This family includes LamB. The lam locus of Aspergillus nidulans consists of two divergently transcribed genes, lamA and lamB, involved in the utilisation of lactams such as 2-pyrrolidinone. Both genes are under the control of the positive regulatory gene amdR and are subject to carbon and nitrogen metabolite repression [1]. The exact molecular function of the proteins in this family is unknown.

1: Molecular characterization of the lam locus and sequences involved in regulation by the AmdR protein of Aspergillus nidulans. Richardson IB, Katz ME, Hynes MJ; Mol Cell Biol 1992;12:337-346. PMID:1729609