SMT — Brassica juncea

Summary

BJUA09G12810S (symbol SMT, preferred name BjHMT2) on Indian mustard chromosome A09 encodes a homocysteine S-methyltransferase with selenocysteine methyltransferase activity, S-adenosylmethionine-homocysteine S-methyltransferase activity, and S-methylmethionine-homocysteine S-methyltransferase activity, and it binds zinc. The protein localises to the cytosol and cytoplasm. This gene is associated with the response to selenium ion, methionine biosynthesis, the S-methylmethionine cycle, and amino acid metabolism. It has been linked to chlorophyll content and plant height, and to seed methionine content. Related genes in other species are linked to methionine synthesis and increased seed methionine content.