Genetic Polymorphisms in the EGFR (R521K) and Estrogen Receptor (T594T) Genes, EGFR and ErbB-2 Protein Expression, and Breast Cancer Risk in Tunisia

Table 1

Position of SNP and enzyme and primers used in this study.

Genes*	Variation	rs code^**	Enzyme	Primer sequences (5^′-3^′)
EGFR	A/G	rs11543848	MvaI	F 5^′-TGCTGTGACCCACTCTGTCT-3^′
		(rs2227983)		R 5^′-CCAGAAGGTTGCACTTGTCC- 3^′
ESR1	A/G	rs2228480	BtgI	F 5^′-GAGGAGACGGACCAAAGCCAC-3^′
				R 5^′-GCCATTGGTGTTGGATGCATGC-3^′

^∗gene names according to gene database in NCBI: http://www.ncbi.nlm.nih.gov/gene. ^∗∗rs code in dbSNP http://www.dbsnp.org/.