GOMFANCESTOR {GO.db} | R Documentation

## Annotation of GO identifiers to their Molecular Function Ancestors

### Description

This data set describes associations between GO molecular function (MF) terms and their ancestor MF terms, based on the directed acyclic graph (DAG) defined by the Gene Ontology Consortium. The format is an R object mapping the GO MF 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 MF term is mapped to a vector of ancestor GO MF terms.

Molecular function is defined as the tasks performed by individual gene products; examples are transcription factor and DNA helicase 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(GOMFANCESTOR)
      # Remove GO identifiers that do not have any ancestor
      xx <- xx[!is.na(xx)]
      if(length(xx) > 0){
        # Get the ancestor GO identifiers for the first two elents of xx
        goids <- xx[1:2]
      }

[Package GO.db version 2.2.0 Index]