| Cq >35 | no mRNA expression |
| Cq = 30-34 | very low mRNA expression |
| 25<Cq ≤ 30 | low mRNA expression |
| Cq ≤ 25 | high mRNA expression |
Data from initial screening (Cq, n=4) where the genes of interest were investigated in 10 different cell lines. Cq, quantitation cycle; ENPPs, ectonucleotide pyrophosphatase/phosphodiesterases; ENTPDases, ectonucleoside triphosphate diphosphohydrolases; NT5E, ecto-5’-nucleotidase (CD73); GAPDH, glyceraldehyde-3-phosphate dehydrogenase.