Table 1. Primers for the construction of recombinant expression plasmids.

Name	Sequence (5′-3′)	Enzyme
F-GST-N1	CAGGATCCGCCAACCAGGGACAACGT	Bam HI
R-GST-N1	CACTCGAGGAATTTCAAAGCTTTGGAT	Xho I
F-GST-N2	CAGGATCCGATGGTAAAGTGCCAGGC	Bam HI
R-GST-N2	CACTCGAGAGTTCTCTTCCAGGTGTGTT	Xho I
F-GST-N3	CAGGATCCGCAGGTAAAGGTGATGTGA	Bam HI
R-GST-N3	CACTCGAGGTTCGTTACCTCATCAATCA	Xho I
F-GFP-N	GTGAATTCATGGCCAACCAGGGACAACGT	Eco RI
R-GFP-N	GTGGATCCTTAGTTCGTTACCTCATCAATCA	Bam HI
F-TGEV-N-565-606	AATTCAGTGTAGAACAAGCTGTTCTTGCCGCACTTAAAAAGTTAGGTG
R-TGEV-N-565-606	GATCCACCTAACTTTTTAAGTGCGGCAAGAACAGCTTGTTCTACACTG
F-TGEV-N-736-771	AATTCGTGACAAGATTTTATGGAGCTAGAAGCAGTTCAGCCG
R-TGEV-N-736-771	GATCCGGCTGAACTGCTTCTAGCTCCATAAAATCTTGTCACG