ID T1FNU1_HELRO Unreviewed; 342 AA.
AC T1FNU1;
DT 16-OCT-2013, integrated into UniProtKB/TrEMBL.
DT 16-OCT-2013, sequence version 1.
DT 27-MAR-2024, entry version 49.
DE RecName: Full=Electron transfer flavoprotein subunit alpha {ECO:0000256|PIRNR:PIRNR000089};
DE Short=Alpha-ETF {ECO:0000256|PIRNR:PIRNR000089};
GN Name=20210488 {ECO:0000313|EnsemblMetazoa:HelroP186223};
GN ORFNames=HELRODRAFT_186223 {ECO:0000313|EMBL:ESN90078.1};
OS Helobdella robusta (Californian leech).
OC Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Annelida; Clitellata;
OC Hirudinea; Rhynchobdellida; Glossiphoniidae; Helobdella.
OX NCBI_TaxID=6412 {ECO:0000313|EnsemblMetazoa:HelroP186223, ECO:0000313|Proteomes:UP000015101};
RN [1] {ECO:0000313|Proteomes:UP000015101}
RP NUCLEOTIDE SEQUENCE.
RA Hellsten U., Grimwood J., Chapman J.A., Shapiro H., Aerts A., Otillar R.P.,
RA Terry A.Y., Boore J.L., Simakov O., Marletaz F., Cho S.-J.,
RA Edsinger-Gonzales E., Havlak P., Kuo D.-H., Larsson T., Lv J., Arendt D.,
RA Savage R., Osoegawa K., de Jong P., Lindberg D.R., Seaver E.C.,
RA Weisblat D.A., Putnam N.H., Grigoriev I.V., Rokhsar D.S.;
RL Submitted (DEC-2012) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ESN90078.1, ECO:0000313|Proteomes:UP000015101}
RP NUCLEOTIDE SEQUENCE.
RX PubMed=23254933; DOI=10.1038/nature11696;
RA Simakov O., Marletaz F., Cho S.J., Edsinger-Gonzales E., Havlak P.,
RA Hellsten U., Kuo D.H., Larsson T., Lv J., Arendt D., Savage R.,
RA Osoegawa K., de Jong P., Grimwood J., Chapman J.A., Shapiro H., Aerts A.,
RA Otillar R.P., Terry A.Y., Boore J.L., Grigoriev I.V., Lindberg D.R.,
RA Seaver E.C., Weisblat D.A., Putnam N.H., Rokhsar D.S.;
RT "Insights into bilaterian evolution from three spiralian genomes.";
RL Nature 493:526-531(2013).
RN [3] {ECO:0000313|EnsemblMetazoa:HelroP186223}
RP IDENTIFICATION.
RG EnsemblMetazoa;
RL Submitted (JUN-2015) 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|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; AMQM01008440; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; KB097778; ESN90078.1; -; Genomic_DNA.
DR RefSeq; XP_009031843.1; XM_009033595.1.
DR AlphaFoldDB; T1FNU1; -.
DR STRING; 6412.T1FNU1; -.
DR EnsemblMetazoa; HelroT186223; HelroP186223; HelroG186223.
DR GeneID; 20210488; -.
DR KEGG; hro:HELRODRAFT_186223; -.
DR CTD; 20210488; -.
DR eggNOG; KOG3954; Eukaryota.
DR HOGENOM; CLU_034178_0_0_1; -.
DR InParanoid; T1FNU1; -.
DR OMA; WRPYAEQ; -.
DR OrthoDB; 5481222at2759; -.
DR Proteomes; UP000015101; Unassembled WGS sequence.
DR GO; GO:0005759; C:mitochondrial matrix; IEA:UniProtKB-SubCell.
DR GO; GO:0005739; C:mitochondrion; IBA:GO_Central.
DR GO; GO:0009055; F:electron transfer activity; IBA:GO_Central.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IBA:GO_Central.
DR GO; GO:0033539; P:fatty acid beta-oxidation using acyl-CoA dehydrogenase; IBA:GO_Central.
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:UP000015101};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|PIRNR:PIRNR000089}.
FT DOMAIN 29..212
FT /note="Electron transfer flavoprotein alpha/beta-subunit N-
FT terminal"
FT /evidence="ECO:0000259|SMART:SM00893"
FT BINDING 232
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 258..259
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 272..276
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 289..296
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
FT BINDING 310
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000089-1"
SQ SEQUENCE 342 AA; 36356 MW; 8B1083ACD7A31D90 CRC64;
MAMSNLLLKS KFFSKNSIAR LCLQRFKSSL VVVQHDNVKF APATLNAVTA ASKLGEVTCL
VAGHQCNQAA TEVSKITNVK KVLLADSEIF KGFLAENMTN LVLKIQKQSN FTNIISSADS
FGRNLIPRIA AMLDCASISD VTGIKSEDTF VRTTYAGNAI QTVRSKDNIK LITVRGTSFE
PSKLDGGANV PIEKVEVDGS EDAKLSEFVS QDIHKSDRPE LGSAKVVVSG GRGMKSGENF
NMLYDLADAL GGGAVGATRA AVDAGFVPND LQIGQTGKIV APALYIAVGI SGAIQHLAGM
KDSKVIVAIN KDPEAPIFQV ADYGIVADLF KVVPEMTSML KK
//
