Members of this protein family are FHA (forkhead-associated) domain-containing proteins that are part of type VI secretion loci in a considerable number of bacteria, most of which are known pathogens. Species include Pseudomonas aeruginosa PAO1, Aeromonas hydrophila, Yersinia pestis, Burkholderia mallei, etc. [Protein fate, Protein and peptide secretion and trafficking, Cellular processes, Pathogenesis]
Jiyao W et al.(2023). "The conserved domain database in 2023.",