Positive Samples: HeLa, 293T, Jurkat, C6 Immunogen sequence: DEIEIDFETL KPSTLRELER YVTSCLRKKR KPQAEKVDVI AGSSKMKGFS SSESESSSES SSSDSEDSET GPA. BRD4, a ubiquitously expressed nuclear phosphoprotein, is a member of BET protein family. It is a human homolog