hgu95av2PATH package:hgu95av2 R Documentation _M_a_p_p_i_n_g_s _b_e_t_w_e_e_n _p_r_o_b_e _i_d_e_n_t_i_f_i_e_r_s _a_n_d _K_E_G_G _p_a_t_h_w_a_y _i_d_e_n_t_i_f_i_e_r_s _D_e_s_c_r_i_p_t_i_o_n: KEGG (Kyoto Encyclopedia of Genes and Genomes) maintains pathway data for various organisms. hgu95av2PATH maps probe identifiers to the identifiers used by KEGG for pathways in which the genes represented by the probe identifiers are involved _D_e_t_a_i_l_s: Each KEGG pathway has a name and identifier. Pathway name for a given pathway identifier can be obtained using the KEGG data package that can either be built using AnnBuilder or downloaded from Bioconductor . Graphic presentations of pathways are searchable at url{http://www.genome.ad.jp/kegg/pathway.html} by using pathway identifiers as keys. Mappings were based on data provided by: KEGG:. Built: Release 38.1, June 1, 2006 Entrez Gene:. Built: Source data downloaded from Entrez Gene on Mon Sep 25 20:44:56 2006 Package built Mon Sep 25 21:08:05 2006 _R_e_f_e_r_e_n_c_e_s: _E_x_a_m_p_l_e_s: # Convert the environment to a list xx <- as.list(hgu95av2PATH) # Remove probe identifiers that do not map to any pathway id xx <- xx[!is.na(xx)] if(length(xx) > 0){ # The pathway identifiers for the first two elements of XX xx[1:2] # Get the first one xx[[1]] }