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BRD4, a ubiquitously expressed nuclear phosphoprotein, is a member of BET protein family. It is a human homolog of mouse MCAP and consists of 2 N-terminal bromodomains, a central ET-domain, and several kinase-like motifs in its N-terminus. It is expressed as 2 isoforms; the longer variant has a C-terminus region with a praline and glutamine-rich domains. BRD4 is a chromatin-binding protein whose expression is induced in response to growth stimuli. BRD4 acts at different stages of the cell cycle by interacting with proteins including RFC and SPA-1 and regulates cell growth. It also has a role in regulating chromosomal dynamics during mitosis. BRD4 functions as a cellular target for E2 protein of papillomavirus.
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Protein Aliases: BRD4-NUT FUSION; bromodomain-containing 4; bromodomain-containing 5; Bromodomain-containing protein 4; chromosome-associated protein; fsh-like protein; MCAP; Mitotic chromosome-associated protein; Protein HUNK1
Gene Aliases: BRD4; Brd5; CAP; HUNK1; HUNKI; MCAP; WI-11513
UniProt ID: (Human) O60885, (Mouse) Q9ESU6
Entrez Gene ID: (Human) 23476, (Rat) 362844, (Mouse) 57261
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