hgprt- chinese hamster and human fibroblasts were able to incorporate 3h-labeled purine metabolite ( s ) from medium in which mouse hgprt+ b82 cells had been grown for 24 h with [ 3h ] hypoxanthine , but mouse a9 fibroblasts that were deficient in hgprt , adenine phosphoribosyltransferase ( aprt ) , and methylthioadenosine phosphorylase ( mtap ) were unable to incorporate these metabolites .
C0016030
fibroblasts
C0007634
cells