Gene Ontology annotation based on UniProtKB/Swiss-Prot Subcellular Location vocabulary mapping, accompanied by conservative changes to GO terms applied by UniProt. 
Transitive assignment of GO terms based on the UniProtKB/Swiss-Prot Subcellular Location vocabulary. UniProtKB Subcellular Location is a controlled vocabulary used to supply subcellular location information to UniProtKB entries in the SUBCELLULAR LOCATION lines. Terms from this vocabulary are annotated manually to UniProtKB/Swiss-Prot entries but are automatically assigned to UniProtKB/TrEMBL entries from the underlying nucleic acid databases and/or by the UniProt automatic annotation program.
UniProt-GOA