Nugent M E, Datta N
J Gen Microbiol. 1980 Nov;121(1):259-62. doi: 10.1099/00221287-121-1-259.
A transposon, Tn733, encoding the gentamicin acetyltransferase AAC(3) was found on two gentamicin R plasmids of IncW at Hammersmith Hospital. Transposon TN733 has a molecular mass of 5.8 megadaltons and gives a characteristic 2.4 megadalton fragment on digestion with EcoRI. The appearance of gentamicin resistance on a transposon will increase the chances of spread of this gene.