Biology:BCL3

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

B-cell lymphoma 3-encoded protein is a protein that in humans is encoded by the BCL3 gene.[1][2]

This gene is a proto-oncogene candidate. It is identified by its translocation into the immunoglobulin alpha-locus in some cases of B-cell leukemia. The protein encoded by this gene contains seven ankyrin repeats, which are most closely related to those found in I kappa B proteins. This protein functions as a transcriptional coactivator that activates through its association with NF-kappa B homodimers. The expression of this gene can be induced by NF-kappa B, which forms a part of the autoregulatory loop that controls the nuclear residence of p50 NF-kappa B.[3]

Like BCL2, BCL5, BCL6, BCL7A, BCL9, and BCL10, it has clinical significance in lymphoma.

Interactions

BCL3 has been shown to interact with:


Clinical significance

Genetic variations in BCL3 gene have been associated with late-onset Alzheimer's disease (LOAD) and chronic lymphocytic leukemia. β-amyloid accumulation in neurons of Alzheimer's patients results in activation of NF-κB, which induces BCL3 expression.[12] Increased expression of BCL3 has been observed in the brains of patients with LOAD.[13]

References

  1. "Candidate proto-oncogene bcl-3 encodes a subunit-specific inhibitor of transcription factor NF-kappa B". Nature 358 (6387): 597–599. August 1992. doi:10.1038/358597a0. PMID 1501714. Bibcode1992Natur.358..597W. 
  2. "The candidate proto-oncogene bcl-3 is related to genes implicated in cell lineage determination and cell cycle control". Cell 60 (6): 991–997. March 1990. doi:10.1016/0092-8674(90)90347-H. PMID 2180580. 
  3. "Entrez Gene: BCL3 B-cell CLL/lymphoma 3". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=602. 
  4. 4.0 4.1 4.2 4.3 "The Bcl-3 oncoprotein acts as a bridging factor between NF-kappaB/Rel and nuclear co-regulators". Oncogene 18 (22): 3316–3323. June 1999. doi:10.1038/sj.onc.1202717. PMID 10362352. 
  5. 5.0 5.1 5.2 "Bcl3, an IkappaB protein, stimulates activating protein-1 transactivation and cellular proliferation". The Journal of Biological Chemistry 274 (40): 28491–28496. October 1999. doi:10.1074/jbc.274.40.28491. PMID 10497212. 
  6. "Molecular Interaction Database". http://mint.bio.uniroma2.it/mint/Welcome.do. 
  7. 7.0 7.1 "Activation of nuclear factor-kappaB p50 homodimer/Bcl-3 complexes in nasopharyngeal carcinoma". Cancer Research 63 (23): 8293–8301. December 2003. PMID 14678988. 
  8. "The NF-kappa B precursor p105 and the proto-oncogene product Bcl-3 are I kappa B molecules and control nuclear translocation of NF-kappa B". The EMBO Journal 12 (1): 213–222. January 1993. doi:10.1002/j.1460-2075.1993.tb05647.x. PMID 8428580. 
  9. "NF-kappaB p105 is a target of IkappaB kinases and controls signal induction of Bcl-3-p50 complexes". The EMBO Journal 18 (17): 4766–4778. September 1999. doi:10.1093/emboj/18.17.4766. PMID 10469655. 
  10. "The oncoprotein Bcl-3 directly transactivates through kappa B motifs via association with DNA-binding p50B homodimers". Cell 72 (5): 729–739. March 1993. doi:10.1016/0092-8674(93)90401-b. PMID 8453667. 
  11. "Bcl3, an IkappaB protein, as a novel transcription coactivator of the retinoid X receptor". The Journal of Biological Chemistry 273 (47): 30933–30938. November 1998. doi:10.1074/jbc.273.47.30933. PMID 9812988. 
  12. "Association analysis of rare variants near the APOE region with CSF and neuroimaging biomarkers of Alzheimer's disease". BMC Medical Genomics 10 (Suppl 1): 29. May 2017. doi:10.1186/s12920-017-0267-0. PMID 28589856. 
  13. "A genome-wide association study with 1,126,563 individuals identifies new risk loci for Alzheimer's disease". Nature Genetics 53 (9): 1276–1282. September 2021. doi:10.1038/s41588-021-00921-z. ISSN 1061-4036. PMID 34493870. https://research.vu.nl/en/publications/61f01aa9-6dc7-4213-be2a-d3fe622db488. 

Further reading

External links