Table 2.

Characteristics of selected polymorphisms involved in PD-1 gene receptor 4.

SNP ID/Assay ID	Common Name	Chromosome Position	NucleotideChange	Region	MAF in Human Populations			Present Study
					Global	European	South Asian
Rs10204525	PD-1.6	Chr2/241851121	G/A	3′ UTR	A = 0.35	A = 0.12	A = 0.19	A = 0.19
Rs2227981	PD-1.5	Chr 2/241850169	A/G	Exon 5	A = 0.35	A = 0.40	A = 0.24	A = 0.67
Rs2227982	PD-1.9	Chr 2/242793433	G/A	Exon 5	A = 0.14	A = 0.01	A = 0.06	A = 0.34

MAF: minor allele frequency.