title: Organization and chromosomal mapping of mouse Gh/tissue transglutaminase gene (Tgm2).
abstract: The mouse Gh/tissue transglutaminase gene (Tgm2), coding a dual-function protein that both binds guanosine triphosphate (GTP) and catalyzes the posttranslational modification of proteins by transamidation of glutamine residues, has been cloned. Sequence analysis of Tgm2 and comparison with the TGase sequences of other species allowed correction of several apparent sequencing artifacts in the Tgm2 cDNA. Tgm2 spans approximately 34 kb and has 13 exons and 12 introns. Although the structure of Tgm2 shows similarity to that of other transglutaminase genes, with introns ranging from 921 bp to >5 kb, several introns differ considerably in size from those of the human Gh gene, TGM2. Tgm2 maps to the distal region of mouse chromosome 2, a region syntenic to human chromosome 20q containing TGM2. Tgm2 is in the vicinity of two uncloned mouse mutations, diminutive (dm) and blind-sterile (bs). Genomic DNA from dm mice was unavailable; however, Southern blot analysis of bs DNA showed no gross rearrangements of Tgm2.
authors.affiliation: Molecular Cardiology Unit, Victor Chang Cardiac Research Institute, 384 Victoria Street, Darlinghurst, New South Wales, 2010, Australia.
authors.forename: N
authors.initials: N
authors.lastname: Nanda
authors.forename: S E
authors.initials: SE
authors.lastname: Iismaa
authors.forename: N G
authors.initials: NG
authors.lastname: Copeland
authors.forename: D J
authors.initials: DJ
authors.lastname: Gilbert
authors.forename: N
authors.initials: N
authors.lastname: Jenkins
authors.forename: R M
authors.initials: RM
authors.lastname: Graham
authors.forename: P
authors.initials: P
authors.lastname: Sutrave
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003433:Crosses, Genetic; D005091:Exons; D005260:Female; D020558:GTP Phosphohydrolases / Q000235:genetics*; D019204:GTP-Binding Proteins / Q000235:genetics*; D015698:Genomic Library; D007438:Introns; D008297:Male; D051379:Mice; D008969:Molecular Sequence Data; D009097:Multienzyme Complexes / Q000235:genetics*; D000091345:Protein Glutamine gamma Glutamyltransferase 2; D015183:Restriction Mapping; D013045:Species Specificity; D011503:Transglutaminases / Q000235:genetics*
chemical_list: D009097:Multienzyme Complexes; C000717608:TGM2 protein, human; D000091345:Protein Glutamine gamma Glutamyltransferase 2; D011503:Transglutaminases; D020558:GTP Phosphohydrolases; D019204:GTP-Binding Proteins