TABLE 1.

Sequences of the primers used for RT‐PCR experiments of the tracheal epithelium

nAChR subunit	Accession no.	Sequence	Product length (bp)
α2	NM_144803	fwd: ctcccatcctgctttccag	115
		rev: gtttgaacaggcggtcctc
α3	NM_145129	fwd: cgcctgttccagtacctgtt	196
		rev: cagagggtttccatttcagc
α4	NM_015730	fwd: ctcagatgtggtccttgtcc	238
		rev: ggtgggtgactgcaaagttc
α5	NM_176844	fwd: ccagctaatgaccaccaacg	218
		rev: gctgcgtccaagtgacagt
α6	NM_021369	fwd: cctgcactgcggtttatgtc	231
		rev: cagccacagattggtctcca
α7	NM_007390	fwd: acaatacttcgccagcacca	144
		rev: aaaccatgcacaccagttca
α9	NM_001081104	fwd: caatgctctgcgtccagtag	208
		rev: acaccagatcgctgggaa
α10	NM_001081424	fwd: tctgctcctgctctttctcc	207
		rev: ccacaggtacaaggtcagca