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SDHAA_XENLA
ID   SDHAA_XENLA             Reviewed;         665 AA.
AC   Q6PA58;
DT   23-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 109.
DE   RecName: Full=Succinate dehydrogenase [ubiquinone] flavoprotein subunit A, mitochondrial;
DE            EC=1.3.5.1 {ECO:0000250|UniProtKB:P31040};
DE   AltName: Full=Flavoprotein subunit of complex II A;
DE            Short=Fp;
DE   Flags: Precursor;
GN   Name=sdha-a;
OS   Xenopus laevis (African clawed frog).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC   Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Xenopus.
OX   NCBI_TaxID=8355;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Kidney;
RG   NIH - Xenopus Gene Collection (XGC) project;
RL   Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Flavoprotein (FP) subunit of succinate dehydrogenase (SDH)
CC       that is involved in complex II of the mitochondrial electron transport
CC       chain and is responsible for transferring electrons from succinate to
CC       ubiquinone (coenzyme Q). {ECO:0000250|UniProtKB:P31040}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a quinone + succinate = a quinol + fumarate;
CC         Xref=Rhea:RHEA:40523, ChEBI:CHEBI:24646, ChEBI:CHEBI:29806,
CC         ChEBI:CHEBI:30031, ChEBI:CHEBI:132124; EC=1.3.5.1;
CC         Evidence={ECO:0000250|UniProtKB:P31040};
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692;
CC         Evidence={ECO:0000250|UniProtKB:Q0QF01};
CC   -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; fumarate
CC       from succinate (eukaryal route): step 1/1.
CC       {ECO:0000250|UniProtKB:P31040}.
CC   -!- SUBUNIT: Component of complex II composed of four subunits: a
CC       flavoprotein (FP), an iron-sulfur protein (IP), and a cytochrome b
CC       composed of a large and a small subunit.
CC       {ECO:0000250|UniProtKB:Q0QF01}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC       {ECO:0000250|UniProtKB:Q0QF01}; Peripheral membrane protein
CC       {ECO:0000250|UniProtKB:Q0QF01}; Matrix side
CC       {ECO:0000250|UniProtKB:Q0QF01}.
CC   -!- SIMILARITY: Belongs to the FAD-dependent oxidoreductase 2 family.
CC       FRD/SDH subfamily. {ECO:0000305}.
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DR   EMBL; BC060446; AAH60446.1; -; mRNA.
DR   RefSeq; NP_001083473.1; NM_001090004.1.
DR   AlphaFoldDB; Q6PA58; -.
DR   SMR; Q6PA58; -.
DR   DNASU; 398946; -.
DR   GeneID; 398946; -.
DR   KEGG; xla:398946; -.
DR   CTD; 398946; -.
DR   Xenbase; XB-GENE-17344569; sdha.L.
DR   OrthoDB; 606981at2759; -.
DR   UniPathway; UPA00223; UER01006.
DR   Proteomes; UP000186698; Chromosome 6L.
DR   Bgee; 398946; Expressed in heart and 20 other tissues.
DR   GO; GO:0005743; C:mitochondrial inner membrane; ISS:UniProtKB.
DR   GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR   GO; GO:0008177; F:succinate dehydrogenase (ubiquinone) activity; ISS:UniProtKB.
DR   GO; GO:0022900; P:electron transport chain; IEA:InterPro.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniPathway.
DR   Gene3D; 3.50.50.60; -; 1.
DR   Gene3D; 3.90.700.10; -; 1.
DR   InterPro; IPR003953; FAD-binding_2.
DR   InterPro; IPR036188; FAD/NAD-bd_sf.
DR   InterPro; IPR003952; FRD_SDH_FAD_BS.
DR   InterPro; IPR037099; Fum_R/Succ_DH_flav-like_C_sf.
DR   InterPro; IPR015939; Fum_Rdtase/Succ_DH_flav-like_C.
DR   InterPro; IPR030664; SdhA/FrdA/AprA.
DR   InterPro; IPR027477; Succ_DH/fumarate_Rdtase_cat_sf.
DR   InterPro; IPR011281; Succ_DH_flav_su_fwd.
DR   InterPro; IPR014006; Succ_Dhase_FrdA_Gneg.
DR   PANTHER; PTHR11632; PTHR11632; 1.
DR   Pfam; PF00890; FAD_binding_2; 1.
DR   Pfam; PF02910; Succ_DH_flav_C; 1.
DR   SUPFAM; SSF46977; SSF46977; 1.
DR   SUPFAM; SSF51905; SSF51905; 1.
DR   SUPFAM; SSF56425; SSF56425; 1.
DR   TIGRFAMs; TIGR01816; sdhA_forward; 1.
DR   TIGRFAMs; TIGR01812; sdhA_frdA_Gneg; 1.
DR   PROSITE; PS00504; FRD_SDH_FAD_BINDING; 1.
PE   2: Evidence at transcript level;
KW   Electron transport; FAD; Flavoprotein; Membrane; Mitochondrion;
KW   Mitochondrion inner membrane; Oxidoreductase; Reference proteome;
KW   Transit peptide; Transport; Tricarboxylic acid cycle.
FT   TRANSIT         1..45
FT                   /note="Mitochondrion"
FT                   /evidence="ECO:0000250|UniProtKB:Q0QF01"
FT   CHAIN           46..665
FT                   /note="Succinate dehydrogenase [ubiquinone] flavoprotein
FT                   subunit A, mitochondrial"
FT                   /id="PRO_0000272305"
FT   ACT_SITE        343
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         71..76
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         94..109
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         278
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         299
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         311
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         410
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         443
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         454
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   BINDING         459..460
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
FT   MOD_RES         102
FT                   /note="Tele-8alpha-FAD histidine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9YHT1"
SQ   SEQUENCE   665 AA;  72854 MW;  2C5F88CABBE479D5 CRC64;
     MALLKVAPSR LLSRALQLAS RVQNCTPTVT TARRNFHFTV YGRKDTSAKV SDSISTQYPV
     VDHEFDAVVV GAGGAGLRAA FGLSEAGFNT ACITKLFPTR SHTVAAQGGI NAALGNMEDD
     DWRWHFYDTV KGSDWLGDQD AIHYMTEQAP ASVIELENYG MPFSRTEQGK IYQRAFGGQS
     LKYGKGGQAH RCCCVADRTG HSLLHTLYGR SLRYDTSYFV EYFALDLLME NGECRGVIAL
     CMEDGSIHRF RAKNTVIATG GYGRTFFSCT SAHTSTGDGT AMVTRAGLPC QDLEFVQFHP
     TGIYGAGCLI TEGCRGEGGI LINSEGERFM ERYAPVAKDL ASRDVVSRSM TIEIREGRGC
     GKDKDHVYLQ LHHLPPSQLA SRLPGISETA MIFAGVDVTK EPIPVLPTVH YNMGGIPTNY
     KGQVITHVNG EDRVVPGLYS CGEAASASVH GANRLGANSL LDLVVFGRAC ALSIAESCKP
     GEAVPSIKEN AGEESVANLD KLRYANGSTR TSEIRINMQK TMQNHAAVFR TGSVLKEGCE
     KLSVINSSMD DIKTFDRGIV WNTDLVETLE LQNLMLCALQ TINGAEARKE SRGAHAREDY
     KVRIDEYDFS KPLQGQQKKS FNEHWRKHTL SYVDKKGKVS LEYRPVIDTT LNEDCASVPP
     AIRSY
 
 
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