A GO-Slim is a selection of high-level terms from the Biological Process, Molecular Function, and Cellular Component ontologies. These are more general terms that represent major branches in each ontology. For example, the GO term nucleus is a GO-Slim term from the Cellular Component ontology. Its children (perinuclear space, nuclear matrix, etc) are more detailed GO terms and not GO-Slim terms. All available GO-Slims are developed by the SGD curators. The GO Term Mapper identifies the GO-Slim terms for a list of genes based on their annotation to detailed GO terms. The GO-Slim used with the GO Term Mapper contains very high level GO terms. The go_slim_mapping.tab file available on the SGD ftp site maps all gene products to a yeast-specific GO-Slim. The yeast-specific GO-Slim contains a set of GO terms that best represent the major biological processes, functions, and cellular components that are found in S. cerevisiae.

This definition is in context to Yeast Genome. See more contextual defintions for GO-Slim.