Rabbit anti-Human BCR Polyclonal Antibody

Uniprot Id

P11274

Target Species

Human

Target Name

BCR

Target Full Name

Breakpoint cluster region protein

Target Function

Protein with a unique structure having two opposing regulatory activities toward small GTP-binding proteins. The C-terminus is a GTPase-activating protein (GAP) domain which stimulates GTP hydrolysis by RAC1, RAC2 and CDC42. Accelerates the intrinsic rate of GTP hydrolysis of RAC1 or CDC42, leading to down-regulation of the active GTP-bound form. The central Dbl homology (DH) domain functions as guanine nucleotide exchange factor (GEF) that modulates the GTPases CDC42, RHOA and RAC1. Promotes the conversion of CDC42, RHOA and RAC1 from the GDP-bound to the GTP-bound form. The amino terminus contains an intrinsic kinase activity. Functions as an important negative regulator of neuronal RAC1 activity. Regulates macrophage functions such as CSF1-directed motility and phagocytosis through the modulation of RAC1 activity. Plays a major role as a RHOA GEF in keratinocytes being involved in focal adhesion formation and keratinocyte differentiation.

Target Involvement

Leukemia, chronic myeloid (CML)

Target Subcellular Location

Cell junction, synapse, postsynaptic density. Cell projection, dendritic spine. Cell projection, axon. Cell junction, synapse.

Target Synonyms

ALL; bcr; BCR/ABL FUSION GENE, INCLUDED; BCR/FGFR1 chimera protein; BCR/FGFR1 FUSION GENE, INCLUDED; BCR/PDGFRA FUSION GENE, INCLUDED; BCR_HUMAN; BCR1; Breakpoint cluster region; Breakpoint cluster region protein; CML; D22S11; D22S662; FGFR1/BCR chimera protein; PHL; Renal carcinoma antigen NY-REN-26

Target Background

A reciprocal translocation between chromosomes 22 and 9 produces the Philadelphia chromosome, which is often found in patients with chronic myelogenous leukemia. The chromosome 22 breakpoint for this translocation is located within the BCR gene. The translocation produces a fusion protein which is encoded by sequence from both BCR and ABL, the gene at the chromosome 9 breakpoint. Although the BCR-ABL fusion protein has been extensively studied, the function of the normal BCR gene product is not clear. The unregulated tyrosine kinase activity of BCR-ABL1 contributes to the immortality of leukaemic cells. The BCR protein has serine/threonine kinase activity and is a GTPase-activating protein for p21rac and other kinases. Two transcript variants encoding different isoforms have been found for this gene.