# HISTORY 07 May 2016: Updated by: TOUCHUP-v1.18 24 Mar 2016: Updated by: TOUCHUP-v1.15 14 Mar 2016: Updated by: TOUCHUP-v1.14 07 May 2016: Updated by: TOUCHUP-v1.18 # molecular_function 20150521: root_PTN000205184 has function large ribosomal subunit rRNA binding (GO:0070180) 20150521: root_PTN000205184 has function structural constituent of ribosome (GO:0003735) # cellular_component 20150521: root_PTN000205184 is found in cytosolic large ribosomal subunit (GO:0022625) 20150521: Eukaryota_PTN000205281 is found in mitochondrial large ribosomal subunit (GO:0005762) 20150521: Cyanobacteria_PTN000924833 is NOT found in mitochondrial large ribosomal subunit (GO:0005762) 20150521: Eukaryota_PTN000205281 is NOT found in cytosolic large ribosomal subunit (GO:0022625) # biological_process # WARNINGS - THE FOLLOWING HAVE BEEN REMOVED FOR THE REASONS NOTED # NOTES # REFERENCE 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).