The members of this family are probably allpyridoxal-phosphate-dependent aminotransferase enzymes with avariety of molecular functions. The family includes StsASwiss:P72454, StsC Swiss:P77952 and StsS [1]. Theaminotransferase activity was demonstrated for purified StsCprotein as the L-glutamine:scyllo-inosose aminotransferaseEC:2.6.1.50, which catalyses the first amino transfer in thebiosynthesis of the streptidine subunit of streptomycin [1]. DegT/DnrJ/EryC1/StrS aminotransferase family DegT_DnrJ_EryC1