mgu74bUNIGENE {mgu74b} | R Documentation |
mgu74bUNIGENE is an R environment that provides mappings between manufacturer ids and UniGene ids.
Each manufacturer id is mapped to a UniGene id. An NA
is
reported if the manufacturer id cannot be mapped to UniGene at this time.
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:
Entrez Gene:ftp://ftp.ncbi.nlm.nih.gov/gene/DATA/. Built: Source data downloaded from Entrez Gene on Sat Mar 25 22:37:22 2006
Package built Sat Mar 25 22:56:18 2006
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene
# Convert the environment to a list xx <- as.list(mgu74bUNIGENE) # 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]] }