ID A0A0J6BF47_9SYNE Unreviewed; 254 AA.
AC A0A0J6BF47;
DT 14-OCT-2015, integrated into UniProtKB/TrEMBL.
DT 14-OCT-2015, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=NAD(P)H-quinone oxidoreductase subunit K {ECO:0000256|HAMAP-Rule:MF_01356};
DE EC=7.1.1.- {ECO:0000256|HAMAP-Rule:MF_01356};
DE AltName: Full=NAD(P)H dehydrogenase I subunit K {ECO:0000256|HAMAP-Rule:MF_01356};
DE AltName: Full=NDH-1 subunit K {ECO:0000256|HAMAP-Rule:MF_01356};
DE Short=NDH-K {ECO:0000256|HAMAP-Rule:MF_01356};
GN Name=ndhK {ECO:0000256|HAMAP-Rule:MF_01356};
GN ORFNames=SYNGFB01_06050 {ECO:0000313|EMBL:KMM17153.1};
OS Synechococcus sp. GFB01.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Synechococcaceae;
OC Synechococcus.
OX NCBI_TaxID=1662190 {ECO:0000313|EMBL:KMM17153.1, ECO:0000313|Proteomes:UP000035901};
RN [1] {ECO:0000313|EMBL:KMM17153.1, ECO:0000313|Proteomes:UP000035901}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GFB01 {ECO:0000313|EMBL:KMM17153.1,
RC ECO:0000313|Proteomes:UP000035901};
RA Guimaraes P.I., Leao T.F., de Melo A.G., Ramos R.T., Silva A., Fiore M.F.,
RA Schneider M.P.;
RT "Draft genome of the picocyanobacterium Synechococcus sp. strain GFB01
RT isolated from a freshwater lagoon of the Brazilian Amazon.";
RL Submitted (JUN-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: NDH-1 shuttles electrons from an unknown electron donor, via
CC FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory
CC and/or the photosynthetic chain. The immediate electron acceptor for
CC the enzyme in this species is believed to be plastoquinone. Couples the
CC redox reaction to proton translocation, and thus conserves the redox
CC energy in a proton gradient. Cyanobacterial NDH-1 also plays a role in
CC inorganic carbon-concentration. {ECO:0000256|HAMAP-Rule:MF_01356}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a plastoquinone + (n+1) H(+)(in) + NADH = a plastoquinol + n
CC H(+)(out) + NAD(+); Xref=Rhea:RHEA:42608, Rhea:RHEA-COMP:9561,
CC Rhea:RHEA-COMP:9562, ChEBI:CHEBI:15378, ChEBI:CHEBI:17757,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:62192;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01356};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a plastoquinone + (n+1) H(+)(in) + NADPH = a plastoquinol + n
CC H(+)(out) + NADP(+); Xref=Rhea:RHEA:42612, Rhea:RHEA-COMP:9561,
CC Rhea:RHEA-COMP:9562, ChEBI:CHEBI:15378, ChEBI:CHEBI:17757,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:62192;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01356};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01356};
CC Note=Binds 1 [4Fe-4S] cluster. {ECO:0000256|HAMAP-Rule:MF_01356};
CC -!- SUBUNIT: NDH-1 can be composed of about 15 different subunits;
CC different subcomplexes with different compositions have been identified
CC which probably have different functions. {ECO:0000256|HAMAP-
CC Rule:MF_01356}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000256|HAMAP-
CC Rule:MF_01356}; Peripheral membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_01356}; Cytoplasmic side {ECO:0000256|HAMAP-Rule:MF_01356}.
CC -!- SIMILARITY: Belongs to the complex I 20 kDa subunit family.
CC {ECO:0000256|ARBA:ARBA00009173, ECO:0000256|HAMAP-Rule:MF_01356,
CC ECO:0000256|RuleBase:RU004464}.
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:KMM17153.1}.
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DR EMBL; LFEK01000036; KMM17153.1; -; Genomic_DNA.
DR RefSeq; WP_048017337.1; NZ_LFEK01000036.1.
DR AlphaFoldDB; A0A0J6BF47; -.
DR STRING; 1662190.SYNGFB01_06050; -.
DR PATRIC; fig|1662190.3.peg.1789; -.
DR OrthoDB; 9786737at2; -.
DR Proteomes; UP000035901; Unassembled WGS sequence.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR GO; GO:0019684; P:photosynthesis, light reaction; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.12280; -; 1.
DR HAMAP; MF_01356; NDH1_NuoB; 1.
DR InterPro; IPR006137; NADH_UbQ_OxRdtase-like_20kDa.
DR InterPro; IPR006138; NADH_UQ_OxRdtase_20Kd_su.
DR NCBIfam; TIGR01957; nuoB_fam; 1.
DR PANTHER; PTHR11995; NADH DEHYDROGENASE; 1.
DR PANTHER; PTHR11995:SF14; NADH DEHYDROGENASE [UBIQUINONE] IRON-SULFUR PROTEIN 7, MITOCHONDRIAL; 1.
DR Pfam; PF01058; Oxidored_q6; 1.
DR SUPFAM; SSF56770; HydA/Nqo6-like; 1.
DR PROSITE; PS01150; COMPLEX1_20K; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|HAMAP-Rule:MF_01356, ECO:0000256|RuleBase:RU004464};
KW Iron {ECO:0000256|HAMAP-Rule:MF_01356, ECO:0000256|RuleBase:RU004464};
KW Iron-sulfur {ECO:0000256|HAMAP-Rule:MF_01356,
KW ECO:0000256|RuleBase:RU004464};
KW Membrane {ECO:0000256|HAMAP-Rule:MF_01356, ECO:0000256|SAM:Phobius};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01356,
KW ECO:0000256|RuleBase:RU004464};
KW NAD {ECO:0000256|HAMAP-Rule:MF_01356, ECO:0000256|RuleBase:RU004464};
KW NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|HAMAP-Rule:MF_01356};
KW Plastoquinone {ECO:0000256|ARBA:ARBA00022957, ECO:0000256|HAMAP-
KW Rule:MF_01356};
KW Quinone {ECO:0000256|ARBA:ARBA00022719, ECO:0000256|HAMAP-Rule:MF_01356};
KW Reference proteome {ECO:0000313|Proteomes:UP000035901};
KW Thylakoid {ECO:0000256|HAMAP-Rule:MF_01356};
KW Translocase {ECO:0000256|HAMAP-Rule:MF_01356};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius};
KW Transport {ECO:0000256|HAMAP-Rule:MF_01356}.
FT TRANSMEM 58..77
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 67..177
FT /note="NADH:ubiquinone oxidoreductase-like 20kDa subunit"
FT /evidence="ECO:0000259|Pfam:PF01058"
FT BINDING 67
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01356"
FT BINDING 68
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01356"
FT BINDING 132
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01356"
FT BINDING 163
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01356"
SQ SEQUENCE 254 AA; 27018 MW; 2A57DC9EF5505D10 CRC64;
MTQTPSTPAT SPSVAALRDL REASCSPVGA PAVTSDLSEN VILTTLDDLH NWARLSSLWP
LLYGTACCFI EFAALIGSRF DFDRFGLVPR SSPRQADLLI VAGTVTMKMA PALVRLYEQM
PEPKYVIAMG ACTITGGMFS ADSTTAVRGV DKLIPVDLYL PGCPPRPEAI FDAVIKLRKK
VGNEALAERA NLMPSHRYCT VAHQMTAVEP IVTGAYLSAE SQQKALAAAT GLPMAATLEP
AAAEPATLPR QSNA
//
