ecoli                 package:lemma                 R Documentation

_T_h_e _E_s_c_h_e_r_i_c_h_i_a _c_o_l_i _d_a_t_a (_H_u_n_g _e_t _a_l., _2_0_0_2)

_D_e_s_c_r_i_p_t_i_o_n:

     The Leucine-responsive regulatory protein (Lrp) data analyzed by
     Hung et al. consists of 2,758 genes, with 4 replicates in each
     treatment group.  The experimental design for the Affymetrix
     GeneChip experiments is as follows: four GeneChips were hybridized
     with biotin-labeled RNA pools 1-3, 4-6, 7-9, and 10-12 prepared
     from lrp+ cells, and four GeneChips were hybridized with
     biotin-labeled RNA pools 1-3, 4-6, 7-9, and 10-12 prepared from
     lrp- cells, respectively. One average difference measurement for
     each gene probe set on each GeneChip was obtained for subsequent
     data processing and analysis.  The normalized data was downloaded
     from 
      http://www.jbc.org/cgi/content/full/277/43/40309/DC1 and was
     further transformed by taking the log2 of the responses.

_U_s_a_g_e:

     ecoli

_F_o_r_m_a_t:

     A data frame containing 2,758 rows and 10 columns.  The first
     column contains the gene IDs, the second column contains the gene
     names.  Columns 3-6 contain the reponses for the 4 control
     samples, and columns 7-10 contain the reponses for the 4 treatment
     samples.

_R_e_f_e_r_e_n_c_e_s:

     Hung, S. P., Baldi, P. & Hatfield, G. W. (2002). Global gene
     expression profiling in Escherichia coli K12. The effects of
     leucine-responsive regulatory protein. J Biol Chem 277,
     40309-40323

