PRMT1 belongs to the family of protein arginine methyl transferases (PRMT). These enzymes transfer the methyl group from S-adenosyl-L methionine to the guanidino nitrogen atoms of an arginine residue. PRMTs are divided in two major types, I and II. It is also known as HRMT1L2 and IR1B4. PRMT1 was isolated through its interaction with BTG1 and TIS2, proteins that are important in cell quiescence. It is a 361 amino acids protein; its splicing variants differ at the N-terminus, giving rise to three isoforms (variants 1, 2 and 3).
synthetic peptide corresponding to amino acids 326-341 of mouse PRMT1, conjugated to KLH via an N-terminal added cysteine residue. The sequence is conserved in human, and differs by one amino acid from the rat sequence.
Anti-PRMT1 antibody produced in rabbit has been used in immunoblotting.
PRMT type 1 and 2 catalyze the formation of monomethylarginine, but differs in that Type I (including PRMT1, 3, 4, and 6) catalyzes the formation of asymmetric dimethylarginine, whereas type II (PRMT5) catalyzes the formation of symmetric dimethylarginine.
Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.
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