Anisomycin (2-p-methoxyphenylmethyl-3-acetoxy-4-hydroxypyrrolidine) is an antibiotic isolated from cultures of various Streptomyces. Anisomycin is a potent, structurally specific, and reversible inhibitor of protein biosynthesis in certain yeast and mammalian cells. The inhibition occurs subsequent to the formation of aminoacyl transfer ribonucleic acid but prior to the release of polypeptides from the polyribosome. Anisomycin has unspecified effects that can produce temporary amnesia for a reactivated memory and they also could be responsible for any permanent effects that anisomycin produces. Anisomycin is known to cause apoptosis by activation of MAPK cascade.