ID A0A1R2CV99_9CILI Unreviewed; 467 AA.
AC A0A1R2CV99;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 24-JAN-2024, entry version 24.
DE RecName: Full=NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial {ECO:0000256|RuleBase:RU364066};
DE EC=7.1.1.2 {ECO:0000256|RuleBase:RU364066};
GN ORFNames=SteCoe_4161 {ECO:0000313|EMBL:OMJ92946.1};
OS Stentor coeruleus.
OC Eukaryota; Sar; Alveolata; Ciliophora; Postciliodesmatophora;
OC Heterotrichea; Heterotrichida; Stentoridae; Stentor.
OX NCBI_TaxID=5963 {ECO:0000313|EMBL:OMJ92946.1, ECO:0000313|Proteomes:UP000187209};
RN [1] {ECO:0000313|EMBL:OMJ92946.1, ECO:0000313|Proteomes:UP000187209}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WM001 {ECO:0000313|EMBL:OMJ92946.1};
RA Slabodnick M., Ruby J.G., Reiff S.B., Swart E.C., Gosai S., Prabakaran S.,
RA Witkowska E., Larue G.E., Fisher S., Freeman R.M., Gunawardena J., Chu W.,
RA Stover N.A., Gregory B.D., Nowacki M., Derisi J., Roy S.W., Marshall W.F.,
RA Sood P.;
RT "The macronuclear genome of Stentor coeruleus: a giant cell with tiny
RT introns.";
RL Submitted (NOV-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Core subunit of the mitochondrial membrane respiratory chain
CC NADH dehydrogenase (Complex I) which catalyzes electron transfer from
CC NADH through the respiratory chain, using ubiquinone as an electron
CC acceptor. Essential for the catalytic activity and assembly of complex
CC I. {ECO:0000256|RuleBase:RU364066}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a ubiquinone + 5 H(+)(in) + NADH = a ubiquinol + 4 H(+)(out) +
CC NAD(+); Xref=Rhea:RHEA:29091, Rhea:RHEA-COMP:9565, Rhea:RHEA-
CC COMP:9566, ChEBI:CHEBI:15378, ChEBI:CHEBI:16389, ChEBI:CHEBI:17976,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=7.1.1.2;
CC Evidence={ECO:0000256|RuleBase:RU364066};
CC -!- COFACTOR:
CC Name=FMN; Xref=ChEBI:CHEBI:58210;
CC Evidence={ECO:0000256|ARBA:ARBA00001917,
CC ECO:0000256|RuleBase:RU364066};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|ARBA:ARBA00001966,
CC ECO:0000256|RuleBase:RU364066};
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC {ECO:0000256|RuleBase:RU364066}; Peripheral membrane protein
CC {ECO:0000256|RuleBase:RU364066}; Matrix side
CC {ECO:0000256|RuleBase:RU364066}.
CC -!- SIMILARITY: Belongs to the complex I 51 kDa subunit family.
CC {ECO:0000256|ARBA:ARBA00007523, ECO:0000256|RuleBase:RU364066}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OMJ92946.1}.
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DR EMBL; MPUH01000051; OMJ92946.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1R2CV99; -.
DR OrthoDB; 5483539at2759; -.
DR Proteomes; UP000187209; Unassembled WGS sequence.
DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0045271; C:respiratory chain complex I; IEA:UniProt.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0010181; F:FMN binding; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0051287; F:NAD binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:UniProtKB-EC.
DR Gene3D; 3.10.20.600; -; 1.
DR Gene3D; 3.40.50.11540; NADH-ubiquinone oxidoreductase 51kDa subunit; 1.
DR Gene3D; 1.20.1440.230; NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain; 1.
DR InterPro; IPR001949; NADH-UbQ_OxRdtase_51kDa_CS.
DR InterPro; IPR011537; NADH-UbQ_OxRdtase_suF.
DR InterPro; IPR011538; Nuo51_FMN-bd.
DR InterPro; IPR037225; Nuo51_FMN-bd_sf.
DR InterPro; IPR019575; Nuop51_4Fe4S-bd.
DR InterPro; IPR037207; Nuop51_4Fe4S-bd_sf.
DR NCBIfam; TIGR01959; nuoF_fam; 1.
DR PANTHER; PTHR11780:SF10; NADH DEHYDROGENASE [UBIQUINONE] FLAVOPROTEIN 1, MITOCHONDRIAL; 1.
DR PANTHER; PTHR11780; NADH-UBIQUINONE OXIDOREDUCTASE FLAVOPROTEIN 1 NDUFV1; 1.
DR Pfam; PF01512; Complex1_51K; 1.
DR Pfam; PF10589; NADH_4Fe-4S; 1.
DR SMART; SM00928; NADH_4Fe-4S; 1.
DR SUPFAM; SSF142019; Nqo1 FMN-binding domain-like; 1.
DR SUPFAM; SSF142984; Nqo1 middle domain-like; 1.
DR SUPFAM; SSF140490; Nqo1C-terminal domain-like; 1.
DR PROSITE; PS00644; COMPLEX1_51K_1; 1.
DR PROSITE; PS00645; COMPLEX1_51K_2; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|RuleBase:RU364066};
KW Electron transport {ECO:0000256|RuleBase:RU364066};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630,
KW ECO:0000256|RuleBase:RU364066};
KW FMN {ECO:0000256|ARBA:ARBA00022643, ECO:0000256|RuleBase:RU364066};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|RuleBase:RU364066};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|RuleBase:RU364066};
KW Membrane {ECO:0000256|RuleBase:RU364066};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU364066};
KW Mitochondrion {ECO:0000256|RuleBase:RU364066};
KW Mitochondrion inner membrane {ECO:0000256|RuleBase:RU364066};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|RuleBase:RU364066};
KW Reference proteome {ECO:0000313|Proteomes:UP000187209};
KW Respiratory chain {ECO:0000256|RuleBase:RU364066};
KW Transit peptide {ECO:0000256|RuleBase:RU364066};
KW Transport {ECO:0000256|RuleBase:RU364066}.
FT DOMAIN 346..391
FT /note="NADH-ubiquinone oxidoreductase 51kDa subunit iron-
FT sulphur binding"
FT /evidence="ECO:0000259|SMART:SM00928"
SQ SEQUENCE 467 AA; 51437 MW; 5AFCB829F0F1CE77 CRC64;
MLARLSRRVL SSTNGILQDK DRIFTNVYCD NSPMLKGAQK RGDWHNTKDM LLMGPDWIID
EIKDSGLRGR GGAGFPSGLK YSFMPKKSDG RPSYLVINAD ESEPGTCKDR EILRHEPHKL
IEGVLCVGTA MRAKAAYIYI RGEFWKEANV VQAAIDEAYS AGLIGKNACG TGIDFDVYVH
RGAGAYICGE ESALIESLEG KQGKPRMKPP FPANAGLYGC PTTVTNVETV AVVPTILRRG
PSWFKSFGNE GNAGTKLFCI SGHVNNPCTV EEVMSIPLKE LIERHCGGVR GGWDNLLGII
PGGSSVPILP KHICDTVLMD FDSLRKANSG LGTAAVIVMD KSTDIIDAIL RLSKFYKHES
CGQCTPCREG TTWLVDILTR MKYGQADYAE IDMLEELTKQ IEGHTICALG DAAAWPVQGL
IRHFRNVIED RIDDYWANNP GVRKTTVESV RNPELLESYQ RVLAQKH
//
