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BCAS3

Breast carcinoma amplified sequence 3, also known as BCAS3, is a protein which in humans is encoded by the BCAS3 gene.[1][2] BCAS3 is a gene that is amplified and overexpressed in breast cancer cells.[2]

Function

Function

The BCAS3 gene is regulated by estrogen receptor alpha (ER-α).[3] The PELP1 protein acts as a transcriptional coactivator of estrogen receptor induced BCAS3 gene expression. In addition BCAS3 possesses histone acetyltransferase activity and itself appears to act as a coactivator of ER-α.[4] Furthermore, BCAS3 requires PELP1 to function as a coactivator in ER-α. Hence BCAS3 apparently is involved in a positive feedback loop leading to ER-α mediated signal amplification.[4]

References

References

  1. “Entrez Gene: BCAS3 breast carcinoma amplified sequence 3”.
  2. 2.0 2.1 Bärlund M, Monni O, Weaver JD, Kauraniemi P, Sauter G, Heiskanen M, Kallioniemi OP, Kallioniemi A (December 2002). “Cloning of BCAS3 (17q23) and BCAS4 (20q13) genes that undergo amplification, overexpression, and fusion in breast cancer”. Genes Chromosomes Cancer. 35 (4): 311–7. doi:10.1002/gcc.10121. PMID 12378525.
  3. Gururaj AE, Singh RR, Rayala SK, Holm C, den Hollander P, Zhang H, Balasenthil S, Talukder AH, Landberg G, Kumar R (April 2006). “MTA1, a transcriptional activator of breast cancer amplified sequence 3”. Proc. Natl. Acad. Sci. U.S.A. 103 (17): 6670–5. doi:10.1073/pnas.0601989103. PMC 1458939. PMID 16617102.
  4. 4.0 4.1 Gururaj AE, Peng S, Vadlamudi RK, Kumar R (August 2007). “Estrogen induces expression of BCAS3, a novel estrogen receptor-alpha coactivator, through proline-, glutamic acid-, and leucine-rich protein-1 (PELP1)”. Mol. Endocrinol. 21 (8): 1847–60. doi:10.1210/me.2006-0514. PMID 17505058.
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Further reading

Further reading



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