TABLE 1.

Oligonucleotides used as primers for competitive RT-PCR

Gene	5′ Primer (5′→3′)	3′ Primer (5′→3′)
cbh1-1a	AAGATCGTACTAGACGCTAACCG	GGTGACAACGGTGAAGGTCTTCGTC
cbh1-2	AAAGTCGTCCTCGACGTGAACTG	GGTGACGACAGTGAAGAGTTTGGTG
cbh1-3	AAGATCGTGCTCGACGCGAA	GTGACAACGGTGAAGGGCTT
cbh1-4	AAGGTCGTCCTCGACTCGAA	CGACGGTGAAGGGCTTGGAG
cbh1-5	ACCGTCGTGCTCGACTCCAA	CGACGGTGAAGGGCTTGCTG
cbh1-6	AAGATCGTGCTCGACGCCAA	GTGACGACCGTGAACGGCTT
cbh2b	AGCGCCAACTACCAGAACTACCT	CTTCGGGGTCACGGGGATGAAAC
cdhb	CAGTGCGGTGGCATTGGCTG	CTGGTCGACGATGAAGGTCG

^aThe primers for cbh1-3, cbh1-4, cbh1-5, and cbh1-6 have been described previously (33). The design and relative positions of all cbh1 primers are shown in Fig. 1. 

^bThe cbh2 and cdh primers were based on previously published sequences (23, 32).