Description
Product Characteristics: BORIS (Brother of Regulator of Imprinted Sites) / CTCFL (CTCF-like) is a zinc-finger DNA binding protein that acts as a chromatin insulator and a paralog of the CTCF protein. Normally, BORIS / CTCFL is expressed only in primary spermatocytes and is thought to play a role in resetting DNA methylation marks during the differentiation of male germ cells. BORIS / CTCFL is also expressed in many cancers and may serve a pro-proliferative function.
Target Information: CCCTC-binding factor (CTCF), an 11-zinc-finger factor involved in gene regulation, utilizes different zinc fingers to bind varying DNA target sites. CTCF forms methylation-sensitive insulators that regulate X-chromosome inactivation. This gene is a paralog of CTCF and appears to be expressed primarily in the cytoplasm of spermatocytes, unlike CTCF which is expressed primarily in the nucleus of somatic cells. CTCF and the protein encoded by this gene are normally expressed in a mutually exclusive pattern that correlates with resetting of methylation marks during male germ cell differentiation. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2012]