Abstract
trans-3-Methylthioacrylamide (3-MTAA-NH2) was isolated as colorless needles from the culture broth of Streptomyces sioyaensis, a siomycin-producer. This substance is considered to be not only a new metabolite from methionine but also a new substance. The isolation and identification of 3-MTAA-NH2, as well as the cultural conditions for production, were investigated. A variety of other Streptomyces also produced 3-MTAA-NH2 from methionine.