Protein detoxification is the process by which proteins containing methylated arginine are broken down and removed from the body.Protein arginine N-methyltransferase 1 (PRMT1)Dimethylarginine dimethylaminohydrolase (DDAH)Asymmetric dimethylarginine (ADMA)N-methyl-L-arginine (L-NMMA) Protein detoxification is the process by which proteins containing methylated arginine are broken down and removed from the body.