>3ktb_B mol:protein length:106 Arsenical resistance operon trans-acting repressorSNAMKKIEIFDPAMCCPTGLCGTNINPELMRIAVVIESLKKQGIIVTRHNLRDEPQVYVSNKTVNDFLQKHGADALPITLVDGEIAVSQTYPTTKQMSEWTGVNLD