This family consists of several bacterial YopD like proteins. Virulent Yersinia species harbour a common plasmid that encodes essential virulence determinants (Yersinia outer proteins [Yops]), which are regulated by the extracellular stimuli Ca2+ and temperature. YopD is thought to be a possible transmembrane protein and contains an amphipathic alpha-helix in its carboxy terminus.
Lu S et al.(2020). "CDD/SPARCLE: the conserved domain database in 2020.",