S. Numata et al., Bdp, a new member of a family of DNA-binding proteins, associates with theretinoblastoma gene product, CANCER RES, 59(15), 1999, pp. 3741-3747
We have cloned a gene, BDP, encoding a protein with homology to the retinob
lastoma-binding proteins Rbp1 and Rbp2. It also has homology to DNA-binding
proteins such as Bright, a B-cell-specific hans-activator, and the Drosoph
ila melanogaster dead ringer gene product. Like MyoD, Bdp binds to the COOH
-terminal region of pRb through its conserved region and to hypophosphoryla
ted pRb. It also binds to the MAR of the immunoglobulin heavy-chain locus.
Thus Bdp may contribute to the transcriptional regulation of genes involved
in differentiation and tissue-specific expression.