... Helicobacter pylori acidic stress response factor HP1286 is a YceI homolog with new binding specificity Lorenza Sisinni1,2, Laura Cendron1,2, Gabriella Favaro3and Giuseppe Zanotti1,21 ... expression, and purificationThe HP1286 gene was amplified by PCR from H. pylori CCUG17874 genomic DNA using the following primers:forward, 5Â-CACCAAACCTTATACGATTGATAAGGCAAAC-3Â; and reverse, 5Â-TTATTATTGGGCGTAAGCTTCTAG-3Â. ... shape and length of the cavity indicate that, at variance with other members of the family, HP -YceI has a binding specificity foramphiphilic compounds with a linear chain of about 22 carbon atoms....