Table 3. Oligonucleotide primers used for RT-PCR.

Gene	Gene ID	Primer Sequence	Product Size
cClaudin-2	GI:118089520	Forward 5′-ccatggtctctatgggactcc-3′	684
		Reverse 5′-gcttctacacgtatcccgtc-3′
cClaudin-3	GI:46049088	Forward 5′-gcccatgtggagggtgac-3′	376
		Reverse 5′-caccagcgggttgtagaaat-3′
cClaudin-4	GI: 363741048	Forward 5′-cgggatccgatggcctccatggggct-3′	622
		Reverse 5′-gtggaattccttacacgtagttgctg-3′
cClaudin-8	GI:50730032	Forward 5′-atgatcagtggtgcgtgccaaattgc-3′	675
		Reverse 5′-ctagacgtactgactcttagagtagg-3′
cClaudin-10	GI:118084678	Forward 5′-catggcgagcacgtcggcggag-3′	687
		Reverse 5′-ttaaacgtaagcgttcttgtc-3′
cClaudin-11	GI:118095299	Forward 5′-catgggtggccacctgcctgca-3′	608
		Reverse 5′-ttcagacgtgggcgctctta-3′
cClaudin-12	GI:118085731	Forward 5′-atgggctgcagggatgttcat-3′	738
		Reverse 5′-cttaagatgtgtgtgtcacaaca-3′
cClaudin-14	GI:118083818	Forward 5′-atggcaagcacggccgttcagttac-3′	708
		Reverse 5′-tcacacatagtcattcaatctgtagc-3′
cClaudin-15	GI:50751942	Forward 5′-atggcttcatcttctctacag-3′	675
		Reverse 5′-ttagatgtactccttg-3′
cClaudin-16	GI:50752418	Forward 5′-atgccactggatgtaccaacacc-3′	744
		Reverse 5′-tcacactcttgtatccacggc-3′
cClaudin-17	GI:118083832	Forward 5′-catggcttgctgtgcattac-3′	669
		Reverse 5′-gccttctatacgtatgcctgc-3′
cClaudin-18	GI:118094873	Forward 5′-atgtccacgaccctctggc-3′	780
		Reverse 5′-ctagacgtactgactcttagagtagg-3′
cClaudin-20	GI:118088400	Forward 5′-ccgaactggaaggtaaatgc-3′	522
		Reverse 5′-catgctccttgctgctttttg-3′
cClaudin-22	GI:118101949	Forward 5′-atgctactggcgctcttcgg-3′	654
		Reverse 5′-cagattaccaggtcagcg-3′
cClaudin-23	GI: 50746852	Forward 5′-atgcggacaccggccgtgat-3′	702
		Reverse 5′-tcatcttggggtctgg-3′