UniProtKB - O07642 (NIFD_CROS5)
Protein
Nitrogenase molybdenum-iron protein alpha chain
Gene
nifD
Organism
Crocosphaera subtropica (strain ATCC 51142 / BH68) (Cyanothece sp. (strain ATCC 51142))
Status
Functioni
This molybdenum-iron protein is part of the nitrogenase complex that catalyzes the key enzymatic reactions in nitrogen fixation.
Catalytic activityi
- 16 ATP + 16 H2O + N2 + 8 reduced [2Fe-2S]-[ferredoxin] = 16 ADP + 6 H+ + H2 + 2 NH4+ + 8 oxidized [2Fe-2S]-[ferredoxin] + 16 phosphateEC:1.18.6.1
Cofactori
Protein has several cofactor binding sites:- [8Fe-7S] clusterBy similarityNote: Binds 1 [8Fe-7S] cluster per heterodimer.By similarity
- [7Fe-Mo-9S-C-homocitryl] clusterBy similarityNote: Binds 1 [7Fe-Mo-9S-C-homocitryl] cluster per subunit.By similarity
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 58 | Iron-sulfur (8Fe-7S); shared with beta chainBy similarity | 1 | |
Metal bindingi | 84 | Iron-sulfur (8Fe-7S); shared with beta chainBy similarity | 1 | |
Metal bindingi | 150 | Iron-sulfur (8Fe-7S); shared with beta chainBy similarity | 1 | |
Metal bindingi | 274 | Molybdenum-iron-sulfur-carbon (7Fe-Mo-9S-C-homocitryl)By similarity | 1 | |
Metal bindingi | 441 | Molybdenum-iron-sulfur-carbon (7Fe-Mo-9S-C-homocitryl); via pros nitrogenBy similarity | 1 |
GO - Molecular functioni
- ATP binding Source: UniProtKB-KW
- carbonyl sulfide nitrogenase activity Source: UniProtKB-EC
- iron-sulfur cluster binding Source: UniProtKB-KW
- metal ion binding Source: UniProtKB-KW
- nitrogenase activity Source: UniProtKB-EC
GO - Biological processi
- nitrogen fixation Source: UniProtKB-KW
Keywordsi
Molecular function | Oxidoreductase |
Biological process | Nitrogen fixation |
Ligand | ATP-binding, Iron, Iron-sulfur, Metal-binding, Molybdenum, Nucleotide-binding |
Names & Taxonomyi
Protein namesi | Recommended name: Nitrogenase molybdenum-iron protein alpha chain (EC:1.18.6.1)Alternative name(s): Dinitrogenase Nitrogenase component I |
Gene namesi | Name:nifD Ordered Locus Names:cce_0560 |
Organismi | Crocosphaera subtropica (strain ATCC 51142 / BH68) (Cyanothece sp. (strain ATCC 51142)) |
Taxonomic identifieri | 43989 [NCBI] |
Taxonomic lineagei | Bacteria › Cyanobacteria › Oscillatoriophycideae › Chroococcales › Aphanothecaceae › Crocosphaera › Crocosphaera subtropica |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000153065 | 1 – 480 | Nitrogenase molybdenum-iron protein alpha chainAdd BLAST | 480 |
Interactioni
Subunit structurei
Tetramer of two alpha and two beta chains. Forms complex with the iron protein (nitrogenase component 2).
Protein-protein interaction databases
STRINGi | 43989.cce_0560 |
Family & Domainsi
Sequence similaritiesi
Belongs to the NifD/NifK/NifE/NifN family.Curated
Phylogenomic databases
eggNOGi | COG2710, Bacteria |
HOGENOMi | CLU_025876_1_1_3 |
OMAi | YCFSTDM |
OrthoDBi | 363662at2 |
Family and domain databases
CDDi | cd01976, Nitrogenase_MoFe_alpha, 1 hit |
InterProi | View protein in InterPro IPR000510, Nase/OxRdtase_comp1 IPR010143, Nase_comp1_asu IPR000318, Nase_comp1_CS IPR005972, Nase_Mo-Fe_asu |
PANTHERi | PTHR43457, PTHR43457, 1 hit |
Pfami | View protein in Pfam PF00148, Oxidored_nitro, 1 hit |
TIGRFAMsi | TIGR01862, N2-ase-Ialpha, 1 hit TIGR01282, nifD, 1 hit |
PROSITEi | View protein in PROSITE PS00699, NITROGENASE_1_1, 1 hit PS00090, NITROGENASE_1_2, 1 hit |
i Sequence
Sequence statusi: Complete.
O07642-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MATVEDNKKL IADVLSTYPE KAAKKRAKHL GVYEEGEADC GVKSNKQSLP
60 70 80 90 100
GVMTARGCAY AGSKGVVWGP IKDMVHISHG PVGCGYYSWS GRRNYYIGTT
110 120 130 140 150
GVDSFGTMQF TSDFQERDIV FGGDKKLAKI IDEIEELFPL NGGVSVQSEC
160 170 180 190 200
PVGLIGDDIE SVARTKSKET GKSVVPVRCE GFRGVSQSLG HHIANDMIRD
210 220 230 240 250
WVFPTADKEN AEKGFEGTPY DVAIIGDYNI GGDAWSSRIL LEEIGLRVVA
260 270 280 290 300
QWSGDGTLTE MKATPNVKLN LIHCYRSMNY ISRHMEEKYG IPWLEYNFFG
310 320 330 340 350
PSKIAASLRE IASRFDEKIQ AKAEEVIEKY RKQSEEIIAK YRPRLEGKTV
360 370 380 390 400
MMMVGGLRPR HVVPAFKDLG MEIIGTGYEF AHGDDYKRTT GYVEDATLIY
410 420 430 440 450
DDVTGYEFEE FVKELKPDLV AAGIKEKYVF QKMALPFRQM HSWDYSGPYH
460 470 480
GYDGFAIFAR DMDLALNSPT WGLIGTPWNK
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF003337 Genomic DNA Translation: AAB61283.1 AY728386 Genomic DNA Translation: AAW56989.1 CP000806 Genomic DNA Translation: ACB49911.1 |
RefSeqi | WP_009546640.1, NC_010546.1 |
Genome annotation databases
EnsemblBacteriai | ACB49911; ACB49911; cce_0560 |
KEGGi | cyt:cce_0560 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF003337 Genomic DNA Translation: AAB61283.1 AY728386 Genomic DNA Translation: AAW56989.1 CP000806 Genomic DNA Translation: ACB49911.1 |
RefSeqi | WP_009546640.1, NC_010546.1 |
3D structure databases
SMRi | O07642 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 43989.cce_0560 |
Genome annotation databases
EnsemblBacteriai | ACB49911; ACB49911; cce_0560 |
KEGGi | cyt:cce_0560 |
Phylogenomic databases
eggNOGi | COG2710, Bacteria |
HOGENOMi | CLU_025876_1_1_3 |
OMAi | YCFSTDM |
OrthoDBi | 363662at2 |
Family and domain databases
CDDi | cd01976, Nitrogenase_MoFe_alpha, 1 hit |
InterProi | View protein in InterPro IPR000510, Nase/OxRdtase_comp1 IPR010143, Nase_comp1_asu IPR000318, Nase_comp1_CS IPR005972, Nase_Mo-Fe_asu |
PANTHERi | PTHR43457, PTHR43457, 1 hit |
Pfami | View protein in Pfam PF00148, Oxidored_nitro, 1 hit |
TIGRFAMsi | TIGR01862, N2-ase-Ialpha, 1 hit TIGR01282, nifD, 1 hit |
PROSITEi | View protein in PROSITE PS00699, NITROGENASE_1_1, 1 hit PS00090, NITROGENASE_1_2, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | NIFD_CROS5 | |
Accessioni | O07642Primary (citable) accession number: O07642 Secondary accession number(s): A1KYD6 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | July 15, 1999 |
Last sequence update: | July 1, 1997 | |
Last modified: | December 2, 2020 | |
This is version 109 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families