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  1. Article

    Open Access

    New function for Escherichia coli xanthosine phophorylase (xapA): genetic and biochemical evidences on its participation in NAD+ salvage from nicotinamide

    In an effort to reconstitute the NAD+ synthetic pathway in Escherichia coli (E. coli), we produced a set of gene knockout mutants with deficiencies in previously well-defined NAD+ de novo and salvage pathways. Un...

    Wei-Ren Dong, Cen-Cen Sun, Guan Zhu, Shi-Hua Hu, Li-**n **ang in BMC Microbiology (2014)