TABLE 1.

Oligonucleotide primers used for sequencing of the H. pylori cagA gene

Primera	Sequence	Corresponding DNA sequenceb
cagA L2 (+)	5′-AAGGAGAAACAATGACTAACGAAACTATTG-3′	−11-19c
cagA L2 (−)	5′-TCCTTTAAGATTTTTGGAAACCACCTTTTG-3′	+4-3536
cagA B1 (−)*	5′-CTGCAAAAGATTGTTTGGCAGA-3′	520-499
cagA M2 (+)*	5′-ATACAAGGCTTACCGCCTG-3′	754-772
cagA S2*	5′-GGCAATGGTGGTCCTGGAGCTAGGC-3′	976-1000
cagA M1 (−)*	5′-GTAGCCACATTGTCGCCTTGTTGG-3′	1055-1032
cagA C2 (+)*	5′-GAATTGTCTGATAAACTTGAAA-3′	2059-2080
cagA C2 (−)*	5′-TTTGCTTGCGTTACCTTGCTG-3′	2306-2286
cagA C3 (−)*	5′-GCGTATGTGGCTGTTAGTAGCG-3′	3210-3189
cagA 3′F1*	5′-AAACCCTGAGTGGCTCAAGCTC-3′	3273-3294

^a*, primer used for sequencing.

^bNucleotide positions in the HP0547 (cagA) gene of H. pylori 26695 (GenBank accession no. AE000569).

^cProduct size of 3,576 bp.