The possible roles of B-cell novel protein-1 (BCNP1) in cellular signalling pathways and in cancer

Patel, S. J., Trivedi, G. L., Darie, C. C., Clarkson, B. D. (March 2017) The possible roles of B-cell novel protein-1 (BCNP1) in cellular signalling pathways and in cancer. J Cell Mol Med, 21 (3). pp. 456-466. ISSN 1582-4934 (Electronic)1582-1838 (Linking)

DOI: 10.1111/jcmm.12989


B-cell novel protein-1 (BCNP1) or Family member of 129C (FAM129C) was identified as a B-cell-specific plasma-membrane protein. Bioinformatics analysis predicted that BCNP1 might be heavily phosphorylated. The BCNP1 protein contains a pleckstrin homology (PH) domain, two proline-rich (PR) regions and a Leucine Zipper (LZ) domain suggesting that it may be involved in protein-protein interactions. Using The Cancer Genome Atlas (TCGA) data sets, we investigated the correlation of alteration of the BCNP1 copy-number changes and mutations in several cancer types. We also investigated the function of BCNP1 in cellular signalling pathways. We found that BCNP1 is highly altered in some types of cancers and that BCNP1 copy-number changes and mutations co-occur with other molecular alteration events for TP53 (tumour protein P53), PIK3CA (Phosphatidylinositol-4,5-Bisphosphate 3-Kinase, Catalytic Subunit Alpha), MAPK1 (mitogen-activated protein kinase-1; ERK: extracellular signal regulated kinase), KRAS (Kirsten rat sarcoma viral oncogene homolog) and AKT2 (V-Akt Murine Thymoma Viral Oncogene Homolog 2). We also found that PI3K (Phoshoinositide 3-kinase) inhibition and p38 MAPK (p38 mitogen-activated protein kinase) activation leads to reduction in phosphorylation of BCNP1 at serine residues, suggesting that BCNP1 phosphorylation is PI3K and p38MAPK dependent and that it might be involved in cancer. Its degradation depends on a proteasome-mediated pathway.

Item Type: Paper
Uncontrolled Keywords: B-cell novel protein-1 bioinformatics family member of 129C p38 MAPK phoshoinositide 3-kinase
Subjects: bioinformatics
diseases & disorders > cancer
organs, tissues, organelles, cell types and functions > cell types and functions > cell functions > cell signaling
CSHL Authors:
Communities: CSHL labs > Zhang L. lab
Depositing User: Matt Covey
Date: March 2017
Date Deposited: 07 Oct 2016 15:52
Last Modified: 20 Apr 2017 20:40
PMCID: PMC5323820
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