| hgu95av2UNIGENE {hgu95av2.db} | R Documentation |
hgu95av2UNIGENE is an R object that provides mappings between manufacturer identifiers and UniGene identifiers.
Each manufacturer identifier is mapped to a UniGene identifier. An NA
is reported if the manufacturer identifier cannot be mapped to UniGene at
this time.
A UniGene identifier represents a cluster of sequences of a gene. Using UniGene identifiers one can query the UniGene database for information about the sequences or the Entrez Gene database for information about the genes.
Mappings were based on data provided by: Entrez Gene ftp://ftp.ncbi.nlm.nih.gov/gene/DATA With a date stamp from the source of: 2015-Sep27
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene
AnnotationDb-class for use of
the select() interface.
## select() interface:
## Objects in this package can be accessed using the select() interface
## from the AnnotationDbi package. See ?select for details.
## Bimap interface:
x <- hgu95av2UNIGENE
# Get the probe identifiers that are mapped to an UNIGENE ID
mapped_probes <- mappedkeys(x)
# Convert to a list
xx <- as.list(x[mapped_probes])
if(length(xx) > 0) {
# Get the UNIGENE for the first five probes
xx[1:5]
# Get the first one
xx[[1]]
}