3.1.3.7 brain - 728931, 750366 3.1.3.7 colon - 728931 3.1.3.7 embryo - 694864 3.1.3.7 glioma cell in glioma tissues, phosphocholine(36:1) is not detected and 3'-phosphoadenylate (pAp) content is significantly increased. The gene expression of the 3'-nucleotidase 3'(2'),5'-bisphosphate nucleotidase 1 (BPNT-1) is dramatically downregulated, quantitative real-time polymerase chain reaction (qRT-PCR) expression analysis. Gene expression of enzymes associated with pAp metabolism 752237 3.1.3.7 heart - 728931 3.1.3.7 kidney isoform Bpnt1 is most enriched in the enterocytes of the small intestine and the proximal tubule and thick ascending limb epithelia of the kidneys 728931 3.1.3.7 leaf - 81108 3.1.3.7 liver - 728931, 81103, 81107 3.1.3.7 lung - 728931 3.1.3.7 additional information isoform Bpnt1 is expressed at relatively similar levels in a majority of tissues including the brain, heart, lungs, spleen, pancreas, stomach, liver, small intestine, colon, kidneys, and testes. Bpnt1 is most enriched in the enterocytes of the small intestine and the proximal tubule and thick ascending limb epithelia of the kidneys 728931