ID   NDUS4_GEKJA             Reviewed;         175 AA.
AC   Q66XS7;
DT   03-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2004, sequence version 1.
DT   25-MAY-2022, entry version 49.
DE   RecName: Full=NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial;
DE   AltName: Full=Complex I-18 kDa;
DE            Short=CI-18 kDa;
DE   AltName: Full=NADH-ubiquinone oxidoreductase 18 kDa subunit;
DE   Flags: Precursor;
GN   Name=NDUFS4; ORFNames=GekBS037P;
OS   Gekko japonicus (Schlegel's Japanese gecko).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Lepidosauria; Squamata; Bifurcata; Gekkota; Gekkonidae; Gekkoninae; Gekko.
OX   NCBI_TaxID=146911;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Brain;
RA   Gu X., Ding F., Liu Y., Liu M., Jiang M., Yang H.;
RT   "Analysis of expressed sequence tags and cloning of full length cDNA from
RT   brain and spinal cord cDNA library in Gekko.";
RL   Submitted (JUL-2004) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Accessory subunit of the mitochondrial membrane respiratory
CC       chain NADH dehydrogenase (Complex I), that is believed not to be
CC       involved in catalysis. Complex I functions in the transfer of electrons
CC       from NADH to the respiratory chain. The immediate electron acceptor for
CC       the enzyme is believed to be ubiquinone (By similarity).
CC       {ECO:0000250|UniProtKB:O43181}.
CC   -!- SUBUNIT: Complex I is composed of 45 different subunits. This is a
CC       component of the iron-sulfur (IP) fragment of the enzyme (By
CC       similarity). {ECO:0000250|UniProtKB:O43181}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC       {ECO:0000250|UniProtKB:O43181}; Peripheral membrane protein
CC       {ECO:0000250|UniProtKB:O43181}; Matrix side
CC       {ECO:0000250|UniProtKB:O43181}.
CC   -!- SIMILARITY: Belongs to the complex I NDUFS4 subunit family.
CC       {ECO:0000305}.
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DR   EMBL; AY697508; AAU05732.1; -; mRNA.
DR   AlphaFoldDB; Q66XS7; -.
DR   SMR; Q66XS7; -.
DR   GO; GO:0005747; C:mitochondrial respiratory chain complex I; ISS:UniProtKB.
DR   GO; GO:0007420; P:brain development; ISS:UniProtKB.
DR   GO; GO:0045333; P:cellular respiration; ISS:UniProtKB.
DR   GO; GO:0022900; P:electron transport chain; IEA:InterPro.
DR   GO; GO:0032981; P:mitochondrial respiratory chain complex I assembly; ISS:UniProtKB.
DR   GO; GO:0048146; P:positive regulation of fibroblast proliferation; ISS:UniProtKB.
DR   GO; GO:0072593; P:reactive oxygen species metabolic process; ISS:UniProtKB.
DR   GO; GO:0051591; P:response to cAMP; ISS:UniProtKB.
DR   Gene3D; 3.30.160.190; -; 1.
DR   InterPro; IPR006885; NADH_UbQ_FeS_4_mit.
DR   InterPro; IPR038532; NDUFS4-like_sf.
DR   PANTHER; PTHR12219; PTHR12219; 1.
DR   Pfam; PF04800; ETC_C1_NDUFA4; 1.
PE   2: Evidence at transcript level;
KW   Electron transport; Membrane; Mitochondrion; Mitochondrion inner membrane;
KW   Respiratory chain; Transit peptide; Transport.
FT   TRANSIT         1..42
FT                   /note="Mitochondrion"
FT                   /evidence="ECO:0000250"
FT   CHAIN           43..175
FT                   /note="NADH dehydrogenase [ubiquinone] iron-sulfur protein
FT                   4, mitochondrial"
FT                   /id="PRO_0000250710"
FT   REGION          150..175
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        160..175
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   175 AA;  19718 MW;  1C2C7921E360B671 CRC64;
     MAAVSMSVAL KQALWGRRAA AVGAVSVSKV PTRLLSTSTW RLAQDQTQDT QLIAVDEKLD
     ITTLTGVPEE HIKTRKVRIF VPARNNMQSG VNNTKKWKME FDTRERWENP LMGWSSTADP
     LSNLVLTFST KEDAVAFAEK NGWSFDVEER KVPKPKSKSY GANFSWNKRT RVSTK