Table 2. DNA primers designed and used in this study.

Name	Sequence (5′→3′)	Tm value (°C)	Restriction site
p-IL6-F	AGTGAATTCGCCGCCACCATGAACTCCTTCTCCACAAGC	61	EcoR I
p-IL6-R	TGAGCTAGCCATTTGCCGAAGAGCCC	63	Nhe I
p-IL6R-F	AATGCGGCCGCATGCTGGCCCCAAGGC	58	Not I
p-IL6R-R	GGTTCTAGAGGGCTATCTGGGGAAGAAGTAGTC	55	Xba I

Base sequences underlined were the sites for restriction digestion; F and R separately referred to forward primer and reverse primer.