HEADER OXIDOREDUCTASE 29-JUN-23 8TC3 TITLE CRYOEM STRUCTURE OF NUCLEOTIDE-FREE FORM OF THE NITROGENASE IRON TITLE 2 PROTEIN FROM A. VINELANDII COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITROGENASE IRON PROTEIN,FLUORESCENT PROTEIN PLUM; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: NITROGENASE + C-TERMINAL MPLUM TAG; COMPND 5 SYNONYM: NITROGENASE IRON PROTEIN 1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: AZOTOBACTER VINELANDII DJ, DISCOSOMA SP. LW- SOURCE 3 2004; SOURCE 4 ORGANISM_TAXID: 322710, 301246; SOURCE 5 GENE: NIFH; SOURCE 6 EXPRESSION_SYSTEM: UNIDENTIFIED; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 32644 KEYWDS NITROGENASE, ATPASE, METALLOPROTEIN, IRON-SULFUR, OXIDOREDUCTASE EXPDTA ELECTRON MICROSCOPY AUTHOR R.A.WARMACK,D.C.REES REVDAT 1 17-APR-24 8TC3 0 JRNL AUTH R.A.WARMACK,B.B.WENKE,T.SPATZAL,D.C.REES JRNL TITL ANAEROBIC CRYOEM PROTOCOLS FOR AIR-SENSITIVE NITROGENASE JRNL TITL 2 PROTEINS. JRNL REF NAT PROTOC 2024 JRNL REFN ESSN 1750-2799 JRNL PMID 38575747 JRNL DOI 10.1038/S41596-024-00973-5 REMARK 2 REMARK 2 RESOLUTION. 2.57 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : NULL REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : NULL REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : NULL REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 2.570 REMARK 3 NUMBER OF PARTICLES : 552324 REMARK 3 CTF CORRECTION METHOD : PHASE FLIPPING AND AMPLITUDE REMARK 3 CORRECTION REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 8TC3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-JUN-23. REMARK 100 THE DEPOSITION ID IS D_1000275532. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : HOMODIMERIC NITROGENASE FE REMARK 245 -PROTEIN REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 2.00 REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.80 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : TFS KRIOS REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : -800.00 REMARK 245 MAXIMUM DEFOCUS (NM) : -3000.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 6000.00 REMARK 245 ILLUMINATION MODE : OTHER REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. 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 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 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 ALA A 1 REMARK 465 ASP A 117 REMARK 465 ASP A 118 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 465 GLY A 290 REMARK 465 GLY A 291 REMARK 465 GLY A 292 REMARK 465 VAL A 293 REMARK 465 SER A 294 REMARK 465 LYS A 295 REMARK 465 GLY A 296 REMARK 465 GLU A 297 REMARK 465 GLU A 298 REMARK 465 VAL A 299 REMARK 465 ILE A 300 REMARK 465 LYS A 301 REMARK 465 GLU A 302 REMARK 465 PHE A 303 REMARK 465 MET A 304 REMARK 465 ARG A 305 REMARK 465 PHE A 306 REMARK 465 LYS A 307 REMARK 465 GLU A 308 REMARK 465 HIS A 309 REMARK 465 MET A 310 REMARK 465 GLU A 311 REMARK 465 GLY A 312 REMARK 465 SER A 313 REMARK 465 VAL A 314 REMARK 465 ASN A 315 REMARK 465 GLY A 316 REMARK 465 HIS A 317 REMARK 465 GLU A 318 REMARK 465 PHE A 319 REMARK 465 GLU A 320 REMARK 465 ILE A 321 REMARK 465 GLU A 322 REMARK 465 GLY A 323 REMARK 465 GLU A 324 REMARK 465 GLY A 325 REMARK 465 GLU A 326 REMARK 465 GLY A 327 REMARK 465 ARG A 328 REMARK 465 PRO A 329 REMARK 465 TYR A 330 REMARK 465 GLU A 331 REMARK 465 GLY A 332 REMARK 465 THR A 333 REMARK 465 GLN A 334 REMARK 465 THR A 335 REMARK 465 ALA A 336 REMARK 465 ARG A 337 REMARK 465 LEU A 338 REMARK 465 LYS A 339 REMARK 465 VAL A 340 REMARK 465 THR A 341 REMARK 465 LYS A 342 REMARK 465 GLY A 343 REMARK 465 GLY A 344 REMARK 465 PRO A 345 REMARK 465 LEU A 346 REMARK 465 PRO A 347 REMARK 465 PHE A 348 REMARK 465 ALA A 349 REMARK 465 TRP A 350 REMARK 465 ASP A 351 REMARK 465 ILE A 352 REMARK 465 LEU A 353 REMARK 465 SER A 354 REMARK 465 PRO A 355 REMARK 465 GLN A 356 REMARK 465 ILE A 357 REMARK 465 MET A 358 REMARK 465 TYR A 359 REMARK 465 GLY A 360 REMARK 465 SER A 361 REMARK 465 LYS A 362 REMARK 465 ALA A 363 REMARK 465 TYR A 364 REMARK 465 VAL A 365 REMARK 465 LYS A 366 REMARK 465 HIS A 367 REMARK 465 PRO A 368 REMARK 465 ALA A 369 REMARK 465 ASP A 370 REMARK 465 ILE A 371 REMARK 465 PRO A 372 REMARK 465 ASP A 373 REMARK 465 TYR A 374 REMARK 465 LEU A 375 REMARK 465 LYS A 376 REMARK 465 LEU A 377 REMARK 465 SER A 378 REMARK 465 PHE A 379 REMARK 465 PRO A 380 REMARK 465 GLU A 381 REMARK 465 GLY A 382 REMARK 465 PHE A 383 REMARK 465 LYS A 384 REMARK 465 TRP A 385 REMARK 465 GLU A 386 REMARK 465 ARG A 387 REMARK 465 VAL A 388 REMARK 465 MET A 389 REMARK 465 ASN A 390 REMARK 465 PHE A 391 REMARK 465 GLU A 392 REMARK 465 ASP A 393 REMARK 465 GLY A 394 REMARK 465 GLY A 395 REMARK 465 VAL A 396 REMARK 465 VAL A 397 REMARK 465 THR A 398 REMARK 465 VAL A 399 REMARK 465 THR A 400 REMARK 465 GLN A 401 REMARK 465 ASP A 402 REMARK 465 SER A 403 REMARK 465 SER A 404 REMARK 465 LEU A 405 REMARK 465 GLN A 406 REMARK 465 ASP A 407 REMARK 465 GLY A 408 REMARK 465 GLU A 409 REMARK 465 PHE A 410 REMARK 465 ILE A 411 REMARK 465 TYR A 412 REMARK 465 LYS A 413 REMARK 465 VAL A 414 REMARK 465 LYS A 415 REMARK 465 VAL A 416 REMARK 465 ARG A 417 REMARK 465 GLY A 418 REMARK 465 THR A 419 REMARK 465 ASN A 420 REMARK 465 PHE A 421 REMARK 465 PRO A 422 REMARK 465 SER A 423 REMARK 465 ASP A 424 REMARK 465 GLY A 425 REMARK 465 PRO A 426 REMARK 465 VAL A 427 REMARK 465 MET A 428 REMARK 465 GLN A 429 REMARK 465 LYS A 430 REMARK 465 LYS A 431 REMARK 465 THR A 432 REMARK 465 MET A 433 REMARK 465 GLY A 434 REMARK 465 TRP A 435 REMARK 465 GLU A 436 REMARK 465 ALA A 437 REMARK 465 SER A 438 REMARK 465 SER A 439 REMARK 465 GLU A 440 REMARK 465 ARG A 441 REMARK 465 MET A 442 REMARK 465 TYR A 443 REMARK 465 PRO A 444 REMARK 465 GLU A 445 REMARK 465 ASP A 446 REMARK 465 GLY A 447 REMARK 465 ALA A 448 REMARK 465 LEU A 449 REMARK 465 LYS A 450 REMARK 465 GLY A 451 REMARK 465 GLU A 452 REMARK 465 MET A 453 REMARK 465 LYS A 454 REMARK 465 MET A 455 REMARK 465 ARG A 456 REMARK 465 LEU A 457 REMARK 465 ARG A 458 REMARK 465 LEU A 459 REMARK 465 LYS A 460 REMARK 465 ASP A 461 REMARK 465 GLY A 462 REMARK 465 GLY A 463 REMARK 465 HIS A 464 REMARK 465 TYR A 465 REMARK 465 ASP A 466 REMARK 465 ALA A 467 REMARK 465 GLU A 468 REMARK 465 VAL A 469 REMARK 465 LYS A 470 REMARK 465 THR A 471 REMARK 465 THR A 472 REMARK 465 TYR A 473 REMARK 465 MET A 474 REMARK 465 ALA A 475 REMARK 465 LYS A 476 REMARK 465 LYS A 477 REMARK 465 PRO A 478 REMARK 465 VAL A 479 REMARK 465 GLN A 480 REMARK 465 LEU A 481 REMARK 465 PRO A 482 REMARK 465 GLY A 483 REMARK 465 ALA A 484 REMARK 465 TYR A 485 REMARK 465 LYS A 486 REMARK 465 THR A 487 REMARK 465 ASP A 488 REMARK 465 ILE A 489 REMARK 465 LYS A 490 REMARK 465 LEU A 491 REMARK 465 ASP A 492 REMARK 465 ILE A 493 REMARK 465 THR A 494 REMARK 465 SER A 495 REMARK 465 HIS A 496 REMARK 465 ASN A 497 REMARK 465 GLU A 498 REMARK 465 ASP A 499 REMARK 465 TYR A 500 REMARK 465 THR A 501 REMARK 465 ILE A 502 REMARK 465 VAL A 503 REMARK 465 GLU A 504 REMARK 465 GLN A 505 REMARK 465 TYR A 506 REMARK 465 GLU A 507 REMARK 465 ARG A 508 REMARK 465 ALA A 509 REMARK 465 GLU A 510 REMARK 465 GLY A 511 REMARK 465 ARG A 512 REMARK 465 HIS A 513 REMARK 465 SER A 514 REMARK 465 THR A 515 REMARK 465 GLY A 516 REMARK 465 ALA A 517 REMARK 465 MET B 0 REMARK 465 ALA B 1 REMARK 465 ASP B 117 REMARK 465 ASP B 118 REMARK 465 GLU B 275 REMARK 465 VAL B 276 REMARK 465 GLU B 277 REMARK 465 ASP B 278 REMARK 465 GLU B 279 REMARK 465 SER B 280 REMARK 465 ILE B 281 REMARK 465 VAL B 282 REMARK 465 GLY B 283 REMARK 465 LYS B 284 REMARK 465 THR B 285 REMARK 465 ALA B 286 REMARK 465 GLU B 287 REMARK 465 GLU B 288 REMARK 465 VAL B 289 REMARK 465 GLY B 290 REMARK 465 GLY B 291 REMARK 465 GLY B 292 REMARK 465 VAL B 293 REMARK 465 SER B 294 REMARK 465 LYS B 295 REMARK 465 GLY B 296 REMARK 465 GLU B 297 REMARK 465 GLU B 298 REMARK 465 VAL B 299 REMARK 465 ILE B 300 REMARK 465 LYS B 301 REMARK 465 GLU B 302 REMARK 465 PHE B 303 REMARK 465 MET B 304 REMARK 465 ARG B 305 REMARK 465 PHE B 306 REMARK 465 LYS B 307 REMARK 465 GLU B 308 REMARK 465 HIS B 309 REMARK 465 MET B 310 REMARK 465 GLU B 311 REMARK 465 GLY B 312 REMARK 465 SER B 313 REMARK 465 VAL B 314 REMARK 465 ASN B 315 REMARK 465 GLY B 316 REMARK 465 HIS B 317 REMARK 465 GLU B 318 REMARK 465 PHE B 319 REMARK 465 GLU B 320 REMARK 465 ILE B 321 REMARK 465 GLU B 322 REMARK 465 GLY B 323 REMARK 465 GLU B 324 REMARK 465 GLY B 325 REMARK 465 GLU B 326 REMARK 465 GLY B 327 REMARK 465 ARG B 328 REMARK 465 PRO B 329 REMARK 465 TYR B 330 REMARK 465 GLU B 331 REMARK 465 GLY B 332 REMARK 465 THR B 333 REMARK 465 GLN B 334 REMARK 465 THR B 335 REMARK 465 ALA B 336 REMARK 465 ARG B 337 REMARK 465 LEU B 338 REMARK 465 LYS B 339 REMARK 465 VAL B 340 REMARK 465 THR B 341 REMARK 465 LYS B 342 REMARK 465 GLY B 343 REMARK 465 GLY B 344 REMARK 465 PRO B 345 REMARK 465 LEU B 346 REMARK 465 PRO B 347 REMARK 465 PHE B 348 REMARK 465 ALA B 349 REMARK 465 TRP B 350 REMARK 465 ASP B 351 REMARK 465 ILE B 352 REMARK 465 LEU B 353 REMARK 465 SER B 354 REMARK 465 PRO B 355 REMARK 465 GLN B 356 REMARK 465 ILE B 357 REMARK 465 MET B 358 REMARK 465 TYR B 359 REMARK 465 GLY B 360 REMARK 465 SER B 361 REMARK 465 LYS B 362 REMARK 465 ALA B 363 REMARK 465 TYR B 364 REMARK 465 VAL B 365 REMARK 465 LYS B 366 REMARK 465 HIS B 367 REMARK 465 PRO B 368 REMARK 465 ALA B 369 REMARK 465 ASP B 370 REMARK 465 ILE B 371 REMARK 465 PRO B 372 REMARK 465 ASP B 373 REMARK 465 TYR B 374 REMARK 465 LEU B 375 REMARK 465 LYS B 376 REMARK 465 LEU B 377 REMARK 465 SER B 378 REMARK 465 PHE B 379 REMARK 465 PRO B 380 REMARK 465 GLU B 381 REMARK 465 GLY B 382 REMARK 465 PHE B 383 REMARK 465 LYS B 384 REMARK 465 TRP B 385 REMARK 465 GLU B 386 REMARK 465 ARG B 387 REMARK 465 VAL B 388 REMARK 465 MET B 389 REMARK 465 ASN B 390 REMARK 465 PHE B 391 REMARK 465 GLU B 392 REMARK 465 ASP B 393 REMARK 465 GLY B 394 REMARK 465 GLY B 395 REMARK 465 VAL B 396 REMARK 465 VAL B 397 REMARK 465 THR B 398 REMARK 465 VAL B 399 REMARK 465 THR B 400 REMARK 465 GLN B 401 REMARK 465 ASP B 402 REMARK 465 SER B 403 REMARK 465 SER B 404 REMARK 465 LEU B 405 REMARK 465 GLN B 406 REMARK 465 ASP B 407 REMARK 465 GLY B 408 REMARK 465 GLU B 409 REMARK 465 PHE B 410 REMARK 465 ILE B 411 REMARK 465 TYR B 412 REMARK 465 LYS B 413 REMARK 465 VAL B 414 REMARK 465 LYS B 415 REMARK 465 VAL B 416 REMARK 465 ARG B 417 REMARK 465 GLY B 418 REMARK 465 THR B 419 REMARK 465 ASN B 420 REMARK 465 PHE B 421 REMARK 465 PRO B 422 REMARK 465 SER B 423 REMARK 465 ASP B 424 REMARK 465 GLY B 425 REMARK 465 PRO B 426 REMARK 465 VAL B 427 REMARK 465 MET B 428 REMARK 465 GLN B 429 REMARK 465 LYS B 430 REMARK 465 LYS B 431 REMARK 465 THR B 432 REMARK 465 MET B 433 REMARK 465 GLY B 434 REMARK 465 TRP B 435 REMARK 465 GLU B 436 REMARK 465 ALA B 437 REMARK 465 SER B 438 REMARK 465 SER B 439 REMARK 465 GLU B 440 REMARK 465 ARG B 441 REMARK 465 MET B 442 REMARK 465 TYR B 443 REMARK 465 PRO B 444 REMARK 465 GLU B 445 REMARK 465 ASP B 446 REMARK 465 GLY B 447 REMARK 465 ALA B 448 REMARK 465 LEU B 449 REMARK 465 LYS B 450 REMARK 465 GLY B 451 REMARK 465 GLU B 452 REMARK 465 MET B 453 REMARK 465 LYS B 454 REMARK 465 MET B 455 REMARK 465 ARG B 456 REMARK 465 LEU B 457 REMARK 465 ARG B 458 REMARK 465 LEU B 459 REMARK 465 LYS B 460 REMARK 465 ASP B 461 REMARK 465 GLY B 462 REMARK 465 GLY B 463 REMARK 465 HIS B 464 REMARK 465 TYR B 465 REMARK 465 ASP B 466 REMARK 465 ALA B 467 REMARK 465 GLU B 468 REMARK 465 VAL B 469 REMARK 465 LYS B 470 REMARK 465 THR B 471 REMARK 465 THR B 472 REMARK 465 TYR B 473 REMARK 465 MET B 474 REMARK 465 ALA B 475 REMARK 465 LYS B 476 REMARK 465 LYS B 477 REMARK 465 PRO B 478 REMARK 465 VAL B 479 REMARK 465 GLN B 480 REMARK 465 LEU B 481 REMARK 465 PRO B 482 REMARK 465 GLY B 483 REMARK 465 ALA B 484 REMARK 465 TYR B 485 REMARK 465 LYS B 486 REMARK 465 THR B 487 REMARK 465 ASP B 488 REMARK 465 ILE B 489 REMARK 465 LYS B 490 REMARK 465 LEU B 491 REMARK 465 ASP B 492 REMARK 465 ILE B 493 REMARK 465 THR B 494 REMARK 465 SER B 495 REMARK 465 HIS B 496 REMARK 465 ASN B 497 REMARK 465 GLU B 498 REMARK 465 ASP B 499 REMARK 465 TYR B 500 REMARK 465 THR B 501 REMARK 465 ILE B 502 REMARK 465 VAL B 503 REMARK 465 GLU B 504 REMARK 465 GLN B 505 REMARK 465 TYR B 506 REMARK 465 GLU B 507 REMARK 465 ARG B 508 REMARK 465 ALA B 509 REMARK 465 GLU B 510 REMARK 465 GLY B 511 REMARK 465 ARG B 512 REMARK 465 HIS B 513 REMARK 465 SER B 514 REMARK 465 THR B 515 REMARK 465 GLY B 516 REMARK 465 ALA B 517 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 205 -169.85 -100.96 REMARK 500 THR B 205 -168.31 -124.77 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 SF4 B 601 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 97 SG REMARK 620 2 SF4 B 601 S2 121.0 REMARK 620 3 SF4 B 601 S3 108.8 104.1 REMARK 620 4 SF4 B 601 S4 113.0 104.2 104.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 B 601 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 132 SG REMARK 620 2 SF4 B 601 S1 119.4 REMARK 620 3 SF4 B 601 S3 107.3 104.1 REMARK 620 4 SF4 B 601 S4 116.2 104.1 104.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 B 601 FE3 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 97 SG REMARK 620 2 SF4 B 601 S1 111.4 REMARK 620 3 SF4 B 601 S2 113.4 104.2 REMARK 620 4 SF4 B 601 S4 118.3 104.1 104.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 B 601 FE4 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 132 SG REMARK 620 2 SF4 B 601 S1 109.1 REMARK 620 3 SF4 B 601 S2 119.0 104.2 REMARK 620 4 SF4 B 601 S3 114.8 104.1 104.1 REMARK 620 N 1 2 3 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-41151 RELATED DB: EMDB REMARK 900 CRYOEM STRUCTURE OF NUCLEOTIDE-FREE FORM OF THE NITROGENASE IRON REMARK 900 PROTEIN FROM A. VINELANDII DBREF 8TC3 A 0 289 UNP C1DGZ6 C1DGZ6_AZOVD 1 290 DBREF 8TC3 A 293 517 UNP Q5S3G7 Q5S3G7_9CNID 2 226 DBREF 8TC3 B 0 289 UNP C1DGZ6 C1DGZ6_AZOVD 1 290 DBREF 8TC3 B 293 517 UNP Q5S3G7 Q5S3G7_9CNID 2 226 SEQADV 8TC3 GLY A 290 UNP C1DGZ6 LINKER SEQADV 8TC3 GLY A 291 UNP C1DGZ6 LINKER SEQADV 8TC3 GLY A 292 UNP C1DGZ6 LINKER SEQADV 8TC3 GLY B 290 UNP C1DGZ6 LINKER SEQADV 8TC3 GLY B 291 UNP C1DGZ6 LINKER SEQADV 8TC3 GLY B 292 UNP C1DGZ6 LINKER SEQRES 1 A 518 MET ALA MET ARG GLN CYS ALA ILE TYR GLY LYS GLY GLY SEQRES 2 A 518 ILE GLY LYS SER THR THR THR GLN ASN LEU VAL ALA ALA SEQRES 3 A 518 LEU ALA GLU MET GLY LYS LYS VAL MET ILE VAL GLY CYS SEQRES 4 A 518 ASP PRO LYS ALA ASP SER THR ARG LEU ILE LEU HIS SER SEQRES 5 A 518 LYS ALA GLN ASN THR ILE MET GLU MET ALA ALA GLU ALA SEQRES 6 A 518 GLY THR VAL GLU ASP LEU GLU LEU GLU ASP VAL LEU LYS SEQRES 7 A 518 ALA GLY TYR GLY GLY VAL LYS CYS VAL GLU SER GLY GLY SEQRES 8 A 518 PRO GLU PRO GLY VAL GLY CYS ALA GLY ARG GLY VAL ILE SEQRES 9 A 518 THR ALA ILE ASN PHE LEU GLU GLU GLU GLY ALA TYR GLU SEQRES 10 A 518 ASP ASP LEU ASP PHE VAL PHE TYR ASP VAL LEU GLY ASP SEQRES 11 A 518 VAL VAL CYS GLY GLY PHE ALA MET PRO ILE ARG GLU ASN SEQRES 12 A 518 LYS ALA GLN GLU ILE TYR ILE VAL CYS SER GLY GLU MET SEQRES 13 A 518 MET ALA MET TYR ALA ALA ASN ASN ILE SER LYS GLY ILE SEQRES 14 A 518 VAL LYS TYR ALA ASN SER GLY SER VAL ARG LEU GLY GLY SEQRES 15 A 518 LEU ILE CYS ASN SER ARG ASN THR ASP ARG GLU ASP GLU SEQRES 16 A 518 LEU ILE ILE ALA LEU ALA ASN LYS LEU GLY THR GLN MET SEQRES 17 A 518 ILE HIS PHE VAL PRO ARG ASP ASN VAL VAL GLN ARG ALA SEQRES 18 A 518 GLU ILE ARG ARG MET THR VAL ILE GLU TYR ASP PRO LYS SEQRES 19 A 518 ALA LYS GLN ALA ASP GLU TYR ARG ALA LEU ALA ARG LYS SEQRES 20 A 518 VAL VAL ASP ASN LYS LEU LEU VAL ILE PRO ASN PRO ILE SEQRES 21 A 518 THR MET ASP GLU LEU GLU GLU LEU LEU MET GLU PHE GLY SEQRES 22 A 518 ILE MET GLU VAL GLU ASP GLU SER ILE VAL GLY LYS THR SEQRES 23 A 518 ALA GLU GLU VAL GLY GLY GLY VAL SER LYS GLY GLU GLU SEQRES 24 A 518 VAL ILE LYS GLU PHE MET ARG PHE LYS GLU HIS MET GLU SEQRES 25 A 518 GLY SER VAL ASN GLY HIS GLU PHE GLU ILE GLU GLY GLU SEQRES 26 A 518 GLY GLU GLY ARG PRO TYR GLU GLY THR GLN THR ALA ARG SEQRES 27 A 518 LEU LYS VAL THR LYS GLY GLY PRO LEU PRO PHE ALA TRP SEQRES 28 A 518 ASP ILE LEU SER PRO GLN ILE MET TYR GLY SER LYS ALA SEQRES 29 A 518 TYR VAL LYS HIS PRO ALA ASP ILE PRO ASP TYR LEU LYS SEQRES 30 A 518 LEU SER PHE PRO GLU GLY PHE LYS TRP GLU ARG VAL MET SEQRES 31 A 518 ASN PHE GLU ASP GLY GLY VAL VAL THR VAL THR GLN ASP SEQRES 32 A 518 SER SER LEU GLN ASP GLY GLU PHE ILE TYR LYS VAL LYS SEQRES 33 A 518 VAL ARG GLY THR ASN PHE PRO SER ASP GLY PRO VAL MET SEQRES 34 A 518 GLN LYS LYS THR MET GLY TRP GLU ALA SER SER GLU ARG SEQRES 35 A 518 MET TYR PRO GLU ASP GLY ALA LEU LYS GLY GLU MET LYS SEQRES 36 A 518 MET ARG LEU ARG LEU LYS ASP GLY GLY HIS TYR ASP ALA SEQRES 37 A 518 GLU VAL LYS THR THR TYR MET ALA LYS LYS PRO VAL GLN SEQRES 38 A 518 LEU PRO GLY ALA TYR LYS THR ASP ILE LYS LEU ASP ILE SEQRES 39 A 518 THR SER HIS ASN GLU ASP TYR THR ILE VAL GLU GLN TYR SEQRES 40 A 518 GLU ARG ALA GLU GLY ARG HIS SER THR GLY ALA SEQRES 1 B 518 MET ALA MET ARG GLN CYS ALA ILE TYR GLY LYS GLY GLY SEQRES 2 B 518 ILE GLY LYS SER THR THR THR GLN ASN LEU VAL ALA ALA SEQRES 3 B 518 LEU ALA GLU MET GLY LYS LYS VAL MET ILE VAL GLY CYS SEQRES 4 B 518 ASP PRO LYS ALA ASP SER THR ARG LEU ILE LEU HIS SER SEQRES 5 B 518 LYS ALA GLN ASN THR ILE MET GLU MET ALA ALA GLU ALA SEQRES 6 B 518 GLY THR VAL GLU ASP LEU GLU LEU GLU ASP VAL LEU LYS SEQRES 7 B 518 ALA GLY TYR GLY GLY VAL LYS CYS VAL GLU SER GLY GLY SEQRES 8 B 518 PRO GLU PRO GLY VAL GLY CYS ALA GLY ARG GLY VAL ILE SEQRES 9 B 518 THR ALA ILE ASN PHE LEU GLU GLU GLU GLY ALA TYR GLU SEQRES 10 B 518 ASP ASP LEU ASP PHE VAL PHE TYR ASP VAL LEU GLY ASP SEQRES 11 B 518 VAL VAL CYS GLY GLY PHE ALA MET PRO ILE ARG GLU ASN SEQRES 12 B 518 LYS ALA GLN GLU ILE TYR ILE VAL CYS SER GLY GLU MET SEQRES 13 B 518 MET ALA MET TYR ALA ALA ASN ASN ILE SER LYS GLY ILE SEQRES 14 B 518 VAL LYS TYR ALA ASN SER GLY SER VAL ARG LEU GLY GLY SEQRES 15 B 518 LEU ILE CYS ASN SER ARG ASN THR ASP ARG GLU ASP GLU SEQRES 16 B 518 LEU ILE ILE ALA LEU ALA ASN LYS LEU GLY THR GLN MET SEQRES 17 B 518 ILE HIS PHE VAL PRO ARG ASP ASN VAL VAL GLN ARG ALA SEQRES 18 B 518 GLU ILE ARG ARG MET THR VAL ILE GLU TYR ASP PRO LYS SEQRES 19 B 518 ALA LYS GLN ALA ASP GLU TYR ARG ALA LEU ALA ARG LYS SEQRES 20 B 518 VAL VAL ASP ASN LYS LEU LEU VAL ILE PRO ASN PRO ILE SEQRES 21 B 518 THR MET ASP GLU LEU GLU GLU LEU LEU MET GLU PHE GLY SEQRES 22 B 518 ILE MET GLU VAL GLU ASP GLU SER ILE VAL GLY LYS THR SEQRES 23 B 518 ALA GLU GLU VAL GLY GLY GLY VAL SER LYS GLY GLU GLU SEQRES 24 B 518 VAL ILE LYS GLU PHE MET ARG PHE LYS GLU HIS MET GLU SEQRES 25 B 518 GLY SER VAL ASN GLY HIS GLU PHE GLU ILE GLU GLY GLU SEQRES 26 B 518 GLY GLU GLY ARG PRO TYR GLU GLY THR GLN THR ALA ARG SEQRES 27 B 518 LEU LYS VAL THR LYS GLY GLY PRO LEU PRO PHE ALA TRP SEQRES 28 B 518 ASP ILE LEU SER PRO GLN ILE MET TYR GLY SER LYS ALA SEQRES 29 B 518 TYR VAL LYS HIS PRO ALA ASP ILE PRO ASP TYR LEU LYS SEQRES 30 B 518 LEU SER PHE PRO GLU GLY PHE LYS TRP GLU ARG VAL MET SEQRES 31 B 518 ASN PHE GLU ASP GLY GLY VAL VAL THR VAL THR GLN ASP SEQRES 32 B 518 SER SER LEU GLN ASP GLY GLU PHE ILE TYR LYS VAL LYS SEQRES 33 B 518 VAL ARG GLY THR ASN PHE PRO SER ASP GLY PRO VAL MET SEQRES 34 B 518 GLN LYS LYS THR MET GLY TRP GLU ALA SER SER GLU ARG SEQRES 35 B 518 MET TYR PRO GLU ASP GLY ALA LEU LYS GLY GLU MET LYS SEQRES 36 B 518 MET ARG LEU ARG LEU LYS ASP GLY GLY HIS TYR ASP ALA SEQRES 37 B 518 GLU VAL LYS THR THR TYR MET ALA LYS LYS PRO VAL GLN SEQRES 38 B 518 LEU PRO GLY ALA TYR LYS THR ASP ILE LYS LEU ASP ILE SEQRES 39 B 518 THR SER HIS ASN GLU ASP TYR THR ILE VAL GLU GLN TYR SEQRES 40 B 518 GLU ARG ALA GLU GLY ARG HIS SER THR GLY ALA HET SF4 B 601 8 HETNAM SF4 IRON/SULFUR CLUSTER FORMUL 3 SF4 FE4 S4 FORMUL 4 HOH *17(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 CYS A 97 GLY A 113 1 17 HELIX 8 AA8 ALA A 136 GLU A 141 1 6 HELIX 9 AA9 GLU A 154 ALA A 172 1 19 HELIX 10 AB1 ARG A 191 GLY A 204 1 14 HELIX 11 AB2 ASP A 214 ARG A 223 1 10 HELIX 12 AB3 THR A 226 ASP A 231 1 6 HELIX 13 AB4 ALA A 234 ASP A 249 1 16 HELIX 14 AB5 THR A 260 PHE A 271 1 12 HELIX 15 AB6 GLY B 14 MET B 29 1 16 HELIX 16 AB7 THR B 45 HIS B 50 1 6 HELIX 17 AB8 THR B 56 ALA B 64 1 9 HELIX 18 AB9 THR B 66 LEU B 70 5 5 HELIX 19 AC1 GLU B 71 LEU B 76 1 6 HELIX 20 AC2 TYR B 80 GLY B 82 5 3 HELIX 21 AC3 CYS B 97 GLU B 112 1 16 HELIX 22 AC4 ALA B 136 GLU B 141 1 6 HELIX 23 AC5 GLU B 154 ASN B 173 1 20 HELIX 24 AC6 ARG B 191 GLY B 204 1 14 HELIX 25 AC7 ASP B 214 ARG B 223 1 10 HELIX 26 AC8 THR B 226 ASP B 231 1 6 HELIX 27 AC9 ALA B 234 ASP B 249 1 16 HELIX 28 AD1 THR B 260 PHE B 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 GLY A 37 1 N ILE A 35 O LYS A 84 SHEET 4 AA1 8 PHE A 121 ASP A 125 1 O PHE A 123 N MET A 34 SHEET 5 AA1 8 ARG A 3 TYR A 8 1 N CYS A 5 O VAL A 122 SHEET 6 AA1 8 GLU A 146 CYS A 151 1 O VAL A 150 N TYR A 8 SHEET 7 AA1 8 ARG A 178 ASN A 185 1 O ILE A 183 N ILE A 149 SHEET 8 AA1 8 MET A 207 VAL A 211 1 O VAL A 211 N CYS A 184 SHEET 1 AA2 8 LYS B 77 ALA B 78 0 SHEET 2 AA2 8 LYS B 84 GLU B 87 -1 O CYS B 85 N LYS B 77 SHEET 3 AA2 8 VAL B 33 GLY B 37 1 N GLY B 37 O VAL B 86 SHEET 4 AA2 8 PHE B 121 ASP B 125 1 O PHE B 123 N VAL B 36 SHEET 5 AA2 8 ARG B 3 TYR B 8 1 N CYS B 5 O VAL B 122 SHEET 6 AA2 8 GLU B 146 CYS B 151 1 O VAL B 150 N TYR B 8 SHEET 7 AA2 8 ARG B 178 ASN B 185 1 O ASN B 185 N CYS B 151 SHEET 8 AA2 8 MET B 207 VAL B 211 1 O VAL B 211 N CYS B 184 LINK SG CYS A 97 FE1 SF4 B 601 1555 1555 2.26 LINK SG CYS A 132 FE2 SF4 B 601 1555 1555 2.26 LINK SG CYS B 97 FE3 SF4 B 601 1555 1555 2.27 LINK SG CYS B 132 FE4 SF4 B 601 1555 1555 2.26 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000