NT5C3 Full-Length MS Protein Standard (NP_057573), Labeled with [U- 13C6, 15N4]-L-Arginine and [U- 13C6, 15N2]-L-Lysine, was produced in human 293 cells (HEK293) with fully chemically defined cell culture medium to obtain incorporation efficiency at Creative-Proteomics. This gene encodes a member of the 5-nucleotidase family of enzymes that catalyze the dephosphorylation of nucleoside 5-monophosphates. The encoded protein is the type 1 isozyme of pyrimidine 5 nucleotidase and catalyzes the dephosphorylation of pyrimidine 5 monophosphates. Mutations in this gene are a cause of hemolytic anemia due to uridine 5-prime monophosphate hydrolase deficiency. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and pseudogenes of this gene are located on the long arm of chromosomes 3 and 4.