Fig. 1From: Emergence of colistin resistance in multidrug-resistant Klebsiella pneumoniae and Escherichia coli strains isolated from cancer patientsSequence analysis of mgrB. A chromatogram of wild-type (a) and mutated mgrB (b). Isolate 35 harbors a C–A transition that mutates proline to tyrosine at position 178 (b). c mgrB mutations in K. pneumoniae isolate 35, with arrows indicating nucleotide changesBack to article page