TCEB3

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Identifiers
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External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
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RefSeq (mRNA)

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RefSeq (protein)

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Transcription elongation factor B polypeptide 3 is a protein that in humans is encoded by the TCEB3 gene.[1][2][3]

This gene encodes the protein elongin A, which is a subunit of the transcription factor B (SIII) complex. The SIII complex is composed of elongins A/A2, B and C. It activates elongation by RNA polymerase II by suppressing transient pausing of the polymerase at many sites within transcription units. Elongin A functions as the transcriptionally active component of the SIII complex, whereas elongins B and C are regulatory subunits. Elongin A2 is specifically expressed in the testis, and capable of forming a stable complex with elongins B and C. The von Hippel-Lindau tumor suppressor protein binds to elongins B and C, and thereby inhibits transcription elongation.[3]

References

  1. Aso T, Mokady N, Haque D, Conaway RC, Conaway JW (Mar 1996). "Assignment of a human gene encoding the 110-kDa subunit of general transcription factor elongin (SIII) to chromosome 1p36.1". Genomics. 30 (2): 393–4. PMID 8586449.
  2. Aso T, Lane WS, Conaway JW, Conaway RC (Oct 1995). "Elongin (SIII): a multisubunit regulator of elongation by RNA polymerase II". Science. 269 (5229): 1439–43. doi:10.1126/science.7660129. PMID 7660129.
  3. 3.0 3.1 "Entrez Gene: TCEB3 transcription elongation factor B (SIII), polypeptide 3 (110kDa, elongin A)".

Further reading




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