>sp|O25910|NADA_HELPY Quinolinate synthase OS=Helicobacter pylori GN=nadA MPTDNDLKAAILELLRDLDVLLVAHFYQKDEIVELAHYTGDSLELAKIASQSDKNLIVFC GVHFMGESVKALAFDKQVIMPKLSCCSMARMIDSHYYDRSVHLLKECGVKEFYPITYINS NAEVKAKVAKDDGVVCTSRNASKIFNHALKQNKKIFFLPDKCLGENLALENGLKSAILGA NSQEEIKNADVVCYNGFCSVHQLFKLEDIEFYRQKYPDILIAVHPECEPSVVSNADFSGS TSQIIEFVEKLSPNQKVAIGTESHLVNRLKAKRHHQNTFILSSTLALCPTMNETTLKDLF EVLKAYKNHRAYNTIELKDEVARLAKLALTKMMELS