Ribosomal protein P0 is the functional equivalent of E.coli protein L10. P0 forms a pentameric complex by interaction with dimers of P1 and P2. Identified in a IGF2BP1-dependent mRNP granule complex containing untranslated mRNAs. Interacts with APEX1. Interacts with FMR1. Localized in cytoplasmic mRNP granules containing untranslated mRNAs. Belongs to the universal ribosomal protein uL10 family.