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(-) Description

Title :  X-RAY CRYSTAL STRUCTURE OF THE NITROGENASE MOLYBDENUM-IRON PROTEIN FROM CLOSTRIDIUM PASTEURIANUM AT 3.0 ANGSTROMS RESOLUTION
 
Authors :  J. Kim, D. Woo, D. C. Rees
Date :  24 Mar 93  (Deposition) - 31 Oct 93  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.00
Chains :  Asym./Biol. Unit :  A,B,C,D
Keywords :  Molybdenum-Iron Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Kim, D. Woo, D. C. Rees
X-Ray Crystal Structure Of The Nitrogenase Molybdenum-Iron Protein From Clostridium Pasteurianum At 3. 0-A Resolution.
Biochemistry V. 32 7104 1993
PubMed-ID: 8393705  |  Reference-DOI: 10.1021/BI00079A006
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - NITROGENASE MOLYBDENUM IRON PROTEIN (ALPHA CHAIN)
    Chains: A, C
    Engineered: YES
    Organism Scientific: CLOSTRIDIUM PASTEURIANUM
    Organism Taxid: 1501
 
Molecule 2 - NITROGENASE MOLYBDENUM IRON PROTEIN (BETA CHAIN)
    Chains: B, D
    Engineered: YES
    Organism Scientific: CLOSTRIDIUM PASTEURIANUM
    Organism Taxid: 1501

 Structural Features

(-) Chains, Units

  1234
Asymmetric/Biological Unit : ABCD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 8)

Asymmetric/Biological Unit (4, 8)
No.NameCountTypeFull Name
1CA2Ligand/IonCALCIUM ION
2CFM2Ligand/IonFE-MO-S CLUSTER
3CLP2Ligand/IonFE-S CLUSTER
4HCA2Ligand/Ion3-HYDROXY-3-CARBOXY-ADIPIC ACID

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE B:60 , LYS B:61 , GLU B:62 , TYR B:420 , ASP D:301 , ASP D:305BINDING SITE FOR RESIDUE CA B 492
2AC2SOFTWAREASP B:301 , ASP B:305 , LYS D:61 , GLU D:62BINDING SITE FOR RESIDUE CA D 492
3AC3SOFTWAREALA A:56 , ARG A:87 , GLN A:182 , GLY A:464 , ILE A:465 , GLN A:480 , HIS A:482 , CFM B:496BINDING SITE FOR RESIDUE HCA B 494
4AC4SOFTWAREVAL A:61 , ARG A:87 , HIS A:186 , TYR A:216 , ILE A:218 , CYS A:262 , SER A:265 , VAL A:343 , GLY A:344 , GLY A:345 , ARG A:347 , PHE A:369 , HIS A:482 , HCA B:494BINDING SITE FOR RESIDUE CFM B 496
5AC5SOFTWARECYS A:53 , TYR A:55 , PRO A:76 , GLY A:78 , CYS A:79 , CYS A:145 , GLY A:176 , CYS B:23 , PRO B:25 , SER B:45 , GLY B:47 , CYS B:48 , HIS B:52 , THR B:105 , CYS B:106 , SER B:141BINDING SITE FOR RESIDUE CLP B 498
6AC6SOFTWAREGLN C:182 , GLY C:464 , ILE C:465 , LYS C:466 , HIS C:482 , CFM D:496BINDING SITE FOR RESIDUE HCA D 494
7AC7SOFTWAREVAL C:61 , ARG C:87 , GLN C:182 , HIS C:186 , TYR C:216 , CYS C:262 , SER C:265 , VAL C:343 , GLY C:344 , GLY C:345 , ARG C:347 , PHE C:369 , HIS C:482 , HCA D:494BINDING SITE FOR RESIDUE CFM D 496
8AC8SOFTWARECYS C:53 , TYR C:55 , PRO C:76 , GLY C:78 , CYS C:79 , CYS C:145 , GLY C:176 , CYS D:23 , PRO D:25 , SER D:45 , GLY D:47 , CYS D:48 , TYR D:51 , CYS D:106 , SER D:141BINDING SITE FOR RESIDUE CLP D 498

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1MIO)

(-) Cis Peptide Bonds  (6, 6)

Asymmetric/Biological Unit
No.Residues
1Gly A:488 -Pro A:489
2Phe B:201 -Pro B:202
3Phe B:411 -Pro B:412
4Gly C:488 -Pro C:489
5Phe D:201 -Pro D:202
6Phe D:411 -Pro D:412

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1MIO)

(-) PROSITE Motifs  (2, 8)

Asymmetric/Biological Unit (2, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1NITROGENASE_1_1PS00699 Nitrogenases component 1 alpha and beta subunits signature 1.NIFK_CLOPA41-48
 		  2B:41-48
D:41-48
NIFD_CLOPA72-79
 		  2A:72-79
C:72-79
2NITROGENASE_1_2PS00090 Nitrogenases component 1 alpha and beta subunits signature 2.NIFK_CLOPA104-118
 		  2B:104-118
D:104-118
NIFD_CLOPA143-157
 		  2A:143-157
C:143-157

(-) Exons   (0, 0)

(no "Exon" information available for 1MIO)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:525
 aligned with NIFD_CLOPA | P00467 from UniProtKB/Swiss-Prot  Length:534

    Alignment length:525
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521     
           NIFD_CLOPA     2 SENLKDEILEKYIPKTKKTRSGHIVIKTEETPNPEIVANTRTVPGIITARGCAYAGCKGVVMGPIKDMVHITHGPIGCSFYTWGGRRFKSKPENGTGLNFNEYVFSTDMQESDIVFGGVNKLKDAIHEAYEMFHPAAIGVYATCPVGLIGDDILAVAATASKEIGIPVHAFSCEGYKGVSQSAGHHIANNTVMTDIIGKGNKEQKKYSINVLGEYNIGGDAWEMDRVLEKIGYHVNATLTGDATYEKVQNADKADLNLVQCHRSINYIAEMMETKYGIPWIKCNFIGVDGIVETLRDMAKCFDDPELTKRTEEVIAEEIAAIQDDLDYFKEKLQGKTACLYVGGSRSHTYMNMLKSFGVDSLVAGFEFAHRDDYEGREVIPTIKIDADSKNIPEITVTPDEQKYRVVIPEDKVEELKKAGVPLSSYGGMMKEMHDGTILIDDMNHHDMEVVLEKLKPDMFFAGIKEKFVIQKGGVLSKQLHSYDYNGPYAGFRGVVNFGHELVNGIYTPAWKMITPPWKKASSES 526
               SCOP domains d1mioa_ A: Nitrogenase iron-molybdenum protein, alpha chain                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains 1mioA01 A:2-53,A:333-519                            1mioA02 A:54-196 Nitrogenase molybdenum iron protein domain                                                                                    1mioA03 A:197-308 Nitrogenase molybdenum iron protein domain                                                    ------------------------1mioA01 A:2-53,A:333-519 Nitrogenase molybdenum iron protein domain                                                                                                                        ------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhh.hhhhhhhhh..eeee........................hhhhhhh.........eeeeeeeehhhhhh.......................eeeeehhhhhhhhhhhhhhhhhhhhhhhh...eeee..hhhhhhhh.hhhhhhhhhhhhhh..eee..........hhhhhhhhhhhhhhhh...........eeeeeee....hhhhhhhhhhhhhh.eeeeeee...hhhhhhh.....eeee.hhhhhhhhhhhhhhhhh..eee....hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhhh.............................hhhhhhhhhhhh......hhhhh....eeeee..hhhhhhhhhhhhh..eeeehhhhhhhhhhh..eeee............hhhhhhhhhhhhhhhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------NITROGEN---------------------------------------------------------------NITROGENASE_1_2--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mio A   2 SENLKDEILEKYIPKTKKTRSGHIVIKTEETPNPEIVANTRTVPGIITARGCAYAGCKGVVMGPIKDMVHITHGPIGCSFYTWGGRRFKSKPENGTGLNFNEYVFSTDMQESDIVFGGVNKLKDAIHEAYEMFHPAAIGVYATCPVGLIGDDILAVAATASKEIGIPVHAFSCEGYKGVSQSAGHHIANNTVMTDIIGKGNKEQKKYSINVLGEYNIGGDAWEMDRVLEKIGYHVNATLTGDATYEKVQNADKADLNLVQCHRSINYIAEMMETKYGIPWIKCNFIGVDGIVETLRDMAKCFDDPELTKRTEEVIAEEIAAIQDDLDYFKEKLQGKTACLYVGGSRSHTYMNMLKSFGVDSLVAGFEFAHRDDYEGREVIPTIKIDADSKNIPEITVTPDEQKYRVVIPEDKVEELKKAGVPLSSYGGMMKEMHDGTILIDDMNHHDMEVVLEKLKPDMFFAGIKEKFVIQKGGVLSKQLHSYDYNGPYAGFRGVVNFGHELVNGIYTPAWKMITPPWKKASSES 526
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521     


Chain B from PDB  Type:PROTEIN  Length:457
 aligned with NIFK_CLOPA | P11347 from UniProtKB/Swiss-Prot  Length:458

    Alignment length:457
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       
           NIFK_CLOPA     2 LDATPKEIVERKALRINPAKTCQPVGAMYAALGIHNCLPHSHGSQGCCSYHRTVLSRHFKEPAMASTSSFTEGASVFGGGSNIKTAVKNIFSLYNPDIIAVHTTCLSETLGDDLPTYISQMEDAGSIPEGKLVIHTNTPSYVGSHVTGFANMVQGIVNYLSENTGAKNGKINVIPGFVGPADMREIKRLFEAMDIPYIMFPDTSGVLDGPTTGEYKMYPEGGTKIEDLKDTGNSDLTLSLGSYASDLGAKTLEKKCKVPFKTLRTPIGVSATDEFIMALSEATGKEVPASIEEERGQLIDLMIDAQQYLQGKKVALLGDPDEIIALSKFIIELGAIPKYVVTGTPGMKFQKEIDAMLAEAGIEGSKVKVEGDFFDVHQWIKNEGVDLLISNTYGKFIAREENIPFVRFGFPIMDRYGHYYNPKVGYKGAIRLVEEITNVILDKIERECTEEDFEVVR 458
               SCOP domains d1miob_ B: Nitrogenase iron-molybdenum protein, beta chain                                                                                                                                                                                                                                                                                                                                                                                                                SCOP domains
               CATH domains --------------------1mioB01 B:22-162 Nitrogenase molybdenum iron protein domain                                                                                  1mioB02 B:163-266 Nitrogenase molybdenum iron protein domain                                            1mioB03 B:267-312,B:426-458                   1mioB04 B:313-410 Nitrogenase molybdenum iron protein domain                                      ---------------1mioB03 B:267-312,B:426-458       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............eee......hhhhhhhhhh....eeeeee.hhhhhhhhhhhhhhhhh.....ee.....hhhhhhhhhhhhhhhhhhhhhh...eeeeeehhhhhhhh.hhhhhhhhhhhh.......eeeee.......hhhhhhhhhhhhhhhhhh.........eeee....hhhhhhhhhhhhhhhh..eee........................hhhhhhh.....eeeeehhhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh..eeeeeehhhhhhhhhhhhhh...eeeeeee...hhhhhhhhhhhhhh......eeee..hhhhhhhhhhhh...eeeehhhhhhhhhhhh..eee.........hhhhh....hhhhhhhhhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------NITROGEN-------------------------------------------------------NITROGENASE_1_2---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mio B   2 LDATPKEIVERKALRINPAKTCQPVGAMYAALGIHNCLPHSHGSQGCCSYHRTVLSRHFKEPAMASTSSFTEGASVFGGGSNIKTAVKNIFSLYNPDIIAVHTTCLSETLGDDLPTYISQMEDAGSIPEGKLVIHTNTPSYVGSHVTGFANMVQGIVNYLSENTGAKNGKINVIPGFVGPADMREIKRLFEAMDIPYIMFPDTSGVLDGPTTGEYKMYPEGGTKIEDLKDTGNSDLTLSLGSYASDLGAKTLEKKCKVPFKTLRTPIGVSATDEFIMALSEATGKEVPASIEEERGQLIDLMIDAQQYLQGKKVALLGDPDEIIALSKFIIELGAIPKYVVTGTPGMKFQKEIDAMLAEAGIEGSKVKVEGDFFDVHQWIKNEGVDLLISNTYGKFIAREENIPFVRFGFPIMDRYGHYYNPKVGYKGAIRLVEEITNVILDKIERECTEEDFEVVR 458
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       


Chain C from PDB  Type:PROTEIN  Length:525
 aligned with NIFD_CLOPA | P00467 from UniProtKB/Swiss-Prot  Length:534

    Alignment length:525
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521     
           NIFD_CLOPA     2 SENLKDEILEKYIPKTKKTRSGHIVIKTEETPNPEIVANTRTVPGIITARGCAYAGCKGVVMGPIKDMVHITHGPIGCSFYTWGGRRFKSKPENGTGLNFNEYVFSTDMQESDIVFGGVNKLKDAIHEAYEMFHPAAIGVYATCPVGLIGDDILAVAATASKEIGIPVHAFSCEGYKGVSQSAGHHIANNTVMTDIIGKGNKEQKKYSINVLGEYNIGGDAWEMDRVLEKIGYHVNATLTGDATYEKVQNADKADLNLVQCHRSINYIAEMMETKYGIPWIKCNFIGVDGIVETLRDMAKCFDDPELTKRTEEVIAEEIAAIQDDLDYFKEKLQGKTACLYVGGSRSHTYMNMLKSFGVDSLVAGFEFAHRDDYEGREVIPTIKIDADSKNIPEITVTPDEQKYRVVIPEDKVEELKKAGVPLSSYGGMMKEMHDGTILIDDMNHHDMEVVLEKLKPDMFFAGIKEKFVIQKGGVLSKQLHSYDYNGPYAGFRGVVNFGHELVNGIYTPAWKMITPPWKKASSES 526
               SCOP domains d1mioc_ C: Nitrogenase iron-molybdenum protein, alpha chain                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains 1mioC01 C:2-53,C:333-519                            1mioC02 C:54-196 Nitrogenase molybdenum iron protein domain                                                                                    1mioC03 C:197-308 Nitrogenase molybdenum iron protein domain                                                    ------------------------1mioC01 C:2-53,C:333-519 Nitrogenase molybdenum iron protein domain                                                                                                                        ------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhh..hhhhhhhhhh.eeee........................hhhhhhh.........eeeeee..hhhhhh..........hhhhh........ee...hhhhhhh..hhhhhhhhhhhhhhh...eeeeeehhhhhhh..hhhhhhhhhhhhhh..eeee.........hhhhhhhhhhhhhhhh...........eeeee......hhhhhhhhhhhh...eeeeee....hhhhhhh.....eeee.hhhhhhhhhhhhhhhhh..eee....hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhh..eeeeeee...hhhhhhhhhhh..............................hhhhhhhhhhh...............eeee...hhhhhhhhhhhhh..eee.hhhhhhhhhhh..ee............hhhhhhhhhhhhhhhhhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------NITROGEN---------------------------------------------------------------NITROGENASE_1_2--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mio C   2 SENLKDEILEKYIPKTKKTRSGHIVIKTEETPNPEIVANTRTVPGIITARGCAYAGCKGVVMGPIKDMVHITHGPIGCSFYTWGGRRFKSKPENGTGLNFNEYVFSTDMQESDIVFGGVNKLKDAIHEAYEMFHPAAIGVYATCPVGLIGDDILAVAATASKEIGIPVHAFSCEGYKGVSQSAGHHIANNTVMTDIIGKGNKEQKKYSINVLGEYNIGGDAWEMDRVLEKIGYHVNATLTGDATYEKVQNADKADLNLVQCHRSINYIAEMMETKYGIPWIKCNFIGVDGIVETLRDMAKCFDDPELTKRTEEVIAEEIAAIQDDLDYFKEKLQGKTACLYVGGSRSHTYMNMLKSFGVDSLVAGFEFAHRDDYEGREVIPTIKIDADSKNIPEITVTPDEQKYRVVIPEDKVEELKKAGVPLSSYGGMMKEMHDGTILIDDMNHHDMEVVLEKLKPDMFFAGIKEKFVIQKGGVLSKQLHSYDYNGPYAGFRGVVNFGHELVNGIYTPAWKMITPPWKKASSES 526
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521     


Chain D from PDB  Type:PROTEIN  Length:457
 aligned with NIFK_CLOPA | P11347 from UniProtKB/Swiss-Prot  Length:458

    Alignment length:457
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       
           NIFK_CLOPA     2 LDATPKEIVERKALRINPAKTCQPVGAMYAALGIHNCLPHSHGSQGCCSYHRTVLSRHFKEPAMASTSSFTEGASVFGGGSNIKTAVKNIFSLYNPDIIAVHTTCLSETLGDDLPTYISQMEDAGSIPEGKLVIHTNTPSYVGSHVTGFANMVQGIVNYLSENTGAKNGKINVIPGFVGPADMREIKRLFEAMDIPYIMFPDTSGVLDGPTTGEYKMYPEGGTKIEDLKDTGNSDLTLSLGSYASDLGAKTLEKKCKVPFKTLRTPIGVSATDEFIMALSEATGKEVPASIEEERGQLIDLMIDAQQYLQGKKVALLGDPDEIIALSKFIIELGAIPKYVVTGTPGMKFQKEIDAMLAEAGIEGSKVKVEGDFFDVHQWIKNEGVDLLISNTYGKFIAREENIPFVRFGFPIMDRYGHYYNPKVGYKGAIRLVEEITNVILDKIERECTEEDFEVVR 458
               SCOP domains d1miod_ D: Nitrogenase iron-molybdenum protein, beta chain                                                                                                                                                                                                                                                                                                                                                                                                                SCOP domains
               CATH domains --------------------1mioD01 D:22-162 Nitrogenase molybdenum iron protein domain                                                                                  1mioD02 D:163-266 Nitrogenase molybdenum iron protein domain                                            1mioD03 D:267-312,D:426-458                   1mioD04 D:313-410 Nitrogenase molybdenum iron protein domain                                      ---------------1mioD03 D:267-312,D:426-458       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............ee......hhhhhhhhhh....eeeeee..hhhhhhhhhhhhhhhh.....ee.....hhhhhhhhhhhhhhhhhhhhhh...eeeeeehhhhhhhh.hhhhhhhhhhhh.......eeee........hhhhhhhhhhhhhhhhhh.........eeee....hhhhhhhhhhhhhhh...eee........................hhhhhhhhhhh.eeeee....hhhhhhhhhhhh...eeee...hhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh..eeeeeehhhhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhhhhhhhh....eeee..hhhhhhhhhhhh...eeeehhhhhhhhhhh...eee.........hhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------NITROGEN-------------------------------------------------------NITROGENASE_1_2---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mio D   2 LDATPKEIVERKALRINPAKTCQPVGAMYAALGIHNCLPHSHGSQGCCSYHRTVLSRHFKEPAMASTSSFTEGASVFGGGSNIKTAVKNIFSLYNPDIIAVHTTCLSETLGDDLPTYISQMEDAGSIPEGKLVIHTNTPSYVGSHVTGFANMVQGIVNYLSENTGAKNGKINVIPGFVGPADMREIKRLFEAMDIPYIMFPDTSGVLDGPTTGEYKMYPEGGTKIEDLKDTGNSDLTLSLGSYASDLGAKTLEKKCKVPFKTLRTPIGVSATDEFIMALSEATGKEVPASIEEERGQLIDLMIDAQQYLQGKKVALLGDPDEIIALSKFIIELGAIPKYVVTGTPGMKFQKEIDAMLAEAGIEGSKVKVEGDFFDVHQWIKNEGVDLLISNTYGKFIAREENIPFVRFGFPIMDRYGHYYNPKVGYKGAIRLVEEITNVILDKIERECTEEDFEVVR 458
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 14)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
(-)
Architecture: 3-Layer(aba) Sandwich (12045)
(-)
Topology: Rossmann fold (7312)
(-)
Homologous Superfamily: Nitrogenase molybdenum iron protein domain (45)
(-)
Clostridium pasteurianum. Organism_taxid: 1501. (1)
1a1mioA02A:54-196
1b1mioC02C:54-196
1c1mioA01A:2-53,A:333-519
1d1mioC01C:2-53,C:333-519
1e1mioB01B:22-162
1f1mioD01D:22-162
1g1mioA03A:197-308
1h1mioC03C:197-308
1i1mioB02B:163-266
1j1mioD02D:163-266
1k1mioB04B:313-410
1l1mioD04D:313-410
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1MIO)

(-) Gene Ontology  (10, 20)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,C   (NIFD_CLOPA | P00467)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0018697    carbonyl sulfide nitrogenase activity    Catalysis of the reaction: carbonyl sulfide + 2 H+ + 2 e- = hydrogen sulfide + carbon monoxide.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016163    nitrogenase activity    Catalysis of the reaction: 8 reduced ferredoxin + 8 H+ + nitrogen + 16 ATP = 8 oxidized ferredoxin + 2 NH3 + 16 ADP + 16 phosphate.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0009399    nitrogen fixation    The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
cellular component
    GO:0016612    molybdenum-iron nitrogenase complex    An enzyme complex containing a molybdenum-iron cluster found in many species. It is composed of two proteins, dinitrogenase and nitrogenase reductase; dinitrogenase, the molybdenum-iron protein, is tetrameric with an alpha2-beta2 structure, and nitrogenase reductase is a homodimer.

Chain B,D   (NIFK_CLOPA | P11347)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0018697    carbonyl sulfide nitrogenase activity    Catalysis of the reaction: carbonyl sulfide + 2 H+ + 2 e- = hydrogen sulfide + carbon monoxide.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016163    nitrogenase activity    Catalysis of the reaction: 8 reduced ferredoxin + 8 H+ + nitrogen + 16 ATP = 8 oxidized ferredoxin + 2 NH3 + 16 ADP + 16 phosphate.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0009399    nitrogen fixation    The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
cellular component
    GO:0016612    molybdenum-iron nitrogenase complex    An enzyme complex containing a molybdenum-iron cluster found in many species. It is composed of two proteins, dinitrogenase and nitrogenase reductase; dinitrogenase, the molybdenum-iron protein, is tetrameric with an alpha2-beta2 structure, and nitrogenase reductase is a homodimer.

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