\HeaderA{GOCCCHILDREN}{Annotation of GO identifiers by the GO identifiers of their
direct chileren}{GOCCCHILDREN}
\keyword{datasets}{GOCCCHILDREN}
\begin{Description}\relax
This is an R environment (hash table) mapping GO ids to the GO
ids of their direct children under cellular component (CC). 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
\end{Description}
\begin{Details}\relax
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.

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:\url{http://www.godatabase.org/dev/database/archive/2004-09-01/go_200409-termdb.xml.gz}. Built: 2004-09-01

Package built: Mon Jan 10 19:19:56 2005
\end{Details}
\begin{References}\relax
\url{http://www.geneontology.org/} and
\url{http://www.ncbi.nlm.nih.gov/LocusLink}
\end{References}
\begin{Examples}
\begin{ExampleCode}
  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(GOCCCHILDREN)
  # Remove GO ids that do not have any children
  xx <- xx[!is.na(xx)]
  if(length(xx) > 0){
    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]]])
  }
\end{ExampleCode}
\end{Examples}

