Interleukin-1 Two-Locus Haplotype Is Strongly Associated with Severe Chronic Periodontitis among Yemenis

Table 2

Primer sequences used in the study.

Locus	Primer sequence (5^′-3^′)	Reference
IL-1𝛼	Forward: TGTTCTACCACCTGAACTAGGC^*	[9]
	Reverse: TTACATATGAGCCTTCCATG
IL-1𝛽	Forward: CTCAGGTGTCCTCGAAGAAATCAAA
	Reverse: GCTTTTTTGCTGTGAGTCCCG

^* There are additional 5 nucleotides (AAGCT) in the 5^′ end of the primer according to the reference; since they were found to be noncomplementary to the target and change the amplicon size to 104 bp, they were omitted in this study.