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NU2C2_ARATH
ID   NU2C2_ARATH             Reviewed;         512 AA.
AC   P0CC33; O47022; Q9T3G4;
DT   09-FEB-2010, integrated into UniProtKB/Swiss-Prot.
DT   09-FEB-2010, sequence version 1.
DT   03-AUG-2022, entry version 67.
DE   RecName: Full=NAD(P)H-quinone oxidoreductase subunit 2 B, chloroplastic {ECO:0000255|HAMAP-Rule:MF_00445};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_00445};
DE   AltName: Full=NAD(P)H dehydrogenase, subunit 2 B {ECO:0000255|HAMAP-Rule:MF_00445};
DE   AltName: Full=NADH-plastoquinone oxidoreductase subunit 2 B {ECO:0000255|HAMAP-Rule:MF_00445};
GN   Name=ndhB2 {ECO:0000255|HAMAP-Rule:MF_00445}; Synonyms=ndhB-B;
GN   OrderedLocusNames=AtCg01250;
OS   Arabidopsis thaliana (Mouse-ear cress).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis.
OX   NCBI_TaxID=3702;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND RNA EDITING.
RC   STRAIN=cv. Landsberg erecta;
RA   del Campo E.M., Albertazzi F., Freyer R., Maier R.M., Sabater B.,
RA   Martin M.;
RT   "Sequence and transcript editing of ndhB gene of Arabidopsis thaliana L.
RT   plastid.";
RL   (er) Plant Gene Register PGR98-093(1998).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Columbia;
RX   PubMed=10574454; DOI=10.1093/dnares/6.5.283;
RA   Sato S., Nakamura Y., Kaneko T., Asamizu E., Tabata S.;
RT   "Complete structure of the chloroplast genome of Arabidopsis thaliana.";
RL   DNA Res. 6:283-290(1999).
CC   -!- FUNCTION: NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN
CC       and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain
CC       and possibly in a chloroplast respiratory chain. The immediate electron
CC       acceptor for the enzyme in this species is believed to be
CC       plastoquinone. Couples the redox reaction to proton translocation, and
CC       thus conserves the redox energy in a proton gradient.
CC       {ECO:0000255|HAMAP-Rule:MF_00445}.
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:0000255|HAMAP-Rule:MF_00445};
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:0000255|HAMAP-Rule:MF_00445};
CC   -!- SUBUNIT: NDH is composed of at least 16 different subunits, 5 of which
CC       are encoded in the nucleus. {ECO:0000255|HAMAP-Rule:MF_00445}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00445}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00445}.
CC   -!- RNA EDITING: Modified_positions=50 {ECO:0000269|Ref.1}, 156
CC       {ECO:0000269|Ref.1}, 196 {ECO:0000269|Ref.1}, 249 {ECO:0000269|Ref.1},
CC       277 {ECO:0000269|Ref.1}, 279 {ECO:0000269|Ref.1}, 419
CC       {ECO:0000269|Ref.1}, 494 {ECO:0000269|Ref.1};
CC   -!- SIMILARITY: Belongs to the complex I subunit 2 family.
CC       {ECO:0000255|HAMAP-Rule:MF_00445}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=BAA84447.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AP000423; BAA84447.1; ALT_SEQ; Genomic_DNA.
DR   RefSeq; NP_051119.2; NC_000932.1.
DR   AlphaFoldDB; P0CC33; -.
DR   SMR; P0CC33; -.
DR   PRIDE; P0CC33; -.
DR   GeneID; 4042815; -.
DR   KEGG; ath:ArthCp086; -.
DR   Araport; ATCG01250; -.
DR   HOGENOM; CLU_007100_1_2_1; -.
DR   InParanoid; P0CC33; -.
DR   OrthoDB; 1153818at2759; -.
DR   BioCyc; ARA:ATCG01250-MON; -.
DR   PRO; PR:P0CC33; -.
DR   Proteomes; UP000006548; Chloroplast.
DR   ExpressionAtlas; P0CC33; baseline and differential.
DR   Genevisible; P0CC33; AT.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   GO; GO:0042773; P:ATP synthesis coupled electron transport; IEA:InterPro.
DR   GO; GO:0019684; P:photosynthesis, light reaction; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00445; NDH1_NuoN_1; 1.
DR   InterPro; IPR010096; NADH-Q_OxRdtase_suN/2.
DR   InterPro; IPR001750; ND/Mrp_mem.
DR   InterPro; IPR045693; Ndh2_N.
DR   Pfam; PF19530; Ndh2_N; 1.
DR   Pfam; PF00361; Proton_antipo_M; 1.
DR   TIGRFAMs; TIGR01770; NDH_I_N; 1.
PE   2: Evidence at transcript level;
KW   Chloroplast; Membrane; NAD; NADP; Plastid; Plastoquinone; Quinone;
KW   Reference proteome; RNA editing; Thylakoid; Translocase; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..512
FT                   /note="NAD(P)H-quinone oxidoreductase subunit 2 B,
FT                   chloroplastic"
FT                   /id="PRO_0000391254"
FT   TRANSMEM        31..51
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        57..77
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        99..119
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        124..144
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        149..169
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        183..203
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        229..249
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        261..281
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        295..315
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        323..343
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        354..374
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        395..415
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        418..438
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT   TRANSMEM        484..504
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
SQ   SEQUENCE   512 AA;  57153 MW;  1A998961C3556F2A CRC64;
     MIWHVQNENF ILDSTRIFMK AFHLLLFDGS FIFPECILIF GLILLLMIDL TSDQKDIPWL
     YFISSTSFVM SITALLFRWR EEPMISFSGN FQTNNFNEIF QFLILLCSTL CIPLSVEYIE
     CTEMAITEFL LFILTATLGG MFLCGANDLI TIFVALECFS LCSYLLSGYT KKDIRSNEAT
     MKYLLMGGAS SSILVYGFSW LYGSSGGEIE LQEIVNGLIN TQMYNSPGIS IALIFITVGI
     GFKLSLAPFH QWTPDVYEGS PTPVVAFLSV TSKVAALALA TRIFDIPFYF SSNEWHLLLE
     ILAILSMIFG NLIAITQTSM KRMLAYSSIG QIGYVIIGII VGDSNGGYAS MITYMLFYIA
     MNLGTFACII LFGLRTGTDN IRDYAGLYTK DPFLALSLAL CLLSLGGLPP LAGFFGKLYL
     FWCGWQAGLY FLVSIGLLTS VLSIYYYLKI IKLLMTGRNQ EITPHMRNYR ISPLRSNNSI
     ELSMIVCVIA STILGISMNP IIAIAQDTLF SF
 
 
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