Source: preserved XML, pre-release post-processed-2026_02_28k.xml. The source paragraph is reproduced verbatim. Current sequence and taxonomy are identity checks, not proven prediction-time input.
Component of the 90S pre-ribosome involved in the maturation of rRNAs. Required for early cleavages of the pre-RNAs in the 40S ribosomal subunit maturation pathway.
Assessment: CNN (score 2). Budding yeast Rrp36 copurifies with early pre-rRNAs and 90S proteins; the specific RRP36 domain in Q9P6P2, target nucleolar localization and PAINT-curated ancestral complex assertion support conserved transfer to fission yeast. This is existing curated complex biology, not a new direct target purification claim.
Assessment: CNN (score 2). The demonstrated ortholog function is early small-subunit pre-rRNA maturation, supported across budding yeast and human cells. Existing GOA specifies the SSU precursor pathway. The plural wording must not be expanded into an independent requirement for all large-subunit rRNAs.
Assessment: CNN (score 2). The source wording pre-RNAs is interpreted as pre-rRNAs in its ribosome context. Ortholog depletion impairs early cleavage and reduces mature 18S production; cross-eukaryotic conservation and the specific family/particle placement justify the functional inference. The claim concerns a required processing factor, not direct catalysis of cleavage, and does not import exact budding-yeast A0/A1/A2 coordinates into fission yeast. Equivalent early SSU-maturation biology is already curated.
These are prose-claim assessments; no GO mappings were invented for the paragraph. CNN denotes established equivalent biology, including justified conserved-family inference, and makes no assertion about training-data membership.