drosophila2UNIGENE        package:drosophila2        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_e_n_t_i_f_i_e_r_s _a_n_d _U_n_i_G_e_n_e _c_l_u_s_t_e_r _i_d_e_n_t_i_f_i_e_r_s

_D_e_s_c_r_i_p_t_i_o_n:

     drosophila2UNIGENE is an R environment that provides mappings
     between manufacturer identifiers and UniGene identifiers.

_D_e_t_a_i_l_s:

     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:\<URL: ftp://ftp.ncbi.nlm.nih.gov/gene/DATA/>. Built:
     Source data downloaded from Entrez Gene on Thu Mar 15 17:54:57
     2007

     Package built Thu Mar 15 18:00:58 2007

_R_e_f_e_r_e_n_c_e_s:

     <URL: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene>

_E_x_a_m_p_l_e_s:

         # Convert the environment to a list
         xx <- as.list(drosophila2UNIGENE)
         # Remove probe identifiers that do no map to any UniGene id
         xx <- xx[!is.null(xx)]
         if(length(xx) > 0){
             # The UniGene identifiers for the first two elements of XX
             xx[1:2]
             # Get the first one
             xx[[1]]
         }

