Gp unlocalized file

From GO Public

If your database supplies gene identifiers that have been manually curated from the literature, but where no sequence or genomic location is known (such genes have been variously described as 'unlocalised genes', 'single heritable traits' or 'phenotypic orphans'), then you should additionally supply a complete gp_unlocalized_file.

This file should contain all the non-genome localized identifiers available in your database, including those not annotated to GO.