[APH(3')-II phosphotransferase determination using protein transfer (western blotting)]. / Estudio de la fosfotransferasa APH(3')-II mediante trasferencia de proteínas ("western blotting").

ABSTRACT

The APH(3')-II aminoglycoside-phosphotransferase has been studied by protein blotting. This technique allowed the detection of the enzyme in the crude extracts from clinical isolates of Enterobacteriaceae, and the molecular weight determination of the APH(3')-II. The obtained molecular weight of 25,000 is coincident with the previously reported value determined by a different method. These results demonstrate that this technique is useful for the study of aminoglycoside-modifying enzymes.