UniProtKB - O27605 (NIFD_METTH)
Protein
Nitrogenase molybdenum-iron protein alpha chain
Gene
nifD
Organism
Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H) (Methanobacterium thermoautotrophicum)
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 | 48 | Iron-sulfur (8Fe-7S); shared with beta chainBy similarity | 1 | |
Metal bindingi | 74 | Iron-sulfur (8Fe-7S); shared with beta chainBy similarity | 1 | |
Metal bindingi | 147 | Iron-sulfur (8Fe-7S); shared with beta chainBy similarity | 1 | |
Metal bindingi | 265 | Molybdenum-iron-sulfur-carbon (7Fe-Mo-9S-C-homocitryl)By similarity | 1 | |
Metal bindingi | 431 | 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 |
Enzyme and pathway databases
BioCyci | MTHE187420:G1G16-1516-MONOMER |
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:MTH_1563 |
Organismi | Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H) (Methanobacterium thermoautotrophicum) |
Taxonomic identifieri | 187420 [NCBI] |
Taxonomic lineagei | Archaea › Euryarchaeota › Methanomada group › Methanobacteria › Methanobacteriales › Methanobacteriaceae › Methanothermobacter › |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000153073 | 1 – 469 | Nitrogenase molybdenum-iron protein alpha chainAdd BLAST | 469 |
Interactioni
Subunit structurei
Tetramer of two alpha and two beta chains. Forms complex with the iron protein (nitrogenase component 2).
Family & Domainsi
Sequence similaritiesi
Belongs to the NifD/NifK/NifE/NifN family.Curated
Phylogenomic databases
HOGENOMi | CLU_025876_1_0_2 |
OMAi | YCFSTDM |
Family and domain databases
InterProi | View protein in InterPro IPR000510, Nase/OxRdtase_comp1 IPR005974, Nase_asu IPR010143, Nase_comp1_asu IPR000318, Nase_comp1_CS |
PANTHERi | PTHR43457, PTHR43457, 1 hit |
Pfami | View protein in Pfam PF00148, Oxidored_nitro, 1 hit |
TIGRFAMsi | TIGR01284, alt_nitrog_alph, 1 hit TIGR01862, N2-ase-Ialpha, 1 hit |
PROSITEi | View protein in PROSITE PS00090, NITROGENASE_1_2, 1 hit |
i Sequence
Sequence statusi: Complete.
O27605-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MPFKLFDVDA EIPERKKHVY IKKKEDPEED LPLCNTKTIP GCMTERGCAF
60 70 80 90 100
AGAKGVITGA IKDALHVIHS PVGCTAYGYG TKRYPTSQEM PDGSLFPIEN
110 120 130 140 150
FNLKYITGTN LTETDVVFGG MDKLKRCIIE AAKEFPEANA VYTYATCTTG
160 170 180 190 200
LIGDDIEAVS REVSEEIGKD VVAINAPGFA GPTQSKGHQV ANYTLFENLV
210 220 230 240 250
GTAEPPVVTD YDVNLIGEYN IDGDLWVLKR YFEEMGINVL STFTGDCCHD
260 270 280 290 300
EIKWMHRAKL SLVRCQRSAT YIARLLEERY NVPYMKVDFF GIEYCKRNLM
310 320 330 340 350
ATGEYFGIPE RAEEVIKDRM EKIGPEIEYL RNKLAGKKVW VFSGGPKNWH
360 370 380 390 400
LPRPLEDELG MEVVAVSTMF EHEDGYEKIK KRVGENTVIV DDPNSLELEE
410 420 430 440 450
IIEKYRPDII LSGIKEKYLA HKLGVPCVLI HSYENGPYIG FEGFLNLARD
460
MYASIYSPVW DLLEFEAGD
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE000666 Genomic DNA Translation: AAB86037.1 |
PIRi | F69075 |
RefSeqi | WP_010877172.1, NC_000916.1 |
Genome annotation databases
EnsemblBacteriai | AAB86037; AAB86037; MTH_1563 |
GeneIDi | 1471832 |
KEGGi | mth:MTH_1563 |
PATRICi | fig|187420.15.peg.1526 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE000666 Genomic DNA Translation: AAB86037.1 |
PIRi | F69075 |
RefSeqi | WP_010877172.1, NC_000916.1 |
3D structure databases
SMRi | O27605 |
ModBasei | Search... |
Genome annotation databases
EnsemblBacteriai | AAB86037; AAB86037; MTH_1563 |
GeneIDi | 1471832 |
KEGGi | mth:MTH_1563 |
PATRICi | fig|187420.15.peg.1526 |
Phylogenomic databases
HOGENOMi | CLU_025876_1_0_2 |
OMAi | YCFSTDM |
Enzyme and pathway databases
BioCyci | MTHE187420:G1G16-1516-MONOMER |
Family and domain databases
InterProi | View protein in InterPro IPR000510, Nase/OxRdtase_comp1 IPR005974, Nase_asu IPR010143, Nase_comp1_asu IPR000318, Nase_comp1_CS |
PANTHERi | PTHR43457, PTHR43457, 1 hit |
Pfami | View protein in Pfam PF00148, Oxidored_nitro, 1 hit |
TIGRFAMsi | TIGR01284, alt_nitrog_alph, 1 hit TIGR01862, N2-ase-Ialpha, 1 hit |
PROSITEi | View protein in PROSITE PS00090, NITROGENASE_1_2, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | NIFD_METTH | |
Accessioni | O27605Primary (citable) accession number: O27605 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | July 15, 1998 |
Last sequence update: | January 1, 1998 | |
Last modified: | December 2, 2020 | |
This is version 114 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