The EPIYA-ABCC motif pattern in CagA of Helicobacter pyloriis associated with peptic ulcer and gastric cancer in Mexican population

Table 1 PCR primers used in this study

Primer name and reference	Primer sequence (5′to 3′)	Motif amplied	Size (bp)
cagAF D008 [9]	ACAATGCTAAATTAGACAACTTGAGCGA	Constant region of the cagA gene	298
cagAR R008 [9]	TTAGAATAATCAACAAACATCACGCCAT	Constant region of the cagA gene
cag2F [30],[41]	GGAACCCTAGTCGGTAATG	cagA 3′ variable region	550 to 850
cag4 [30],[41]	ATCTTTGAGCTTGTCTATCG	cagA 3′ variable region	550 to 850
cagA28F [41]	TTCTCAAAGGAGCAATTGGC	Forward for all EPIYA motifs
cagA-P1C [41],[42]	GTCCTGCTTTCTTTTTATTAACTTKAGC	EPIYA-A	264
cagA-P2TA [41],[42]	TTTAGCAACTTGAGTATAAATGGG	EPIYA-B	306
cagAWest [42]	TTTCAAAGGGAAAGGTCCGCC	EPIYA-C	501
cagAEast [42]	AGAGGGAAGCCTGCTTGATT	EPIYA-D	495

ISSN: 1471-230X