HEADER OXIDOREDUCTASE 26-JAN-22 7TPW TITLE SELENIUM-FREE NITROGENASE FE PROTEIN (AV2) FROM A. VINELANDII 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 7TPW 1 REMARK REVDAT 1 14-SEP-22 7TPW 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. 1.18 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) : 1.18 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.94 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 94.5 REMARK 3 NUMBER OF REFLECTIONS : 80089 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.142 REMARK 3 R VALUE (WORKING SET) : 0.141 REMARK 3 FREE R VALUE : 0.158 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.890 REMARK 3 FREE R VALUE TEST SET COUNT : 7500 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 38.9400 - 3.6700 1.00 5141 281 0.1487 0.1460 REMARK 3 2 3.6700 - 2.9100 1.00 5140 274 0.1471 0.1520 REMARK 3 3 2.9100 - 2.5400 1.00 5172 220 0.1529 0.1723 REMARK 3 4 2.5400 - 2.3100 1.00 5166 240 0.1406 0.1552 REMARK 3 5 2.3100 - 2.1400 1.00 5123 287 0.1301 0.1750 REMARK 3 6 2.1400 - 2.0200 1.00 5197 225 0.1310 0.1551 REMARK 3 7 2.0200 - 1.9200 1.00 5094 291 0.1302 0.1309 REMARK 3 8 1.9200 - 1.8300 1.00 5100 307 0.1297 0.1510 REMARK 3 9 1.8300 - 1.7600 1.00 5151 268 0.1286 0.1373 REMARK 3 10 1.7600 - 1.7000 1.00 5123 274 0.1222 0.1399 REMARK 3 11 1.7000 - 1.6500 1.00 5127 287 0.1167 0.1578 REMARK 3 12 1.6500 - 1.6000 1.00 5182 209 0.1218 0.1345 REMARK 3 13 1.6000 - 1.5600 1.00 5177 222 0.1201 0.1663 REMARK 3 14 1.5600 - 1.5200 1.00 5164 250 0.1238 0.1558 REMARK 3 15 1.5200 - 1.4900 1.00 5164 246 0.1246 0.1590 REMARK 3 16 1.4900 - 1.4600 1.00 5124 244 0.1266 0.1498 REMARK 3 17 1.4600 - 1.4300 1.00 5143 265 0.1290 0.1621 REMARK 3 18 1.4300 - 1.4000 1.00 5117 328 0.1282 0.1436 REMARK 3 19 1.4000 - 1.3700 1.00 5109 232 0.1295 0.1613 REMARK 3 20 1.3700 - 1.3500 1.00 5067 310 0.1332 0.1481 REMARK 3 21 1.3500 - 1.3300 0.99 5091 291 0.1359 0.1730 REMARK 3 22 1.3300 - 1.3100 0.99 5051 308 0.1459 0.1908 REMARK 3 23 1.3100 - 1.2900 0.98 5081 224 0.1593 0.1751 REMARK 3 24 1.2900 - 1.2700 0.96 4954 261 0.1717 0.1989 REMARK 3 25 1.2700 - 1.2500 0.91 4658 269 0.1792 0.2124 REMARK 3 26 1.2500 - 1.2400 0.84 4353 173 0.1930 0.2154 REMARK 3 27 1.2400 - 1.2200 0.79 4104 197 0.2062 0.2386 REMARK 3 28 1.2200 - 1.2100 0.74 3801 198 0.2208 0.2235 REMARK 3 29 1.2100 - 1.1900 0.68 3482 200 0.2424 0.2778 REMARK 3 30 1.1900 - 1.1800 0.50 2571 119 0.2874 0.3428 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) : 0.100 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 15.190 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 11.99 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.12 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 7TPW 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_1000262753. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 19-FEB-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 0.7.7 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 80169 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.180 REMARK 200 RESOLUTION RANGE LOW (A) : 45.590 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.9 REMARK 200 DATA REDUNDANCY : 11.90 REMARK 200 R MERGE (I) : 0.07400 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 16.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.18 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.20 REMARK 200 COMPLETENESS FOR SHELL (%) : 59.4 REMARK 200 DATA REDUNDANCY IN SHELL : 5.40 REMARK 200 R MERGE FOR SHELL (I) : 0.62700 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 (%): 39.05 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.02 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 37.26550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 37.48750 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.26550 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 37.48750 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: 5710 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19640 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -92.0 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 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 74.97500 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 549 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 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 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 MET A 274 CG SD CE REMARK 470 GLU A 275 CG CD OE1 OE2 REMARK 470 VAL A 276 CG1 CG2 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 O HOH A 640 O HOH A 642 2.06 REMARK 500 O HOH A 468 O HOH A 592 2.09 REMARK 500 OD1 ASN A 257 O HOH A 401 2.13 REMARK 500 O HOH A 405 O HOH A 426 2.13 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 O HOH A 566 O HOH A 592 3655 1.92 REMARK 500 O HOH A 525 O HOH A 534 3655 1.95 REMARK 500 O HOH A 580 O HOH A 598 3655 2.17 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 -133.45 -156.69 REMARK 500 VAL A 131 78.66 -117.51 REMARK 500 SER A 176 34.36 -144.87 REMARK 500 THR A 205 -147.39 -108.61 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 MG A 301 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 16 OG REMARK 620 2 ADP A 302 O1B 91.5 REMARK 620 3 HOH A 434 O 88.3 94.5 REMARK 620 4 HOH A 439 O 175.2 92.8 89.3 REMARK 620 5 HOH A 475 O 91.2 89.0 176.6 91.0 REMARK 620 6 HOH A 502 O 87.2 177.1 88.1 88.6 88.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 303 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 97 SG REMARK 620 2 SF4 A 303 S3 105.1 REMARK 620 3 SF4 A 303 S4 122.7 104.6 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 303 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 132 SG REMARK 620 2 SF4 A 303 S3 128.2 REMARK 620 3 SF4 A 303 S4 104.7 105.1 REMARK 620 N 1 2 DBREF 7TPW 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 MG A 301 1 HET ADP A 302 27 HET SF4 A 303 4 HETNAM MG MAGNESIUM ION HETNAM ADP ADENOSINE-5'-DIPHOSPHATE HETNAM SF4 IRON/SULFUR CLUSTER FORMUL 2 MG MG 2+ FORMUL 3 ADP C10 H15 N5 O10 P2 FORMUL 4 SF4 FE4 S4 FORMUL 5 HOH *243(H2 O) HELIX 1 AA1 GLY A 14 MET A 29 1 16 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 GLU A 141 1 10 HELIX 9 AA9 GLU A 154 TYR A 171 1 18 HELIX 10 AB1 ARG A 191 GLY A 204 1 14 HELIX 11 AB2 ASN A 215 ARG A 223 1 9 HELIX 12 AB3 THR A 226 ASP A 231 1 6 HELIX 13 AB4 ALA A 234 ASN A 250 1 17 HELIX 14 AB5 THR A 260 PHE A 271 1 12 HELIX 15 AB6 GLY A 272 VAL A 276 5 5 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 ASP A 125 N CYS A 38 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 301 1555 1555 2.05 LINK SG CYS A 97 FE1 SF4 A 303 1555 1555 2.29 LINK SG CYS A 132 FE2 SF4 A 303 1555 1555 2.28 LINK MG MG A 301 O1B ADP A 302 1555 1555 2.06 LINK MG MG A 301 O HOH A 434 1555 1555 2.06 LINK MG MG A 301 O HOH A 439 1555 1555 2.10 LINK MG MG A 301 O HOH A 475 1555 1555 2.06 LINK MG MG A 301 O HOH A 502 1555 1555 2.10 CRYST1 45.570 74.531 74.975 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 0.021944 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013417 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013338 0.00000