perinucleolar compartment
The perinucleolar compartment (PNC) is a subnuclear structure associated with, but structurally distinct from, the nucleolus. The PNC contains large amounts of the heterogeneous nuclear ribonucleoprotein complex (hnRNP) called hnRNP 1 (PTB). Many RNA binding proteins as well as RNA polymerase III transcripts are highly enriched in this compartment. PTB and pol III transcripts are required for the integrity of the PNC.
GO:0110165
cellular anatomical structure
is_a
GO:0031981
nuclear lumen
part_of
perinucleolar region
exact
SPCC830.03