ID H0YK49_HUMAN Unreviewed; 229 AA.
AC H0YK49;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 24-JAN-2024, entry version 64.
DE RecName: Full=Electron transfer flavoprotein subunit alpha {ECO:0000256|PIRNR:PIRNR000089};
DE Short=Alpha-ETF {ECO:0000256|PIRNR:PIRNR000089};
GN Name=ETFA {ECO:0000313|Ensembl:ENSP00000452659.1};
OS Homo sapiens (Human).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Homo.
OX NCBI_TaxID=9606 {ECO:0000313|Ensembl:ENSP00000452659.1, ECO:0000313|Proteomes:UP000005640};
RN [1] {ECO:0000313|Ensembl:ENSP00000452659.1, ECO:0000313|Proteomes:UP000005640}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=16572171; DOI=10.1038/nature04601;
RA Zody M.C., Garber M., Sharpe T., Young S.K., Rowen L., O'Neill K.,
RA Whittaker C.A., Kamal M., Chang J.L., Cuomo C.A., Dewar K.,
RA FitzGerald M.G., Kodira C.D., Madan A., Qin S., Yang X., Abbasi N.,
RA Abouelleil A., Arachchi H.M., Baradarani L., Birditt B., Bloom S.,
RA Bloom T., Borowsky M.L., Burke J., Butler J., Cook A., DeArellano K.,
RA DeCaprio D., Dorris L. III, Dors M., Eichler E.E., Engels R., Fahey J.,
RA Fleetwood P., Friedman C., Gearin G., Hall J.L., Hensley G., Johnson E.,
RA Jones C., Kamat A., Kaur A., Locke D.P., Madan A., Munson G., Jaffe D.B.,
RA Lui A., Macdonald P., Mauceli E., Naylor J.W., Nesbitt R., Nicol R.,
RA O'Leary S.B., Ratcliffe A., Rounsley S., She X., Sneddon K.M., Stewart S.,
RA Sougnez C., Stone S.M., Topham K., Vincent D., Wang S., Zimmer A.R.,
RA Birren B.W., Hood L., Lander E.S., Nusbaum C.;
RT "Analysis of the DNA sequence and duplication history of human chromosome
RT 15.";
RL Nature 440:671-675(2006).
RN [2] {ECO:0007829|PubMed:21269460}
RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX PubMed=21269460; DOI=10.1186/1752-0509-5-17;
RA Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Burckstummer T.,
RA Bennett K.L., Superti-Furga G., Colinge J.;
RT "Initial characterization of the human central proteome.";
RL BMC Syst. Biol. 5:17-17(2011).
RN [3] {ECO:0007829|PubMed:23186163}
RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX PubMed=23186163;
RA Zhou H., Di Palma S., Preisinger C., Peng M., Polat A.N., Heck A.J.,
RA Mohammed S.;
RT "Toward a comprehensive characterization of a human cancer cell
RT phosphoproteome.";
RL J. Proteome Res. 12:260-271(2013).
RN [4] {ECO:0007829|PubMed:24275569}
RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX PubMed=24275569; DOI=10.1016/j.jprot.2013.11.014;
RA Bian Y., Song C., Cheng K., Dong M., Wang F., Huang J., Sun D., Wang L.,
RA Ye M., Zou H.;
RT "An enzyme assisted RP-RPLC approach for in-depth analysis of human liver
RT phosphoproteome.";
RL J. Proteomics 96:253-262(2014).
RN [5] {ECO:0007829|PubMed:25944712}
RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX PubMed=25944712;
RA Vaca Jacome A.S., Rabilloud T., Schaeffer-Reiss C., Rompais M., Ayoub D.,
RA Lane L., Bairoch A., Van Dorsselaer A., Carapito C.;
RT "N-terminome analysis of the human mitochondrial proteome.";
RL Proteomics 15:2519-2524(2015).
RN [6] {ECO:0000313|Ensembl:ENSP00000452659.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2023) to UniProtKB.
CC -!- FUNCTION: The electron transfer flavoprotein serves as a specific
CC electron acceptor for several dehydrogenases, including five acyl-CoA
CC dehydrogenases, glutaryl-CoA and sarcosine dehydrogenase. It transfers
CC the electrons to the main mitochondrial respiratory chain via ETF-
CC ubiquinone oxidoreductase (ETF dehydrogenase).
CC {ECO:0000256|PIRNR:PIRNR000089}.
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|PIRNR:PIRNR000089,
CC ECO:0000256|PIRSR:PIRSR000089-1};
CC Note=Binds 1 FAD per dimer. {ECO:0000256|PIRNR:PIRNR000089,
CC ECO:0000256|PIRSR:PIRSR000089-1};
CC -!- SUBUNIT: Heterodimer of an alpha and a beta subunit.
CC {ECO:0000256|PIRNR:PIRNR000089}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion matrix
CC {ECO:0000256|ARBA:ARBA00004305, ECO:0000256|PIRNR:PIRNR000089}.
CC -!- SIMILARITY: Belongs to the ETF alpha-subunit/FixB family.
CC {ECO:0000256|ARBA:ARBA00005817, ECO:0000256|PIRNR:PIRNR000089}.
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DR EMBL; AC027243; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AC091100; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; KF456099; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; H0YK49; -.
DR SMR; H0YK49; -.
DR IntAct; H0YK49; 1.
DR MetOSite; H0YK49; -.
DR MassIVE; H0YK49; -.
DR MaxQB; H0YK49; -.
DR PeptideAtlas; H0YK49; -.
DR ProteomicsDB; 39551; -.
DR Antibodypedia; 14895; 408 antibodies from 33 providers.
DR Ensembl; ENST00000559602.5; ENSP00000452659.1; ENSG00000140374.17.
DR UCSC; uc059lwd.1; human.
DR HGNC; HGNC:3481; ETFA.
DR VEuPathDB; HostDB:ENSG00000140374; -.
DR GeneTree; ENSGT00390000013422; -.
DR HOGENOM; CLU_034178_0_1_1; -.
DR ChiTaRS; ETFA; human.
DR Proteomes; UP000005640; Chromosome 15.
DR Bgee; ENSG00000140374; Expressed in oocyte and 207 other cell types or tissues.
DR ExpressionAtlas; H0YK49; baseline and differential.
DR GO; GO:0005759; C:mitochondrial matrix; IEA:UniProtKB-SubCell.
DR GO; GO:0005739; C:mitochondrion; IDA:HPA.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR Gene3D; 3.40.50.620; HUPs; 1.
DR Gene3D; 3.40.50.1220; TPP-binding domain; 1.
DR InterPro; IPR029035; DHS-like_NAD/FAD-binding_dom.
DR InterPro; IPR014730; ETF_a/b_N.
DR InterPro; IPR001308; ETF_a/FixB.
DR InterPro; IPR014731; ETF_asu_C.
DR InterPro; IPR018206; ETF_asu_C_CS.
DR InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR PANTHER; PTHR43153; ELECTRON TRANSFER FLAVOPROTEIN ALPHA; 1.
DR PANTHER; PTHR43153:SF1; ELECTRON TRANSFER FLAVOPROTEIN SUBUNIT ALPHA, MITOCHONDRIAL; 1.
DR Pfam; PF01012; ETF; 1.
DR Pfam; PF00766; ETF_alpha; 1.
DR PIRSF; PIRSF000089; Electra_flavoP_a; 1.
DR SUPFAM; SSF52402; Adenine nucleotide alpha hydrolases-like; 1.
DR SUPFAM; SSF52467; DHS-like NAD/FAD-binding domain; 1.
DR PROSITE; PS00696; ETF_ALPHA; 1.
PE 1: Evidence at protein level;
KW Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW ECO:0000256|PIRNR:PIRNR000089};
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|PIRNR:PIRNR000089};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630,
KW ECO:0000256|PIRNR:PIRNR000089};
KW Mitochondrion {ECO:0000256|PIRNR:PIRNR000089};
KW Proteomics identification {ECO:0007829|EPD:H0YK49,
KW ECO:0007829|MaxQB:H0YK49};
KW Reference proteome {ECO:0000313|Proteomes:UP000005640};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|PIRNR:PIRNR000089}.
FT DOMAIN 12..83
FT /note="Electron transfer flavoprotein alpha/beta-subunit N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF01012"
FT DOMAIN 107..187
FT /note="Electron transfer flavoprotein alpha subunit C-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF00766"
FT BINDING 119
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 144..145
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 158..162
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 175..182
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 196
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
SQ SEQUENCE 229 AA; 24160 MW; 61086C3848595B48 CRC64;
MFRAAAPGQL RRANLLPRVA AKLEVAPISD IIAIKSPDTF VRTIYAGNAL CTVKCDEKVK
VFSVRGTSFD AAATSGGSAS SEKASSTSPV EISEWLDQKL TKSDRPELTG AKVVVSGGRG
LKSGENFKLL YDLADQLHAA VGASRAAVDA GFVPNDMQVG QTGKIVAPEL YIAVGISGAI
QHLAGMKDSK TIVAINKDPE APIFQVADYG IVADLFKVVP EMTEILKKK
//