3.5.1.129 Biosynthesis of nucleoside diphosphoramidates in Campylobacter jejuni Campylobacter jejuni subsp. jejuni serotype O:2 3.5.1.129 Biosynthesis of nucleoside diphosphoramidates in Campylobacter jejuni Campylobacter jejuni subsp. jejuni serotype O:2 ATCC 700819