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A Novel Bayesian Change-point Algorithm for Genome-wide Analysis of Diverse ChIPseq Data Types
Published on: December 10, 2012
BXMAS1 identifies a cluster of homologous genes differentially expressed in B cells
Y Nakayama1, S M Weissman, A L Bothwell
1Department of Genetics, Boyer Center for Molecular Medicine, Yale University School of Medicine, New Haven, CT 06536, USA. yasuhiro.nakayama@yale.edu
Abstract:
Characterization of genes activated by anti-IgM crosslinking of BL2 cells identified one gene, designated BXMAS1, that is predicted to be a novel cell surface receptor. The time course of activation indicates maximal transcriptional induction after 24 h. The predicted protein contains 977 aa residues, with a cytoplasmic domain containing 2 ITIM motifs. The ectodomain of the protein contains 6 repeats of characteristic 93 aa sequences which we have designated BXMAS1 domains. These domains correspond to 6 out of 8 Ig-like domains in BXMAS1. A search of the human genome revealed 5 additional closely linked homologous genes many of which contain BXMAS1 domains as well. Analysis of expression in cell lines and tissues suggests a general restriction of expression of these genes to B cells. These genes may be involved in B cell development and differentiation in peripheral lymphoid organs and may be useful markers of B cell stages.
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