Predicted to enable protein tag activity and ubiquitin protein ligase binding activity. Involved in protein ubiquitination; ribosomal large subunit assembly; and ribosomal large subunit export from nucleus. Located in cytoplasm and nucleus. Part of cytosolic large ribosomal subunit. Orthologous to human UBA52 (ubiquitin A-52 residue ribosomal protein fusion product 1).
SGD Description
Ubiquitin-ribosomal 60S subunit protein L40A fusion protein; cleaved to yield ubiquitin and ribosomal protein L40A; ubiquitin may facilitate assembly of the ribosomal protein into ribosomes; homologous to mammalian ribosomal protein L40, no bacterial homolog; RPL40A has a paralog, RPL40B, that arose from the whole genome duplication; relative distribution to the nucleus increases upon DNA replication stress