TABLE 2.

Nucleotide sequences of primers used for PCR amplification of the genes orfA, mdrL, qacA, and smr

Gene	Primera	Sequence (5′ to 3′)	Amplicon size (kb)
orfA	orf1	AAATGATTGCTCGTGAAGCT	0.467
	orf2	CGCACACCATTTTAATTCTG
mdrL	lltb1	AAATGGATAACAGCGGCAG	1.136
	lltb2	TGTAAGGTAAAATGTGCTGG
qacA	qac3	ACTACTGATATGATGACATCA	1.512
	qac4	AGTTATATCAAGTGATTTGGG
smr	smr1	ATAGCCATAAGTACTGAAGTT	0.291
	smr2	ACCGAAAATGTTTAACGAAAC

^aThese primers were formulated from sequences deposited in the EMBL/GenBank databases under accession no. X56628 for the qacA gene (18), M37889 for the smr gene (12), and AJ009627 for the orfA and mdrL genes (8).