Table 1. Restriction sites and sequences of primers used for cloning.

Gene	Forward		Reverse
	Restriction Site	Sequence	Restriction Site	Sequence
pOX-hENT1	SalI	5′-GCACGTCGACCAATAATGACAACCAGTCAC-3′	XbaI	5′-CGTGTTCTAGATCACACAATTGCCCG-3′
pOX-hENT2	SalI	5′-GATATAGTCGACCAATAATGGCGCGAGGAGAC-3′	XbaI	5′-CTATCTCTAGATCAGAGCAGCGCCTTGAAGAG-3′
pOX-hCNT2	HindIII	5′-GCCCGAAGCTTCAATAATGGAGAAAGCAAGTGG-3′	XbaI	5′-CGTCGTCTAGATTAGGCACAGACGGTATTG-3′
pOX-hCNT3	HindIII	5′-CGCACAAGCTTCAATAATGGAGCTGAGGAG-3′	SpeI	5′-CCGCGCACTAGTTCAAAATGTATTAGAGATCCC-3′