This family consists of several bacterial Arylsulfotransferase proteins. Arylsulfotransferase (ASST) transfers a sulfate group from phenolic sulfate esters to a phenolic acceptor substrate [1]. This domain has an Ig-like fold.

1: Cloning and sequencing of the Klebsiella K-36 astA gene, encoding an arylsulfate sulfotransferase. Baek MC, Kim SK, Kim DH, Kim BK, Choi EC; Microbiol Immunol 1996;40:531-537. PMID:8887346