| id | GO:0001651 Detailed information |
|---|---|
| name | dense fibrillar component |
| namespace | cellular_component |
| def | "A structure found in the nucleolus, which contains newly synthesized preribosomal RNA (pre-rRNA) and a collection of proteins." [PMID:10754561] |
| is_a | GO:0044452 ! nucleolar part |