Cellular component

A heterodimer associated with 90S and 66S preribosomes. Predominantly, but not exclusively, nucleolar; involved in ribosomal large subunit biogenesis.

Noc complexes exhibit a dynamic intranuclear location; consider also annotating to 'nucleolus ; GO:0005730' and/or 'nucleoplasm ; GO:0005654'. Note that the term name uses Saccharomyces gene product names because no other names have yet arisen for this complex; the term nevertheless can be used for analogous complexes in other eukaryotes, and the name can be changed if better wording is found.