ID A0A0D2WID1_CAPO3 Unreviewed; 339 AA.
AC A0A0D2WID1;
DT 29-APR-2015, integrated into UniProtKB/TrEMBL.
DT 29-APR-2015, sequence version 1.
DT 27-MAR-2024, entry version 28.
DE RecName: Full=Electron transfer flavoprotein subunit alpha {ECO:0000256|PIRNR:PIRNR000089};
DE Short=Alpha-ETF {ECO:0000256|PIRNR:PIRNR000089};
GN ORFNames=CAOG_000331 {ECO:0000313|EMBL:KJE88738.1};
OS Capsaspora owczarzaki (strain ATCC 30864).
OC Eukaryota; Filasterea; Capsaspora.
OX NCBI_TaxID=595528 {ECO:0000313|EMBL:KJE88738.1, ECO:0000313|Proteomes:UP000008743};
RN [1] {ECO:0000313|Proteomes:UP000008743}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=ATCC 30864 {ECO:0000313|Proteomes:UP000008743};
RA Russ C., Cuomo C., Burger G., Gray M.W., Holland P.W.H., King N.,
RA Lang F.B.F., Roger A.J., Ruiz-Trillo I., Young S.K., Zeng Q., Gargeya S.,
RA Alvarado L., Berlin A., Chapman S.B., Chen Z., Freedman E., Gellesch M.,
RA Goldberg J., Griggs A., Gujja S., Heilman E., Heiman D., Howarth C.,
RA Mehta T., Neiman D., Pearson M., Roberts A., Saif S., Shea T., Shenoy N.,
RA Sisk P., Stolte C., Sykes S., White J., Yandava C., Haas B., Nusbaum C.,
RA Birren B.;
RT "The Genome Sequence of Capsaspora owczarzaki ATCC 30864.";
RL Submitted (FEB-2011) to the EMBL/GenBank/DDBJ databases.
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|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; KE346360; KJE88738.1; -; Genomic_DNA.
DR RefSeq; XP_004365202.1; XM_004365145.2.
DR AlphaFoldDB; A0A0D2WID1; -.
DR STRING; 595528.A0A0D2WID1; -.
DR EnsemblProtists; KJE88738; KJE88738; CAOG_000331.
DR GeneID; 14902034; -.
DR eggNOG; KOG3954; Eukaryota.
DR InParanoid; A0A0D2WID1; -.
DR OMA; WRPYAEQ; -.
DR OrthoDB; 5481222at2759; -.
DR PhylomeDB; A0A0D2WID1; -.
DR Proteomes; UP000008743; Unassembled WGS sequence.
DR GO; GO:0005759; C:mitochondrial matrix; IEA:UniProtKB-SubCell.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR CDD; cd01715; ETF_alpha; 1.
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; IPR033947; ETF_alpha_N.
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 SMART; SM00893; ETF; 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 3: Inferred from homology;
KW Electron transport {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 Reference proteome {ECO:0000313|Proteomes:UP000008743};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|PIRNR:PIRNR000089}.
FT DOMAIN 27..209
FT /note="Electron transfer flavoprotein alpha/beta-subunit N-
FT terminal"
FT /evidence="ECO:0000259|SMART:SM00893"
FT BINDING 229
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 254..255
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 268..272
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 285..292
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 306
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
SQ SEQUENCE 339 AA; 34518 MW; 53568EAAB78F782C CRC64;
MLRTGLVSAP TAAARLFSSA SARFASTLVI AEHDGAVLAA GTLNTITAAS KLGGNITVLV
AGASPKAVAD TVSKVKGVSK VVAVEHAGLK GLLTEAVTPV VIAAHKKTPF THIVAPATTF
GKTIIPNIAG KLDVAPISDI IGVKSEDTFV RTLYAGNAIA TVQSTDAVKV VSVRTTAFEP
AAATGGSAAV ESSSDGAVDQ TQSVFVGQEL VKSDRPELAA AQVIVSGGRA LKSKENFKIL
YDFADKIGAA VGATRAAVEA GYVSNDLQIG QTGKIVAPTL YMAIGISGAI QHLAGMKDSK
TIVAINKDPE APIFQVADFG LVEDLFKAVP ELSSKVKAK
//
