NU2M_CERSI
ID NU2M_CERSI Reviewed; 347 AA.
AC O03197;
DT 15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-1997, sequence version 1.
DT 25-MAY-2022, entry version 83.
DE RecName: Full=NADH-ubiquinone oxidoreductase chain 2 {ECO:0000250|UniProtKB:P03891};
DE EC=7.1.1.2 {ECO:0000250|UniProtKB:P03891};
DE AltName: Full=NADH dehydrogenase subunit 2;
GN Name=MT-ND2 {ECO:0000250|UniProtKB:P03891}; Synonyms=MTND2, NADH2, ND2;
OS Ceratotherium simum (White rhinoceros) (Square-lipped rhinoceros).
OG Mitochondrion.
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Perissodactyla; Rhinocerotidae; Ceratotherium.
OX NCBI_TaxID=9807;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=9126560; DOI=10.1006/mpev.1996.0385;
RA Xu X., Arnason U.;
RT "The complete mitochondrial DNA sequence of the white rhinoceros,
RT Ceratotherium simum, and comparison with the mtDNA sequence of the Indian
RT rhinoceros, Rhinoceros unicornis.";
RL Mol. Phylogenet. Evol. 7:189-194(1997).
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:0000250|UniProtKB:P03891}.
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:0000250|UniProtKB:P03891};
CC -!- SUBUNIT: Core subunit of respiratory chain NADH dehydrogenase (Complex
CC I) which is composed of 45 different subunits. Interacts with TMEM242
CC (By similarity). {ECO:0000250|UniProtKB:P03891,
CC ECO:0000250|UniProtKB:P03892}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC {ECO:0000250|UniProtKB:P03892}; Multi-pass membrane protein
CC {ECO:0000255}.
CC -!- SIMILARITY: Belongs to the complex I subunit 2 family. {ECO:0000305}.
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DR EMBL; Y07726; CAA69007.1; -; Genomic_DNA.
DR RefSeq; NP_007434.1; NC_001808.1.
DR AlphaFoldDB; O03197; -.
DR SMR; O03197; -.
DR GeneID; 808100; -.
DR CTD; 4536; -.
DR OrthoDB; 1153818at2759; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005743; C:mitochondrial inner membrane; ISS:UniProtKB.
DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; ISS:UniProtKB.
DR GO; GO:0006120; P:mitochondrial electron transport, NADH to ubiquinone; ISS:UniProtKB.
DR GO; GO:0032981; P:mitochondrial respiratory chain complex I assembly; ISS:UniProtKB.
DR InterPro; IPR010933; NADH_DH_su2_C.
DR InterPro; IPR003917; NADH_UbQ_OxRdtase_chain2.
DR InterPro; IPR001750; ND/Mrp_mem.
DR Pfam; PF06444; NADH_dehy_S2_C; 1.
DR Pfam; PF00361; Proton_antipo_M; 1.
DR PRINTS; PR01436; NADHDHGNASE2.
PE 3: Inferred from homology;
KW Electron transport; Membrane; Mitochondrion; Mitochondrion inner membrane;
KW NAD; Respiratory chain; Translocase; Transmembrane; Transmembrane helix;
KW Transport; Ubiquinone.
FT CHAIN 1..347
FT /note="NADH-ubiquinone oxidoreductase chain 2"
FT /id="PRO_0000117568"
FT TRANSMEM 1..21
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 25..45
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 60..80
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 89..109
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 111..131
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 149..169
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 178..198
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 201..221
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 242..262
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 274..294
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 323..343
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 347 AA; 39079 MW; 2B59C4B76D1171F3 CRC64;
MNPIVFSTIL TTAIMGTMIV MTSSHWLMIW IGFEMNLLAI IPILMKKFNP RAMEAATKYF
LTQATASMLL MMAIIINLMF SSQWTITKIF NPTASIIMTS ALIMKLGLSP FHFWVPEVTQ
GIPLVSGLIL LTWQKLAPMS VLYQIAPSIN LDMLMTSALL SILVGGWGGL NQTQLRKIMA
YSSIAHMGWM TAILTYNPTM TALNMLIYIM MTLTTFMLFM LNSSTTTLSL SHTWNKTPLI
TSLILITMLS LGGLPPLSGF IPKWMIIQEL TKNDSIILPT SMAIMALLNL YFYMRLTYST
SLTMFPSTNN MKMKWQFENP KRMNFLPTLI IMSTLLLPLT PIMSTLN
