ID   NDUS3_MARPO             Reviewed;         195 AA.
AC   P34944;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 2.
DT   25-NOV-2008, entry version 57.
DE   RecName: Full=NADH-ubiquinone oxidoreductase 27 kDa subunit;
DE            EC=1.6.5.3;
DE            EC=1.6.99.3;
DE   AltName: Full=Complex I-27kD;
DE            Short=CI-27kD;
DE   AltName: Full=NADH dehydrogenase subunit 9;
GN   Name=NAD9;
OS   Marchantia polymorpha (Liverwort).
OG   Mitochondrion.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Marchantiophyta;
OC   Superclass II; Marchantiopsida; Marchantiidae; Marchantiales;
OC   Marchantiaceae; Marchantia.
OX   NCBI_TaxID=3197;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   MEDLINE=92114051; PubMed=1731062; DOI=10.1016/0022-2836(92)90708-R;
RA   Oda K., Yamato K., Ohta E., Nakamura Y., Takemura M., Nozato N.,
RA   Akashi K., Kanegae T., Ogura Y., Kohchi T., Ohyama K.;
RT   "Gene organization deduced from the complete sequence of liverwort
RT   Marchantia polymorpha mitochondrial DNA. A primitive form of plant
RT   mitochondrial genome.";
RL   J. Mol. Biol. 223:1-7(1992).
CC   -!- FUNCTION: Core subunit of the mitochondrial membrane respiratory
CC       chain NADH dehydrogenase (Complex I) that is believed to belong to
CC       the minimal assembly required for catalysis. Complex I functions
CC       in the transfer of electrons from NADH to the respiratory chain.
CC       The immediate electron acceptor for the enzyme is believed to be
CC       ubiquinone (By similarity).
CC   -!- CATALYTIC ACTIVITY: NADH + ubiquinone = NAD(+) + ubiquinol.
CC   -!- CATALYTIC ACTIVITY: NADH + acceptor = NAD(+) + reduced acceptor.
CC   -!- SUBUNIT: Complex I is composed of about 30 different subunits.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane.
CC   -!- SIMILARITY: Belongs to the complex I 30 kDa subunit family.
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DR   EMBL; M68929; AAC09443.1; ALT_INIT; Genomic_DNA.
DR   PIR; S25996; S25996.
DR   RefSeq; NP_054446.1; -.
DR   GeneID; 2948426; -.
DR   GO; GO:0005746; C:mitochondrial respiratory chain; IEA:UniProtKB-KW.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR   GO; GO:0006120; P:mitochondrial electron transport, NADH to u...; IEA:InterPro.
DR   GO; GO:0006810; P:transport; IEA:UniProtKB-KW.
DR   InterPro; IPR010218; NADH_DH_csu.
DR   InterPro; IPR001268; NADH_DHase_Ub_30kDa_su.
DR   Pfam; PF00329; Complex1_30kDa; 1.
DR   ProDom; PD001581; Complex1_30K; 1.
DR   TIGRFAMs; TIGR01961; NuoC_fam; 1.
DR   PROSITE; PS00542; COMPLEX1_30K; 1.
PE   3: Inferred from homology;
KW   Electron transport; Membrane; Mitochondrion;
KW   Mitochondrion inner membrane; NAD; Oxidoreductase; Respiratory chain;
KW   Transport; Ubiquinone.
FT   CHAIN         1    195       NADH-ubiquinone oxidoreductase 27 kDa
FT                                subunit.
FT                                /FTId=PRO_0000118641.
SQ   SEQUENCE   195 AA;  23354 MW;  D123890812812ABB CRC64;
     MDNQLFFKSL IATLPKWIHK CQTSKHENIL YTNPNSLFQL LYFLKYHTNT RFKVLIDICG
     VDYPSRKRRF EVVYNLLSID YNTRIRILTS VDEITPICSV VSIFPSAGWW ERETWDMFGV
     YFSNHPDLRR ILTDYGFEGH PLRKDFPLSG YVEVRYDDSE KRVVSEPIEM TQEFRYFDFA
     SPWEQMSRSD ESNQK
//