cytoplasmic ribonucleoprotein granule cytoplasmic U snRNP body https://github.com/geneontology/go-ontology/issues/29907 2009-12-04T10:31:29Z GO:0071254 U body cellular_component U-body A focus in the cytoplasm that contains uridine-rich small nuclear ribonucleoproteins (U snRNPs) and essential snRNP assembly factors. These U bodies are invariably found in association with P bodies. mah