GOCCOFFSPRING {GO} | R Documentation

## Annotation of GO Identifiers to their Cellular Component Offspring

### Description

This is an R environment (hash table) mapping GO identifiers to all the GO identifiers of their offspring based on the cellular component (CC) GO terms. Offspring are defined as the direct or indirect children/grand children nodes of a given node for a GO identifier based on the directed acyclic graph defined by Gene Ontology Consortium. GO terms for offspring nodes are more specific than that of the parent.

### Details

GO identifiers are keys and the corresponding offspring GO identifiers are values. Values are vectors of GO identifiers for all the offspring of the key GO identifier. GO identifiers that do not have any offspring node are assigned NA as the value.

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

Mappings were based on data provided:

Gene Ontology:ftp://ftp.geneontology.org/pub/go/godatabase/archive/latest. Built: Build Information not available

Package built: Wed Aug 29 09:09:17 2007

### References

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

### Examples

      require("GO", character.only = TRUE) || stop("GO unavailable")
      # Convert the environment object to a list
      xx <- as.list(GOCCOFFSPRING)
      # Remove GO identifiers that do not have any offspring
      xx <- xx[!is.na(xx)]
      if(length(xx) > 0){
        # Get the offspring GO identifiers for the first two elents of xx
        goidentifiers <- xx[1:2]
      }

[Package GO version 2.0.1 Index]