PRMT5/MEP50 complex of human PRMT5 (GenBank Accession No. NM_006109), amino-acids 2-637(end), with N-terminal FLAG-Avi tag, MW=73 kDa, and human MEP50 (GenBank Accession No. NM_024102) with N-terminal His-Tag, amino-acids 2-342(end), MW=38 kDa, coexpressed in HEK293 cells and enzymatically biotin-labeled using Avi-tag technology.
host species: mammalian (human)
Host species: mammalian (human)
Host cell line: HEK293
Background
Three types of arginine methylation exist in mammalian cells: monomethylarginine (MMA), asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA). Type I PRMTs ((CARM1, PRMT1, PRMT2, PRMT3, PRMT6, and PRMT8) catalyze ADMA, while type II PRMTs (e.g. PRMTs 5 and 7) catalyze SDMA. Type II PRMTs are found to be strongly implicated in diseases like cancer. For example, PRMT5 plays a role in the repression of certain tumor suppressor genes such as RB tumor suppressors while PRMT7 overexpression is observed in breast cancer