900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 16.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.48 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.51 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.7 REMARK 200 DATA REDUNDANCY IN SHELL : 13.00 REMARK 200 R MERGE FOR SHELL (I) : 1.67700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL 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: PDB ENTRY 6N4L REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 37.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.98 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 36-41% PEG400, 0.1-0.3 M SODIUM REMARK 280 CHLORIDE, 0.1 M HEPES, PH 7.5, 2.5 MM DITHIONITE, 0.17 MM CYMAL- REMARK 280 7, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 2 21 21 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,Y+1/2,-Z+1/2 REMARK 290 4555 -X,-Y+1/2,Z+1/2 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 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 36.86300 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 37.27150 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 36.86300 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 37.27150 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 5400 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20040 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -93.0 KCAL/MOL 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 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 -73.72600 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 483 LIES ON A SPECIAL POSITION. 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 0 REMARK 465 ILE A 273 REMARK 465 MET A 274 REMARK 465 GLU A 275 REMARK 465 VAL A 276 REMARK 465 GLU A 277 REMARK 465 ASP A 278 REMARK 465 GLU A 279 REMARK 465 SER A 280 REMARK 465 ILE A 281 REMARK 465 VAL A 282 REMARK 465 GLY A 283 REMARK 465 LYS A 284 REMARK 465 THR A 285 REMARK 465 ALA A 286 REMARK 465 GLU A 287 REMARK 465 GLU A 288 REMARK 465 VAL A 289 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 OE1 GLN A 206 O HOH A 401 1.92 REMARK 500 O HOH A 539 O HOH A 540 2.07 REMARK 500 O HOH A 496 O HOH A 526 2.09 REMARK 500 NH1 ARG A 191 O HOH A 402 2.10 REMARK 500 O HOH A 423 O HOH A 465 2.11 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 N ALA A 1 OE2 GLU A 263 3555 2.11 REMARK 500 OE2 GLU A 112 NZ LYS A 233 1655 2.12 REMARK 500 OE1 GLU A 110 NZ LYS A 235 1655 2.19 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 ALA A 53 -136.70 -154.39 REMARK 500 THR A 205 -150.53 -114.53 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 A 539 DISTANCE = 7.37 ANGSTROMS REMARK 525 HOH A 540 DISTANCE = 8.15 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 MG A 303 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 16 OG REMARK 620 2 ADP A 302 O2B 91.9 REMARK 620 3 HOH A 438 O 88.9 92.4 REMARK 620 4 HOH A 451 O 87.4 178.2 89.3 REMARK 620 5 HOH A 455 O 173.3 93.7 87.3 87.1 REMARK 620 6 HOH A 468 O 91.5 90.2 177.4 88.1 92.1 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 301 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 97 SG REMARK 620 2 SF4 A 301 S3 104.3 REMARK 620 3 SF4 A 301 S4 122.9 104.9 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 301 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 132 SG REMARK 620 2 SF4 A 301 S3 126.7 REMARK 620 3 SF4 A 301 S4 106.5 104.1 REMARK 620 N 1 2 DBREF 7TPY A 0 289 UNP P00459 NIFH1_AZOVI 1 290 SEQRES 1 A 290 MET ALA MET ARG GLN CYS ALA ILE TYR GLY LYS GLY GLY SEQRES 2 A 290 ILE GLY LYS SER THR THR THR GLN ASN LEU VAL ALA ALA SEQRES 3 A 290 LEU ALA GLU MET GLY LYS LYS VAL MET ILE VAL GLY CYS SEQRES 4 A 290 ASP PRO LYS ALA ASP SER THR ARG LEU ILE LEU HIS SER SEQRES 5 A 290 LYS ALA GLN ASN THR ILE MET GLU MET ALA ALA GLU ALA SEQRES 6 A 290 GLY THR VAL GLU ASP LEU GLU LEU GLU ASP VAL LEU LYS SEQRES 7 A 290 ALA GLY TYR GLY GLY VAL LYS CYS VAL GLU SER GLY GLY SEQRES 8 A 290 PRO GLU PRO GLY VAL GLY CYS ALA GLY ARG GLY VAL ILE SEQRES 9 A 290 THR ALA ILE ASN PHE LEU GLU GLU GLU GLY ALA TYR GLU SEQRES 10 A 290 ASP ASP LEU ASP PHE VAL PHE TYR ASP VAL LEU GLY ASP SEQRES 11 A 290 VAL VAL CYS GLY GLY PHE ALA MET PRO ILE ARG GLU ASN SEQRES 12 A 290 LYS ALA GLN GLU ILE TYR ILE VAL CYS SER GLY GLU MET SEQRES 13 A 290 MET ALA MET TYR ALA ALA ASN ASN ILE SER LYS GLY ILE SEQRES 14 A 290 VAL LYS TYR ALA ASN SER GLY SER VAL ARG LEU GLY GLY SEQRES 15 A 290 LEU ILE CYS ASN SER ARG ASN THR ASP ARG GLU ASP GLU SEQRES 16 A 290 LEU ILE ILE ALA LEU ALA ASN LYS LEU GLY THR GLN MET SEQRES 17 A 290 ILE HIS PHE VAL PRO ARG ASP ASN VAL VAL GLN ARG ALA SEQRES 18 A 290 GLU ILE ARG ARG MET THR VAL ILE GLU TYR ASP PRO LYS SEQRES 19 A 290 ALA LYS GLN ALA ASP GLU TYR ARG ALA LEU ALA ARG LYS SEQRES 20 A 290 VAL VAL ASP ASN LYS LEU LEU VAL ILE PRO ASN PRO ILE SEQRES 21 A 290 THR MET ASP GLU LEU GLU GLU LEU LEU MET GLU PHE GLY SEQRES 22 A 290 ILE MET GLU VAL GLU ASP GLU SER ILE VAL GLY LYS THR SEQRES 23 A 290 ALA GLU GLU VAL HET SF4 A 301 4 HET ADP A 302 39 HET MG A 303 1 HETNAM SF4 IRON/SULFUR CLUSTER HETNAM ADP ADENOSINE-5'-DIPHOSPHATE HETNAM MG MAGNESIUM ION FORMUL 2 SF4 FE4 S4 FORMUL 3 ADP C10 H15 N5 O10 P2 FORMUL 4 MG MG 2+ FORMUL 5 HOH *140(H2 O) HELIX 1 AA1 GLY A 14 GLY A 30 1 17 HELIX 2 AA2 THR A 45 HIS A 50 1 6 HELIX 3 AA3 THR A 56 GLY A 65 1 10 HELIX 4 AA4 THR A 66 LEU A 70 5 5 HELIX 5 AA5 GLU A 71 LEU A 76 1 6 HELIX 6 AA6 TYR A 80 GLY A 82 5 3 HELIX 7 AA7 GLY A 99 GLU A 112 1 14 HELIX 8 AA8 CYS A 132 PHE A 135 5 4 HELIX 9 AA9 ALA A 136 GLU A 141 1 6 HELIX 10 AB1 GLU A 154 TYR A 171 1 18 HELIX 11 AB2 ARG A 191 GLY A 204 1 14 HELIX 12 AB3 ASN A 215 ARG A 223 1 9 HELIX 13 AB4 THR A 226 ASP A 231 1 6 HELIX 14 AB5 ALA A 234 ASN A 250 1 17 HELIX 15 AB6 THR A 260 PHE A 271 1 12 SHEET 1 AA1 8 LYS A 77 ALA A 78 0 SHEET 2 AA1 8 LYS A 84 GLU A 87 -1 O CYS A 85 N LYS A 77 SHEET 3 AA1 8 VAL A 33 CYS A 38 1 N GLY A 37 O VAL A 86 SHEET 4 AA1 8 PHE A 121 VAL A 126 1 O PHE A 123 N VAL A 36 SHEET 5 AA1 8 ARG A 3 TYR A 8 1 N ILE A 7 O TYR A 124 SHEET 6 AA1 8 GLU A 146 CYS A 151 1 O TYR A 148 N ALA A 6 SHEET 7 AA1 8 ARG A 178 ASN A 185 1 O GLY A 180 N ILE A 147 SHEET 8 AA1 8 MET A 207 VAL A 211 1 O VAL A 211 N CYS A 184 LINK OG SER A 16 MG MG A 303 1555 1555 2.06 LINK SG CYS A 97 FE1 SF4 A 301 1555 1555 2.29 LINK SG CYS A 132 FE2 SF4 A 301 1555 1555 2.31 LINK O2B ADP A 302 MG MG A 303 1555 1555 2.09 LINK MG MG A 303 O HOH A 438 1555 1555 2.08 LINK MG MG A 303 O HOH A 451 1555 1555 2.16 LINK MG MG A 303 O HOH A 455 1555 1555 2.12 LINK MG MG A 303 O HOH A 468 1555 1555 2.09 CRYST1 45.438 73.726 74.543 90.00 90.00 90.00 P 2 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 0.022008 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013564 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013415 0.00000