ID A0A1H9I9M6_9SPHN Unreviewed; 668 AA.
AC A0A1H9I9M6;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 33.
DE RecName: Full=NADH-quinone oxidoreductase {ECO:0000256|RuleBase:RU003525};
DE EC=7.1.1.- {ECO:0000256|RuleBase:RU003525};
GN ORFNames=SAMN05518866_102225 {ECO:0000313|EMBL:SEQ71267.1};
OS Sphingobium sp. YR768.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingobium.
OX NCBI_TaxID=1884365 {ECO:0000313|EMBL:SEQ71267.1, ECO:0000313|Proteomes:UP000199142};
RN [1] {ECO:0000313|Proteomes:UP000199142}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=YR768 {ECO:0000313|Proteomes:UP000199142};
RA Varghese N., Submissions S.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur
CC (Fe-S) centers, to quinones in the respiratory chain. Couples the redox
CC reaction to proton translocation (for every two electrons transferred,
CC four hydrogen ions are translocated across the cytoplasmic membrane),
CC and thus conserves the redox energy in a proton gradient.
CC {ECO:0000256|RuleBase:RU003525}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a quinone + 5 H(+)(in) + NADH = a quinol + 4 H(+)(out) +
CC NAD(+); Xref=Rhea:RHEA:57888, ChEBI:CHEBI:15378, ChEBI:CHEBI:24646,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:132124;
CC Evidence={ECO:0000256|ARBA:ARBA00000100,
CC ECO:0000256|RuleBase:RU003525};
CC -!- COFACTOR:
CC Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC Evidence={ECO:0000256|RuleBase:RU003525};
CC Note=Binds 1 [2Fe-2S] cluster per subunit.
CC {ECO:0000256|RuleBase:RU003525};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|ARBA:ARBA00001966,
CC ECO:0000256|RuleBase:RU003525};
CC -!- SIMILARITY: Belongs to the complex I 75 kDa subunit family.
CC {ECO:0000256|ARBA:ARBA00005404, ECO:0000256|RuleBase:RU003525}.
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DR EMBL; FOGE01000002; SEQ71267.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1H9I9M6; -.
DR STRING; 1884365.SAMN05518866_102225; -.
DR OrthoDB; 9816402at2; -.
DR Proteomes; UP000199142; Unassembled WGS sequence.
DR GO; GO:0016020; C:membrane; IEA:InterPro.
DR GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0048038; F:quinone binding; IEA:UniProtKB-UniRule.
DR GO; GO:0042773; P:ATP synthesis coupled electron transport; IEA:InterPro.
DR CDD; cd00207; fer2; 1.
DR Gene3D; 3.10.20.740; -; 1.
DR Gene3D; 3.30.70.20; -; 1.
DR Gene3D; 3.40.50.740; -; 2.
DR Gene3D; 3.40.228.10; Dimethylsulfoxide Reductase, domain 2; 1.
DR InterPro; IPR036010; 2Fe-2S_ferredoxin-like_sf.
DR InterPro; IPR001041; 2Fe-2S_ferredoxin-type.
DR InterPro; IPR006656; Mopterin_OxRdtase.
DR InterPro; IPR006963; Mopterin_OxRdtase_4Fe-4S_dom.
DR InterPro; IPR000283; NADH_UbQ_OxRdtase_75kDa_su_CS.
DR InterPro; IPR010228; NADH_UbQ_OxRdtase_Gsu.
DR InterPro; IPR019574; NADH_UbQ_OxRdtase_Gsu_4Fe4S-bd.
DR InterPro; IPR015405; NDUFS1-like_C.
DR NCBIfam; TIGR01973; NuoG; 1.
DR PANTHER; PTHR43105:SF13; NADH-UBIQUINONE OXIDOREDUCTASE 75 KDA SUBUNIT, MITOCHONDRIAL; 1.
DR PANTHER; PTHR43105; RESPIRATORY NITRATE REDUCTASE; 1.
DR Pfam; PF13510; Fer2_4; 1.
DR Pfam; PF00384; Molybdopterin; 1.
DR Pfam; PF10588; NADH-G_4Fe-4S_3; 1.
DR Pfam; PF09326; NADH_dhqG_C; 1.
DR SMART; SM00929; NADH-G_4Fe-4S_3; 1.
DR SUPFAM; SSF54292; 2Fe-2S ferredoxin-like; 1.
DR SUPFAM; SSF54862; 4Fe-4S ferredoxins; 1.
DR SUPFAM; SSF53706; Formate dehydrogenase/DMSO reductase, domains 1-3; 1.
DR PROSITE; PS51085; 2FE2S_FER_2; 1.
DR PROSITE; PS51839; 4FE4S_HC3; 1.
DR PROSITE; PS51669; 4FE4S_MOW_BIS_MGD; 1.
DR PROSITE; PS00641; COMPLEX1_75K_1; 1.
DR PROSITE; PS00642; COMPLEX1_75K_2; 1.
DR PROSITE; PS00643; COMPLEX1_75K_3; 1.
DR PROSITE; PS51257; PROKAR_LIPOPROTEIN; 1.
PE 3: Inferred from homology;
KW 2Fe-2S {ECO:0000256|RuleBase:RU003525};
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|RuleBase:RU003525};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|RuleBase:RU003525};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|RuleBase:RU003525};
KW Metal-binding {ECO:0000256|RuleBase:RU003525};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|RuleBase:RU003525};
KW Quinone {ECO:0000256|RuleBase:RU003525};
KW Reference proteome {ECO:0000313|Proteomes:UP000199142};
KW Translocase {ECO:0000256|ARBA:ARBA00022967, ECO:0000256|RuleBase:RU003525}.
FT DOMAIN 2..79
FT /note="2Fe-2S ferredoxin-type"
FT /evidence="ECO:0000259|PROSITE:PS51085"
FT DOMAIN 79..118
FT /note="4Fe-4S His(Cys)3-ligated-type"
FT /evidence="ECO:0000259|PROSITE:PS51839"
FT DOMAIN 216..272
FT /note="4Fe-4S Mo/W bis-MGD-type"
FT /evidence="ECO:0000259|PROSITE:PS51669"
SQ SEQUENCE 668 AA; 71546 MW; B3B47FDEAC120D32 CRC64;
MPKVKVDGVE LEVPAGATVL QACEQAGKEI PRFCYHERLS IAGNCRMCLV EVKPGPPKPQ
ASCALPATEG QEIRTDSEMV KKAREGVMEF LLINHPLDCP ICDQGGECDL QDQSVAYGRG
SSRYDENKRA VTEKNMGPIV KTVMTRCIQC TRCVRFAEEV AGVPEIGAIY RGENMQITTY
LEHAAKSELS GNVVDLCPVG ALTAKPYAFE ARPWELKKTH AIDVMDALGT NIRLDSRGRQ
VLRAVPRIND DVNEEWASDK TRHNVDGLVR KRLDKPFVRK DGKLVPATWA EAFAAVAAVQ
HGGSVAAIAG DLLDCETMFA GKALVEKLGG TMLEGRQTGL SYDVSSLSSV VFNTPLADLE
TADVILLVGT NLRWEAPLVN TRIRKAIKKG AKVFAVGPEF DLTYKVEWLG NDASLLAKLP
EAVTEAFKGA ARPAMIVGGG VLAKDGAHGD TLALVETLGL VKDGWNGYNV LHFAAARMGG
LMLGYATKGG IKAVAEAAPK LLFSLGADEV DYSAFDGSFK VYVGHHGDKG AHAADVILPG
ASYAEKAGTY VNLEGRVQFG EKAVFAPGDA REDWSILRAL SEALGAKLPF DSFDALRAEM
VKAVPALGVE GIADYGWSVP SLPTGATGEF GSPIKDFYLT NAICRASPTM QQCSAELIHG
VEYAEAAE
//
