What is "eama"

EamA (named after the O-acetyl-serine/cysteine export gene in E. coli) is a protein domain found in a wide range of proteins including the Erwinia chrysanthemi PecM protein, which is involved in pectinase, cellulase and blue pigment regulation, the Salmonella typhimurium PagO protein (function unknown), and some members of the solute carrier family group 35 (SLC35) nucleoside-sugar transporters. Many members of this family have no known function and are predicted to be integral membrane proteins and many of the proteins contain two copies of the domain.