UniProtKB - Q2TBV3 (ETFB_BOVIN)
Protein
Electron transfer flavoprotein subunit beta
Gene
ETFB
Organism
Bos taurus (Bovine)
Status
Functioni
Heterodimeric electron transfer flavoprotein that accepts electrons from several mitochondrial dehydrogenases, including acyl-CoA dehydrogenases, glutaryl-CoA and sarcosine dehydrogenase. It transfers the electrons to the main mitochondrial respiratory chain via ETF-ubiquinone oxidoreductase. Required for normal mitochondrial fatty acid oxidation and normal amino acid metabolism. ETFB binds an AMP molecule that probably has a purely structural role.By similarity
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 9 | AMP; via carbonyl oxygenBy similarity | 1 | |
Binding sitei | 66 | AMP; via amide nitrogen and carbonyl oxygenBy similarity | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 39 – 42 | AMPBy similarity | 4 | |
Nucleotide bindingi | 123 – 134 | AMPBy similarityAdd BLAST | 12 |
GO - Molecular functioni
- electron transfer activity Source: UniProtKB
- nucleotide binding Source: UniProtKB-KW
GO - Biological processi
- fatty acid beta-oxidation using acyl-CoA dehydrogenase Source: UniProtKB
Keywordsi
Biological process | Electron transport, Transport |
Ligand | Nucleotide-binding |
Enzyme and pathway databases
Reactomei | R-BTA-8876725, Protein methylation |
Names & Taxonomyi
Protein namesi | Recommended name: Electron transfer flavoprotein subunit betaCuratedShort name: Beta-ETFBy similarity |
Gene namesi | Name:ETFBBy similarity |
Organismi | Bos taurus (Bovine) |
Taxonomic identifieri | 9913 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Laurasiatheria › Artiodactyla › Ruminantia › Pecora › Bovidae › Bovinae › Bos |
Proteomesi |
|
Subcellular locationi
Mitochondrion
- Mitochondrion matrix 1 Publication
Mitochondrion
- mitochondrial matrix Source: UniProtKB
Keywords - Cellular componenti
MitochondrionPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Initiator methioninei | Removed1 Publication | |||
ChainiPRO_0000231524 | 2 – 255 | Electron transfer flavoprotein subunit betaAdd BLAST | 254 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 2 | N-acetylalanine1 Publication | 1 | |
Modified residuei | 200 | N6,N6,N6-trimethyllysine; by ETFBKMT; alternate1 Publication | 1 | |
Modified residuei | 200 | N6-acetyllysine; alternateBy similarity | 1 | |
Modified residuei | 200 | N6-methyllysine; alternateBy similarity | 1 | |
Modified residuei | 203 | N6,N6,N6-trimethyllysine; by ETFBKMT1 Publication | 1 | |
Modified residuei | 210 | N6-acetyllysine; alternateBy similarity | 1 | |
Modified residuei | 210 | N6-succinyllysine; alternateBy similarity | 1 | |
Modified residuei | 223 | PhosphoserineBy similarity | 1 | |
Modified residuei | 226 | PhosphoserineBy similarity | 1 | |
Modified residuei | 238 | N6-acetyllysineBy similarity | 1 | |
Modified residuei | 248 | N6-acetyllysine; alternateBy similarity | 1 | |
Modified residuei | 248 | N6-succinyllysine; alternateBy similarity | 1 |
Post-translational modificationi
Methylated (PubMed:25023281). Trimethylation at Lys-200 and Lys-203 may negatively regulate the activity in electron transfer from acyl-CoA dehydrogenases.By similarity1 Publication
Keywords - PTMi
Acetylation, Methylation, PhosphoproteinProteomic databases
PaxDbi | Q2TBV3 |
PeptideAtlasi | Q2TBV3 |
PRIDEi | Q2TBV3 |
PTM databases
iPTMneti | Q2TBV3 |
Expressioni
Gene expression databases
Bgeei | ENSBTAG00000020449, Expressed in heart and 18 other tissues |
Interactioni
Subunit structurei
Heterodimer composed of ETFA and ETFB.
Identified in a complex that contains ETFA, ETFB and ETFRF1.
Interacts with ACADM.
By similarityProtein-protein interaction databases
STRINGi | 9913.ENSBTAP00000027250 |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 183 – 205 | Recognition loopBy similarityAdd BLAST | 23 |
Domaini
The recognition loop recognizes a hydrophobic patch at the surface of interacting dehydrogenases and acts as a static anchor at the interface.By similarity
Sequence similaritiesi
Belongs to the ETF beta-subunit/FixA family.Curated
Phylogenomic databases
eggNOGi | KOG3180, Eukaryota |
HOGENOMi | CLU_060196_0_0_1 |
InParanoidi | Q2TBV3 |
OMAi | YNGGMVP |
OrthoDBi | 1092876at2759 |
TreeFami | TF314039 |
Family and domain databases
CDDi | cd01714, ETF_beta, 1 hit |
Gene3Di | 3.40.50.620, 1 hit |
InterProi | View protein in InterPro IPR000049, ET-Flavoprotein_bsu_CS IPR014730, ETF_a/b_N IPR012255, ETF_b IPR033948, ETF_beta_N IPR014729, Rossmann-like_a/b/a_fold |
PANTHERi | PTHR21294, PTHR21294, 1 hit |
Pfami | View protein in Pfam PF01012, ETF, 1 hit |
PIRSFi | PIRSF000090, Beta-ETF, 1 hit |
SMARTi | View protein in SMART SM00893, ETF, 1 hit |
PROSITEi | View protein in PROSITE PS01065, ETF_BETA, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q2TBV3-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MAELRALVAV KRVIDFAVKI RVKPDKTGVV TDGVKHSMNP FCEIAVEEAV
60 70 80 90 100
RLKEKKLVKE IIAVSCGPAQ CQETIRTALA MGADRGIHVE VPAAEANHLG
110 120 130 140 150
PLQVARVLAK LAEKEKVDLV LLGKQAIDDD CNQTGQMTAG FLDWPQGTFA
160 170 180 190 200
SQVTLEGDKI KVEREIDGGL ETLRLKLPAV VTADLRLNEP RYATLPNIMK
210 220 230 240 250
AKKKKIEVIK AGDLGVDLTS KLSVISVEDP PQRTAGVKVE TTEDLVAKLK
EIGRI
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BC109603 mRNA Translation: AAI09604.1 |
RefSeqi | NP_001033671.1, NM_001038582.1 |
Genome annotation databases
GeneIDi | 617210 |
KEGGi | bta:617210 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BC109603 mRNA Translation: AAI09604.1 |
RefSeqi | NP_001033671.1, NM_001038582.1 |
3D structure databases
SMRi | Q2TBV3 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 9913.ENSBTAP00000027250 |
PTM databases
iPTMneti | Q2TBV3 |
Proteomic databases
PaxDbi | Q2TBV3 |
PeptideAtlasi | Q2TBV3 |
PRIDEi | Q2TBV3 |
Genome annotation databases
GeneIDi | 617210 |
KEGGi | bta:617210 |
Organism-specific databases
CTDi | 2109 |
Phylogenomic databases
eggNOGi | KOG3180, Eukaryota |
HOGENOMi | CLU_060196_0_0_1 |
InParanoidi | Q2TBV3 |
OMAi | YNGGMVP |
OrthoDBi | 1092876at2759 |
TreeFami | TF314039 |
Enzyme and pathway databases
Reactomei | R-BTA-8876725, Protein methylation |
Gene expression databases
Bgeei | ENSBTAG00000020449, Expressed in heart and 18 other tissues |
Family and domain databases
CDDi | cd01714, ETF_beta, 1 hit |
Gene3Di | 3.40.50.620, 1 hit |
InterProi | View protein in InterPro IPR000049, ET-Flavoprotein_bsu_CS IPR014730, ETF_a/b_N IPR012255, ETF_b IPR033948, ETF_beta_N IPR014729, Rossmann-like_a/b/a_fold |
PANTHERi | PTHR21294, PTHR21294, 1 hit |
Pfami | View protein in Pfam PF01012, ETF, 1 hit |
PIRSFi | PIRSF000090, Beta-ETF, 1 hit |
SMARTi | View protein in SMART SM00893, ETF, 1 hit |
PROSITEi | View protein in PROSITE PS01065, ETF_BETA, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | ETFB_BOVIN | |
Accessioni | Q2TBV3Primary (citable) accession number: Q2TBV3 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 4, 2006 |
Last sequence update: | January 23, 2007 | |
Last modified: | December 2, 2020 | |
This is version 102 of the entry and version 3 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencing, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families