# molecular_function 20150521: LUCA_PTN000211803 has function RNA binding (GO:0003723) 20150521: LUCA_PTN000211803 has function structural constituent of ribosome (GO:0003735) # cellular_component 20150521: Bacteria _PTN000211890 located in cytosolic large ribosomal subunit (GO:0022625) 20150521: Viridiplantae_PTN000211863 lost/modified mitochondrial large ribosomal subunit (GO:0005762) capacity 20150521: Eukaryota_PTN000211804 located in mitochondrial large ribosomal subunit (GO:0005762) # biological_process 20150521: LUCA_PTN000211803 participates in translation (GO:0006412) # Notes Annotation inferences using phylogenetic trees The goal of the GO Reference Genome Project, described in PMID 19578431, is to provide accurate, complete and consistent GO annotations for all genes in twelve model organism genomes. To this end, GO curators are annotating evolutionary trees from the PANTHER database with GO terms describing molecular function, biological process and cellular component. GO terms based on experimental data from the scientific literature are used to annotate ancestral genes in the phylogenetic tree by sequence similarity (ISS), and unannotated descendants of these ancestral genes are inferred to have inherited these same GO annotations by descent. The annotations are done using a tool called PAINT (Phylogenetic Annotation and INference Tool).