title: Reverse genetics of essential genes in tissue-culture cells: 'dead cells talking'.
abstract: In the 'post-genomic' era, cDNA and genomic sequences are now available that encode huge numbers of proteins. Assigning functions to these proteins is a daunting task. Cell biologists have traditionally approached this problem by disrupting protein function with dominant-negative or structural mutants. Here, we describe several alternative approaches whereby cells or cell lines lacking particular gene products can be generated from genomic sequences for use in functional studies. These include gene targeting in mouse, human and chicken DT40 cells, and recent advances in double-stranded RNA-mediated interference (RNAi).
authors.affiliation: Wellcome Trust Centre for Cell Biology, ICMB, Swann Building, University of Edinburgh, UK.
authors.forename: Damien F
authors.initials: DF
authors.lastname: Hudson
authors.forename: Ciaran
authors.initials: C
authors.lastname: Morrison
authors.forename: Sandrine
authors.initials: S
authors.lastname: Ruchaud
authors.forename: William C
authors.initials: WC
authors.lastname: Earnshaw
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000378:metabolism; D017353:Gene Deletion; D020868:Gene Silencing; D018390:Gene Targeting / Q000379:methods*; D020043:Genes, Essential / Q000235:genetics*; D005804:Genes, Lethal / Q000235:genetics; D006801:Humans; D016297:Mutagenesis, Site-Directed / Q000235:genetics*; D034741:RNA, Small Interfering; D022661:RNA, Untranslated / Q000235:genetics / Q000378:metabolism; D013234:Stem Cells / Q000378:metabolism
chemical_list: D034741:RNA, Small Interfering; D022661:RNA, Untranslated