Nip7 is an RNA-binding ribosome-biogenesis factor with pre-PUA and PUA domains. It associates with nascent 60S ribosomal subunits in the nucleolus and supports assembly of the large-subunit preribosome. The fission-yeast protein is present in structurally characterized early pre-60S particles; it is an assembly factor rather than a constitutive structural protein of the mature ribosome.
The 2022 primary paper focuses on Fkbp39/nucleophosmin but reports multiple fission-yeast pre-60S particles. The RCSB8ESQ metadata explicitly identifies Q1MTQ9 as entity43, author chainl; the downloaded entity response preserves the identity mapping. This directly supports the target’s occurrence in an early large-subunit precursor even though the article prose does not prominently name Nip7.
The PUA/pre-PUA architecture supports an RNA-binding assembly factor. It neither confers an RNA-cleavage or methyltransferase reaction nor turns Nip7 into a mature ribosomal constituent. PANTHER PTHR23415 has a mixed CKS/Nip7 name; that broad label is not evidence for kinase regulation by this protein. Falcon misses the target structural deposit and HDA nucleolar/cytosolic annotation and consequently understates the direct target evidence.
Exact retained output. These are name/location claims, not emitted GO/EC predictions. CNN denotes overlap with existing supported annotation; it does not establish literal membership in the training set.
| Claim type | Verbatim output | Assessment | Evidence and interpretation |
|---|---|---|---|
| name | 60S ribosome subunit biogenesis protein NIP7 | CNN | The exact Q1MTQ9 protein is author chain l/entity43 in deposited pre-60S structure8ESQ linked to PMID:36423630. The name accurately identifies an assembly factor, not a mature ribosomal structural constituent. |
The genuine Falcon report is retained with its provider metadata and artifact. Its conclusions were checked against the target record, exact accession and primary sources described above. Scientific uncertainties are recorded as UNC/UNDECIDED findings rather than a request for another reviewer to perform this assessment.