| for their activity | 16 | purpose |
| as a cofactor | 6 | other |
| to function | 6 | purpose |
| enzyme → require → zinc | 28 |
| enzyme → contain → zinc | 10 |
| enzyme → need → zinc | 6 |
| enzyme → use → zinc | 3 |
| negative | neutral | positive |
| 0.053 | 0.879 | 0.069 |
| Raw frequency | 47 |
| Normalized frequency | 0.501 |
| Modifier score | 0.700 |
| Perplexity | 251.834 |