GOMFCHILDREN {GO}R Documentation

Annotation of GO identifiers by the GO identifiers of their direct chileren

Description

This is an R environment (hash table) mapping GO ids to the GO ids of their direct children under molecular function (MF). Direct children of a given GO id are those GO ids correponding to all the children nodes that have direct link to the node for the GO id of concern based on the directed acyclic graph defined by Gene Ontology Consortium. GO terms for children nodes are more specific than that for the parents

Details

GO ids are keys and the corresponding children GO ids are values. Values are vectors of length 1 or greater depending on whether the GO id of concern has only one or more children. GO ids that do not have any child node are assigned NA as the values.

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 by:

Gene Ontology:http://www.godatabase.org/dev/database/archive/2004-07-01/go_200407-termdb.xml.gz. Built: 2004-07-01

Package built: Tue Sep 28 11:27:36 2004

References

http://www.geneontology.org/ and http://www.ncbi.nlm.nih.gov/LocusLink

Examples

    require("GO", character.only = TRUE) || stop("GO unavailable")
    require("annotate", character.only = TRUE) || stop("annoate unavailable")
    # Convert the environment object to a list
    xx <- as.list(GOMFCHILDREN)
    # Remove GO ids that do not have any children
    xx <- xx[!is.na(xx)]
    if(length(xx) > 0){
        # Get the children GO ids for the first elents of xx
        goids <- xx[[1]]
        # Find out the GO terms for the first parent goid
        GOID(GOTERM[[goids[1]]])
        Term(GOTERM[[goids[1]]])
        Synonym(GOTERM[[goids[1]]])
        Secondary(GOTERM[[goids[1]]])
        Definition(GOTERM[[goids[1]]])
        Ontology(GOTERM[[goids[1]]])
    }

[Package GO version 1.6.5 Index]