\HeaderA{hgu2beta7UNIGENE}{Mappings between probe identifiers and UniGene cluster identifiers}{hgu2beta7UNIGENE}
\keyword{datasets}{hgu2beta7UNIGENE}
\begin{Description}\relax
NCBI partitions sequences submitted to GenBank into non-redundant sets
of clusters. Each cluster contains sequences that represent a unique
gene and is assigned a unique UniGene id. hgu2beta7UNIGENE maps probe
identifiers to UniGene cluster identifiers for genes represented by
the probe ids
\end{Description}
\begin{Details}\relax
A UniGene id represents a cluster of sequences of a gene. Using
UniGene ids one can query the UniGene database for information about
the sequences or the LocusLink database for information about the
genes.  

Mappings were based on data provided by:

LocusLink:\url{ftp://ftp.ncbi.nih.gov/refseq/LocusLink/LL_tmpl.gz}. Built: February 16, 2005

Package built Wed Feb 16 23:32:20 2005
\end{Details}
\begin{References}\relax
\url{http://www.ncbi.nlm.nih.gov/LocusLink}
\end{References}
\begin{Examples}
\begin{ExampleCode}
    # Convert the environment to a list
    xx <- as.list(hgu2beta7UNIGENE)
    # Remove probe ids that do no map to any UniGene id
    xx <- xx[!is.null(xx)]
    if(length(xx) > 0){
        # The UniGene ids for the first two elements of XX
        xx[1:2]
        # Get the first one
        xx[[1]]
    }
\end{ExampleCode}
\end{Examples}

