| SHMT | serine-hydroxymethyl transferase |
|---|---|
| S-OCT | serum ornithine carbamyl transferase |
| TdT | terminal deoxynucleotidyl transferase |
| TST | thiosulfate sulfur-transferase; thromboplastin screening test; total sleep time; transforming sequen... |
| UDPGT | uridine diphosphate glucuronosyl transferase |