\name{LAPOINTEMAP} \alias{LAPOINTEMAP} \title{Map between Manufacturer Identifiers and cytogenetic maps/bands} \description{ LAPOINTEMAP is an R object that provides mappings between manufacturer identifiers and cytoband locations. } \details{ Each manufacturer identifier is mapped to a vector of cytoband locations. The vector length may be one or longer, if there are multiple reported chromosomal locations for a given gene. An \code{NA} is reported for any manufacturer identifiers that cannot be mapped to a cytoband at this time. Cytogenetic bands for most higher organisms are labeled p1, p2, p3, q1, q2, q3 (p and q are the p and q arms), etc., counting from the centromere out toward the telomeres. At higher resolutions, sub-bands can be seen within the bands. The sub-bands are also numbered from the centromere out toward the telomere. Thus, a label of 7q31.2 indicates that the band is on chromosome 7, q arm, band 3, sub-band 1, and sub-sub-band 2. 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: 2012-Mar7 } \references{ \url{http://www.ncbi.nlm.nih.gov} } \examples{ x <- LAPOINTEMAP # Get the probe identifiers that are mapped to any cytoband mapped_probes <- mappedkeys(x) # Convert to a list xx <- as.list(x[mapped_probes]) if(length(xx) > 0) { # Get the MAP for the first five probes xx[1:5] # Get the first one xx[[1]] } } \keyword{datasets}