Query of the amino acid sequence of dnd cluster from S. lividance to the uncompleted genome sequence of me2155, a homologous gene with a 38% identity to dndA was found and was tentatively named mddl.

• 将变铅青链霉菌的dnd基因簇与mc~2155的基因组序列(未测完)进行同源比较后，发现mc~2155中存在dndA的同源基因(暂命名为mddl)，且二者在氨基酸水平上的同一性为38%25。