| PRT | phosphoribosyl transferase |
|---|---|
| CAT | promoter-chloramphenical acetyl transferase |
| TUNEL | transferase mediated dUTP biotin nick end labeling |
| TUNEL | transferase mediated dUTP digoxigenin nick end labelling |
| TUNEL | transferase mediated deoxyuridine triphosphate nick end labelling |