| Mnemonic | Description |
|---|---|
| D | dead zone |
| L0–1 | low zone |
| F0–1 | FAIRE only |
| R0–5 | repression |
| C0 | CTCF (strong) |
| C1 | CTCF (weak) |
| H3K9me1 | H3K9me1 only |
| TF0–2 | transcription factor activity |
| TSS | transcription start site |
| GS | gene body (start) |
| E/GM | enhancer/gene middle |
| GM0–1 | gene body (middle) |
| GE0–2 | gene body (end) |