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Entry version 102 (02 Dec 2020)
Sequence version 3 (23 Jan 2007)
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Protein

Electron transfer flavoprotein subunit beta

Gene

ETFB

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>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 keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei9AMP; via carbonyl oxygenBy similarity1
Binding sitei66AMP; via amide nitrogen and carbonyl oxygenBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi39 – 42AMPBy similarity4
Nucleotide bindingi123 – 134AMPBy similarityAdd BLAST12

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processElectron transport, Transport
LigandNucleotide-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-BTA-8876725, Protein methylation

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Electron transfer flavoprotein subunit betaCurated
Short name:
Beta-ETFBy similarity
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:ETFBBy similarity
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiBos taurus (Bovine)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9913 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaArtiodactylaRuminantiaPecoraBovidaeBovinaeBos
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000009136 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unplaced

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Mitochondrion

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved1 Publication
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00002315242 – 255Electron transfer flavoprotein subunit betaAdd BLAST254

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei2N-acetylalanine1 Publication1
Modified residuei200N6,N6,N6-trimethyllysine; by ETFBKMT; alternate1 Publication1
Modified residuei200N6-acetyllysine; alternateBy similarity1
Modified residuei200N6-methyllysine; alternateBy similarity1
Modified residuei203N6,N6,N6-trimethyllysine; by ETFBKMT1 Publication1
Modified residuei210N6-acetyllysine; alternateBy similarity1
Modified residuei210N6-succinyllysine; alternateBy similarity1
Modified residuei223PhosphoserineBy similarity1
Modified residuei226PhosphoserineBy similarity1
Modified residuei238N6-acetyllysineBy similarity1
Modified residuei248N6-acetyllysine; alternateBy similarity1
Modified residuei248N6-succinyllysine; alternateBy similarity1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>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, Phosphoprotein

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q2TBV3

PeptideAtlas

More...
PeptideAtlasi
Q2TBV3

PRoteomics IDEntifications database

More...
PRIDEi
Q2TBV3

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q2TBV3

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSBTAG00000020449, Expressed in heart and 18 other tissues

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Heterodimer composed of ETFA and ETFB.

Identified in a complex that contains ETFA, ETFB and ETFRF1.

Interacts with ACADM.

By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9913.ENSBTAP00000027250

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q2TBV3

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni183 – 205Recognition loopBy similarityAdd BLAST23

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>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

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the ETF beta-subunit/FixA family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3180, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_060196_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q2TBV3

Identification of Orthologs from Complete Genome Data

More...
OMAi
YNGGMVP

Database of Orthologous Groups

More...
OrthoDBi
1092876at2759

TreeFam database of animal gene trees

More...
TreeFami
TF314039

Family and domain databases

Conserved Domains Database

More...
CDDi
cd01714, ETF_beta, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.50.620, 1 hit

Integrated resource of protein families, domains and functional sites

More...
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

The PANTHER Classification System

More...
PANTHERi
PTHR21294, PTHR21294, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01012, ETF, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF000090, Beta-ETF, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00893, ETF, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS01065, ETF_BETA, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q2TBV3-1 [UniParc]FASTAAdd to basket
« Hide
        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
Length:255
Mass (Da):27,699
Last modified:January 23, 2007 - v3
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i0B96D6893DEF3C6A
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
BC109603 mRNA Translation: AAI09604.1

NCBI Reference Sequences

More...
RefSeqi
NP_001033671.1, NM_001038582.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
617210

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
bta:617210

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC109603 mRNA Translation: AAI09604.1
RefSeqiNP_001033671.1, NM_001038582.1

3D structure databases

SMRiQ2TBV3
ModBaseiSearch...

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000027250

PTM databases

iPTMnetiQ2TBV3

Proteomic databases

PaxDbiQ2TBV3
PeptideAtlasiQ2TBV3
PRIDEiQ2TBV3

Genome annotation databases

GeneIDi617210
KEGGibta:617210

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
2109

Phylogenomic databases

eggNOGiKOG3180, Eukaryota
HOGENOMiCLU_060196_0_0_1
InParanoidiQ2TBV3
OMAiYNGGMVP
OrthoDBi1092876at2759
TreeFamiTF314039

Enzyme and pathway databases

ReactomeiR-BTA-8876725, Protein methylation

Gene expression databases

BgeeiENSBTAG00000020449, Expressed in heart and 18 other tissues

Family and domain databases

CDDicd01714, ETF_beta, 1 hit
Gene3Di3.40.50.620, 1 hit
InterProiView 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
PANTHERiPTHR21294, PTHR21294, 1 hit
PfamiView protein in Pfam
PF01012, ETF, 1 hit
PIRSFiPIRSF000090, Beta-ETF, 1 hit
SMARTiView protein in SMART
SM00893, ETF, 1 hit
PROSITEiView protein in PROSITE
PS01065, ETF_BETA, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiETFB_BOVIN
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q2TBV3
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated 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.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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