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A0A4X1VVX4 · A0A4X1VVX4_PIG

  • Protein
    Transcription factor IIIB 50 kDa subunit
  • Gene
    BRF2
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    2/5

Function

function

General activator of RNA polymerase III transcription. Factor exclusively required for RNA polymerase III transcription of genes with promoter elements upstream of the initiation sites. Contributes to the regulation of gene expression; functions as activator in the absence of oxidative stress. Down-regulates expression of target genes in response to oxidative stress. Overexpression protects cells against apoptosis in response to oxidative stress.

GO annotations

all annotationsall molecular functionvirus receptor activitydna bindingrna bindingcytoskeletal motor activitycatalytic activitygtpase activitystructural molecule activitytransporter activitycytoskeletal protein bindinglipid bindingcyclase activityantioxidant activityoxidoreductase activitytransferase activityhydrolase activitylyase activityisomerase activityligase activityprotein tag activitycargo receptor activityhistone bindingprotein folding chaperonetranslation regulator activitynutrient reservoir activityreceptor ligand activitymolecular transducer activitymolecular adaptor activitytoxin activitycell adhesion mediator activitymolecular function regulator activityvirus coreceptor activitycatalytic activity, acting on a proteincatalytic activity, acting on dnacatalytic activity, acting on rnamolecular carrier activitytranscription regulator activitygeneral transcription initiation factor activitymolecular sensor activitymolecular sequestering activityatp-dependent activityother molecular functionall biological processmitotic cell cyclecytokinesiscytoplasmic translationimmune system processmuscle system processcirculatory system processrenal system processrespiratory system processcarbohydrate metabolic processgeneration of precursor metabolites and energydna replicationdna repairdna recombinationchromatin organizationdna-templated transcriptionregulation of dna-templated transcriptiontrna metabolic processprotein foldingprotein glycosylationamino acid metabolic processmodified amino acid metabolic processlipid metabolic processvitamin metabolic processsulfur compound metabolic processintracellular protein transportnucleocytoplasmic transportautophagyinflammatory responsemitochondrion organizationcytoskeleton organizationmicrotubule-based movementperoxisome organizationlysosome organizationchromosome segregationcell adhesionestablishment or maintenance of cell polarityprogrammed cell deathphotosynthesismrna metabolic processsnrna metabolic processvesicle-mediated transportreproductive processdigestive system processsignalingcell differentiationprotein catabolic processextracellular matrix organizationregulatory ncrna-mediated gene silencingtelomere organizationcell junction organizationwound healingribosome biogenesiscilium organizationanatomical structure developmentcell motilitynervous system processendocrine processprotein maturationtransmembrane transportnucleobase-containing small molecule metabolic processhepaticobiliary system processmembrane organizationprotein-containing complex assemblycell wall organization or biogenesisnitrogen cycle metabolic processprotein localization to plasma membranedefense response to other organismdetoxificationmeiotic nuclear divisionmitotic nuclear divisionmitochondrial gene expressioncarbohydrate derivative metabolic processother biological processall cellular componentnuclear chromosomeextracellular regionextracellular spacecell wallnucleusnuclear envelopenucleoplasmchromosomenucleolusmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuslipid dropletmicrotubule organizing centercytosolribosomecytoskeletonplasma membraneciliumplastidthylakoidexternal encapsulating structureextracellular matrixcytoplasmic vesicleorganelleother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentnucleus
Biological Processtranscription preinitiation complex assembly

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Transcription factor IIIB 50 kDa subunit
  • Alternative names
    • B-related factor 2

Gene names

    • Name
      BRF2

Organism names

  • Taxonomic identifier
  • Organism
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Mammalia > Eutheria > Laurasiatheria > Artiodactyla > Suina > Suidae > Sus

Accessions

  • Primary accession
    A0A4X1VVX4

Proteomes

Subcellular Location

Keywords

  • Cellular component

Interaction

Subunit

Component of TFIIIB complexes. The TFIIIB complex has two activities, alpha and beta. The TFIIIB-alpha activity complex is composed of TBP, BDP1, and a complex containing both BRF2 and at least four stably associated proteins; this complex inhibits the transcription by pol III via its phosphorylation by CK2; YY1 facilitates the TFIIIB-alpha complex formation. Interacts with TBP; this interaction promotes recruitment of BRF2 to TATA box-containing promoters. Interacts with TBP and the BURE sequence (GC-rich sequence downstream from the TATA box) to form a strong ternary complex which is joined by BDP1; this ternary complex stimulates pol III transcription. Forms a trimeric complex composed of TBP, BRF2 and mini-SNAPc complex (SNAP43, SNAP50, and the N-terminal third of SNAP190) on the promoter. Assembly of the TBP-BRF2 complex is stimulated by SNAP190. Interacts with MAF1 and SNAPC4.

Family & Domains

Features

Showing features for domain, compositional bias, region.

Type
IDPosition(s)Description
Domain2-36TFIIB-type
Compositional bias312-330Basic and acidic residues
Region312-417Disordered
Compositional bias350-370Pro residues
Compositional bias374-390Polar residues

Sequence similarities

Belongs to the TFIIB family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    417
  • Mass (Da)
    46,129
  • Last updated
    2019-09-18 v1
  • MD5 Checksum
    67B3AEF56FF92C2EA2D5EE59A958A50C
MPGRGRCPDCGSTELVEDSHYSQSQLVCSDCGCVVTEGVLTTTFSDEGNLREVTYSRSTGENEQVSRSQQRGLRRVRDLCRVLQLPPTFEDTAVAYYQQAYQHSGIRAARLQKKEVLVGCCVLITCRQRNWPLTMGTICTLIYADLDVFSGTYMQMVKLLGLDVPSLCLADLVKTYCSSFKLFQASPSVPAKYVEDKEKMLSRTLQLVELADETWLVTGRHPLPVVTAATFLAWQSLQPSDRLSCSLARFCKLANVDLPYPAASRLQELLAVLLRMAGQLAWLQVLKLDKRSVVKHIGDLLQHRHTLVRKAFRDGTSETDEREKELPGQGQGKEEAGSSSVDLPEGKRPASPAPLLPPCMLKPPKRICPTPPVSTVTGDENISDSEIEQYLRTPQEVRDFQKAQAAGQATTSGPNPP

Features

Showing features for compositional bias.

TypeIDPosition(s)Description
Compositional bias312-330Basic and acidic residues
Compositional bias350-370Pro residues
Compositional bias374-390Polar residues

Genome annotation databases

Similar Proteins

Disclaimer

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