GOCCANCESTOR {GO.db} | R Documentation

## Annotation of GO Identifiers to their Cellular Component Ancestors

### Description

This data set describes associations between GO molecular function (CC) terms and their ancestor CC terms, based on the directed acyclic graph (DAG) defined by the Gene Ontology Consortium. The format is an R object mapping the GO CC terms to all ancestor terms, where an ancestor term is a more general GO term that precedes the given GO term in the DAG (in other words, the parents, and all their parents, etc.).

### Details

Each GO CC term is mapped to a vector of ancestor GO C terms.

Cellular component is defined as the subcellular structures, locations, and macromolecular complexes; examples include nucleus, telomere, and origin recognition complex as defined by Gene Ontology Consortium.

Mappings were based on data provided: Gene Ontology ( ftp://ftp.geneontology.org/pub/go/godatabase/archive/latest ) on 200803

### References

http://www.geneontology.org/ and http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene

### Examples

      # Convert the object to a list
      xx <- as.list(GOCCANCESTOR)
      # Remove GO IDs that do not have any ancestor
      xx <- xx[!is.na(xx)]
      if(length(xx) > 0){
        # Get the ancestor GO IDs for the first two elents of xx
        goids <- xx[1:2]
      }

[Package GO.db version 2.2.0 Index]