Examples of FosA enzymes and pathogenic bacteria which express them.

FosA sub-type	Gene	Bacterial expression	Ref.
FosA2	fosA2	E. cloacae	232
FosA3	fosA3	E. coli	233
FosA4	fosA4	E. coli, K. pneumoniae, S. enterica, Shigella flexneri	234
FosA5	fosA5	E. coli, K. pneumoniae	235
FosA6	fosA6	E. coli, Klebsiella aerogenes, S. enterica	236
FosA7	fosA7	S. enterica	237