description
This is the later portion of the pathway used for de novo biosynthesis of NAD, which starts with the amino acid :TRP. For the full pathway and more information, please see :NADSYN-PWY

external resources
NCBI:142217
BIOCYC:HUMAN_PWY-5653

genes
QPRT , NADSYN1 , NMNAT1 , NMNAT3 ,