hgu133plus2GENENAME      package:hgu133plus2.db      R Documentation

_M_a_p _b_e_t_w_e_e_n _M_a_n_u_f_a_c_t_u_r_e_r _I_D_s _a_n_d _G_e_n_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     hgu133plus2GENENAME is an R object that maps manufacturer
     identifiers to the corresponding gene name.

_D_e_t_a_i_l_s:

     Each manufacturer identifier maps to a named vector containing the
     gene name. The vector name corresponds to the manufacturer
     identifier. If the gene name is unknown, the vector will contain
     an 'NA'.

     Gene names currently include both the official (validated by a
     nomenclature committee) and preferred names (interim selected for
     display) for genes. Efforts are being made to differentiate the
     two by adding a name to the vector.

     Mappings were based on data provided by: Entrez Gene (
     ftp://ftp.ncbi.nlm.nih.gov/gene/DATA ) on 2007-Aug23

_E_x_a_m_p_l_e_s:

             x <- hgu133plus2GENENAME
             # Get the probe identifiers that are mapped to a gene name
             mapped_probes <- mappedkeys(x)
             # Convert to a list
             xx <- as.list(x[mapped_probes])
             if(length(xx) > 0) {
               # Get the GENENAME for the first five probes
               xx[1:5]
               # Get the first one
               xx[[1]]
             }

