title: Preparation of mRNA for expression monitoring.
abstract: The ability to construct comprehensive gene expression profiles comprising hundreds to thousands of genes whose RNA levels are monitored simultaneously represents an exciting new capability in molecular biology. This is accomplished by hybridizing mRNA, which has been quantitatively amplified and labeled with biotin, to DNA chips that display thousands of nucleotides complementary to the mRNAs of interest. In this unit, rationale for starting with poly(A(+)) vs. total RNA is discussed, and strategies for choosing oligonucleotides for chip design is presented. Protocols on RNA amplification and labeling, and purifying and quantifying the cDNA and in vitro transcription products are included.
authors.affiliation: Genetics Institute, Cambridge, Massachusetts, USA.
authors.forename: M C
authors.initials: MC
authors.lastname: Byrne
authors.forename: M Z
authors.initials: MZ
authors.lastname: Whitley
authors.forename: M T
authors.initials: MT
authors.lastname: Follettie
mesh_terms: D017931:DNA Primers; D015870:Gene Expression; D009693:Nucleic Acid Hybridization / Q000379:methods; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods; D012313:RNA / Q000235:genetics; D012333:RNA, Messenger / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D017931:DNA Primers; D012333:RNA, Messenger; D012313:RNA