This domain family is found in bacteria, and is typically between 258 and 271 amino acids in length. There are two conserved sequence motifs: DGT and DGWST. This family is the N-terminal region of bacterial virulence factor lipase. The N-terminal region contains a potential signalling sequence.

1: Molecular analysis and expression of the extracellular lipase of Aeromonas hydrophila MCC-2. Chuang YC, Chiou SF, Su JH, Wu ML, Chang MC; Microbiology. 1997;143:803-812. PMID:9084164