In some bacteria a gene fusion event leads to expression of a CMD with a hydrolase involved in the same pathway In these bifunctional proteins (e.g. O67982) CMD represents the C-terminal domain, Abhydrolase_1 represents the N-terminal domain wb0004. An identical sequence found in Plasmid R100 Trembl Q7AK60 yiea protein. Q27TG2_ECOLI quite different. There are more than 1000 strains. Other Uniprot entries and list of strains can be found with the link: Other strains.