hgu95cREFSEQ {hgu95c} | R Documentation |
hgu95cREFSEQ is an R environment that provides mappings between manufacturer ids and RefSeq ids.
Each manufacturer id is mapped to a named vector of RefSeq ids. The
name represents the manufacturer id and the vector contains all RefSeq
ids that can be mapped to that manufacturer id. The length of the
vector may be one or greater, depending on how many RefSeq ids a given
manufacturer id can be mapped to. An NA
is reported for any
manufacturer id that cannot be mapped to a RefSeq id at this time.
RefSeq ids differ in format according to the type of record the ids are for as shown below:
NG_XXXXX: RefSeq accessions for genomic region (nucleotide) records
NM_XXXXX: RefSeq accessions for mRNA records
NC_XXXXX: RefSeq accessions for chromosome records
NP_XXXXX: RefSeq accessions for protein records
XR_XXXXX: RefSeq accessions for model RNAs that are not associated with protein products
XM_XXXXX: RefSeq accessions for model mRNA records
XP_XXXXX: RefSeq accessions for model protein records
Where XXXXX is a sequence of integers.
NCBI http://www.ncbi.nlm.nih.gov/RefSeq/ allows users to query the RefSeq database using RefSeq ids.
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 Sun Mar 26 01:12:51 2006
Package built Sun Mar 26 01:28:37 2006
http://www.ncbi.nlm.nih.gov http://www.ncbi.nlm.nih.gov/RefSeq/
# Convert the environment to a list xx <- as.list(hgu95cREFSEQ) # Remove probe ids that do not map to any RefSeq xx <- xx[!is.na(xx)] if(length(xx) > 0){ # The RefSeq for the first two elements of XX xx[1:2] # Get the first one xx[[1]] }