title: Isolation and chromosomal mapping of human glycogen synthase kinase-3 alpha and -3 beta encoding genes.
abstract: Glycogen synthase kinase-3 (GSK-3) is a serine-threonine kinase that exists as two isoforms, alpha and beta, encoded by separate genes. Phosphorylation targets include a variety of cytoplasmic and nuclear proteins. Recent studies found that neurofilaments, amyloid precursor protein, and tau proteins are substrates of GSK-3 and that aberrant phosphorylation of these proteins is implicated in pathologies of the nervous system. To analyse the organisation of these two genes, a YAC library was screened by polymerase chain reaction, using primers specific for human GSK-3 alpha and GSK-3 beta cDNA. Two clones, 220 and 285 kb in size, containing the complete GSK-3 alpha coding sequence, and two clones, 365 and 285 kb in size, containing the 5' coding sequence of GSK-3 beta, were isolated. By somatic cell hybrid panel DNA amplification and radiation hybrid mapping, GSK-3 alpha was found to be located at 19q13.2. On the other hand, by somatic cell hybrid panel DNA amplification and fluorescence in situ hybridisation using the 285-kb YAC clone, GSK-3 beta was mapped to 3q13.3.
authors.affiliation: Department of Biochemistry, Chinese University of Hong Kong, Shatin, NT, Hong Kong. pcshaw@cuhk.edu.hk
authors.forename: P C
authors.initials: PC
authors.lastname: Shaw
authors.forename: A F
authors.initials: AF
authors.lastname: Davies
authors.forename: K F
authors.initials: KF
authors.lastname: Lau
authors.forename: M
authors.initials: M
authors.lastname: Garcia-Barcelo
authors.forename: M M
authors.initials: MM
authors.lastname: Waye
authors.forename: S
authors.initials: S
authors.lastname: Lovestone
authors.forename: C C
authors.initials: CC
authors.lastname: Miller
authors.forename: B H
authors.initials: BH
authors.lastname: Anderton
mesh_terms: D000818:Animals; D001483:Base Sequence; D017871:Calcium-Calmodulin-Dependent Protein Kinases / Q000235:genetics*; D002874:Chromosome Mapping; D018244:Chromosomes, Artificial, Yeast / Q000235:genetics; D002888:Chromosomes, Human, Pair 19 / Q000235:genetics; D002893:Chromosomes, Human, Pair 3 / Q000235:genetics; D003001:Cloning, Molecular; D006224:Cricetinae; D017931:DNA Primers / Q000235:genetics; D038362:Glycogen Synthase Kinase 3; D038341:Glycogen Synthase Kinases; D006801:Humans; D006822:Hybrid Cells; D017404:In Situ Hybridization, Fluorescence; D007527:Isoenzymes / Q000235:genetics*; D051379:Mice; D016133:Polymerase Chain Reaction
chemical_list: D017931:DNA Primers; D007527:Isoenzymes; D038341:Glycogen Synthase Kinases; D017871:Calcium-Calmodulin-Dependent Protein Kinases; D038362:Glycogen Synthase Kinase 3