BCL3 Antibody – Rabbit Polyclonal

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 co-activator 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. [provided by RefSeq, Jul 2008]

Function: Contributes to the regulation of transcriptional activation of NF-kappa-B target genes. In the cytoplasm, inhibits the nuclear translocation of the NF-kappa-B p50 subunit. In the nucleus, acts as transcriptional activator that promotes transcription of NF-kappa-B target genes. Contributes to the regulation of cell proliferation

By similarity. Ref.4

Subunit structure: Component of a complex consisting of the NF-kappa-B p52-p52 homodimer and BCL3. Component of a complex consisting of the NF-kappa-B p50-p50 homodimer and BCL3. Interacts with N4BP2, COPS5 and PIR. Interacts with CYLD

By similarity. Ref.4 Ref.5 Ref.6 Ref.7

Subcellular location: Nucleus. Cytoplasm

By similarity. Cytoplasm › perinuclear region

By similarity. Note: Ubiquitination via 'Lys-63'-linked ubiquitin chains is required for nuclear accumulation

By similarity.

Post-translational modification: Polyubiquitinated. Ubiquitination via 'Lys-63'-linked ubiquitin chains is required for nuclear accumulation. Deubiquitinated by CYLD, which acts on 'Lys-63'-linked ubiquitin chains. Deubiquitination by CYLD prevents nuclear accumulation

By similarity.Activated by phosphorylation.

Involvement in disease: A chromosomal aberration involving BCL3 may be a cause of B-cell chronic lymphocytic leukemia (B-CLL). Translocation t(14;19)(q32;q13.1) with immunoglobulin gene regions.

Sequence similarities: Contains 7 ANK repeats.

Caution: It is uncertain whether Met-1 or Met-9 is the initiator.

Sequence caution: The sequence AAA51815.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended.The sequence AAA51816.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended.The sequence AAH64993.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended.