ID A0A4D6Q2N8_9ERIC Unreviewed; 120 AA. AC A0A4D6Q2N8; DT 03-JUL-2019, integrated into UniProtKB/TrEMBL. DT 03-JUL-2019, sequence version 1. DT 02-OCT-2024, entry version 15. DE RecName: Full=NADH-quinone oxidoreductase subunit A {ECO:0000256|HAMAP-Rule:MF_01394}; DE EC=7.1.1.- {ECO:0000256|HAMAP-Rule:MF_01394}; DE AltName: Full=NADH dehydrogenase I subunit A {ECO:0000256|HAMAP-Rule:MF_01394}; DE AltName: Full=NDH-1 subunit A {ECO:0000256|HAMAP-Rule:MF_01394}; DE AltName: Full=NUO1 {ECO:0000256|HAMAP-Rule:MF_01394}; GN Name=ndhC {ECO:0000313|EMBL:QCF39501.1}; GN Synonyms=nuoA {ECO:0000256|HAMAP-Rule:MF_01394}; OS Vaccinium oldhamii. OG Plastid {ECO:0000313|EMBL:QCF39501.1}. OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; OC asterids; Ericales; Ericaceae; Vaccinioideae; Vaccinieae; Vaccinium. OX NCBI_TaxID=190543 {ECO:0000313|EMBL:QCF39501.1}; RN [1] {ECO:0000313|EMBL:QCF39501.1} RP NUCLEOTIDE SEQUENCE. RA Kim S.-C., Baek S.-H., Lee J.-W., Hyun H.J.; RT "Complete chloroplast genome of Vaccinium oldhamii and phylogenetic RT analysis."; RL Mitochondrial DNA Part B Resour 4:902-903(2019). CC -!- FUNCTION: Core subunit of the mitochondrial membrane respiratory chain CC NADH dehydrogenase (Complex I) that is believed to belong to the CC minimal assembly required for catalysis. Complex I functions in the CC transfer of electrons from NADH to the respiratory chain. The immediate CC electron acceptor for the enzyme is believed to be ubiquinone. CC {ECO:0000256|ARBA:ARBA00003257}. CC -!- FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur CC (Fe-S) centers, to quinones in the respiratory chain. The immediate CC electron acceptor for the enzyme in this species is believed to be CC ubiquinone. Couples the redox reaction to proton translocation (for CC every two electrons transferred, four hydrogen ions are translocated CC across the cytoplasmic membrane), and thus conserves the redox energy CC in a proton gradient. {ECO:0000256|HAMAP-Rule:MF_01394}. 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|HAMAP-Rule:MF_01394}; 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|ARBA:ARBA00000766}; CC -!- SUBUNIT: NDH-1 is composed of 14 different subunits. Subunits NuoA, H, CC J, K, L, M, N constitute the membrane sector of the complex. CC {ECO:0000256|HAMAP-Rule:MF_01394}. CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_01394}; CC Multi-pass membrane protein {ECO:0000256|HAMAP-Rule:MF_01394}. CC Mitochondrion membrane {ECO:0000256|ARBA:ARBA00004225}; Multi-pass CC membrane protein {ECO:0000256|ARBA:ARBA00004225}. CC -!- SIMILARITY: Belongs to the complex I subunit 3 family. CC {ECO:0000256|ARBA:ARBA00008472, ECO:0000256|HAMAP-Rule:MF_01394}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; MK049537; QCF39501.1; -; Genomic_DNA. DR AlphaFoldDB; A0A4D6Q2N8; -. DR GO; GO:0009507; C:chloroplast; IEA:TreeGrafter. DR GO; GO:0031966; C:mitochondrial membrane; IEA:UniProtKB-SubCell. DR GO; GO:0030964; C:NADH dehydrogenase complex; IEA:TreeGrafter. DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell. DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:UniProtKB-EC. DR GO; GO:0050136; F:NADH:ubiquinone reductase (non-electrogenic) activity; IEA:UniProtKB-UniRule. DR GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW. DR Gene3D; 1.20.58.1610; NADH:ubiquinone/plastoquinone oxidoreductase, chain 3; 1. DR HAMAP; MF_01394; NDH1_NuoA; 1. DR InterPro; IPR023043; NAD(P)H_OxRDtase_bac/plastid. DR InterPro; IPR000440; NADH_UbQ/plastoQ_OxRdtase_su3. DR InterPro; IPR038430; NDAH_ubi_oxred_su3_sf. DR PANTHER; PTHR11058; NADH-UBIQUINONE OXIDOREDUCTASE CHAIN 3; 1. DR PANTHER; PTHR11058:SF9; NADH-UBIQUINONE OXIDOREDUCTASE CHAIN 3; 1. DR Pfam; PF00507; Oxidored_q4; 1. PE 3: Inferred from homology; KW Cell membrane {ECO:0000256|HAMAP-Rule:MF_01394}; KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_01394}; KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_01394}; KW Plastid {ECO:0000313|EMBL:QCF39501.1}; KW Quinone {ECO:0000256|HAMAP-Rule:MF_01394}; KW Translocase {ECO:0000256|ARBA:ARBA00022967, ECO:0000256|HAMAP- KW Rule:MF_01394}; KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP- KW Rule:MF_01394}; KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP- KW Rule:MF_01394}; KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_01394}; KW Ubiquinone {ECO:0000256|HAMAP-Rule:MF_01394}. FT TRANSMEM 12..34 FT /note="Helical" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394" FT TRANSMEM 62..83 FT /note="Helical" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394" FT TRANSMEM 89..112 FT /note="Helical" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394" SQ SEQUENCE 120 AA; 13858 MW; 67E01A5BDF93DAF8 CRC64; MFLLYEYDIF WTFLLISSLI PVLAFLISGV LAPLSKGPEK LSIYESGIEP VGDAWLQFQI RYYMFALVFV VFDVETVFLY PWAMSFDVLG VSVFIEAFIF VLILIVGSVY AWRKGALEWF //