title: Prediction of three different isoforms of the human UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase.
abstract: The bifunctional enzyme UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase (GNE) is the key enzyme of the biosynthesis of sialic acids, terminal components of glycoconjugates associated with a variety of cellular processes. Two novel isoforms of human GNE, namely GNE2 and GNE3, which possess extended and deleted N-termini, respectively, were characterized. GNE2 was also found in other species like apes, rodents, chicken or fish, whereas GNE3 seems to be restricted to primates. Both, GNE2 and GNE3, displayed tissue specific expression patterns, therefore may contribute to the complex regulation of sialic acid metabolism.
authors.affiliation: Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Institut für Biochemie und Molekularbiologie, Arnimallee 22, Berlin-Dahlem, Germany.
authors.forename: Stefan O
authors.initials: SO
authors.lastname: Reinke
authors.forename: Stephan
authors.initials: S
authors.lastname: Hinderlich
mesh_terms: D017398:Alternative Splicing; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002238:Carbohydrate Epimerases / Q000235:genetics / Q000378:metabolism; D006801:Humans; D007527:Isoenzymes / Q000235:genetics / Q000378:metabolism; D051379:Mice; D008969:Molecular Sequence Data; D017853:Phosphotransferases (Alcohol Group Acceptor) / Q000235:genetics* / Q000378:metabolism; D014018:Tissue Distribution
chemical_list: D007527:Isoenzymes; D017853:Phosphotransferases (Alcohol Group Acceptor); C018765:N-acylmannosamine kinase; D002238:Carbohydrate Epimerases; C100033:UDP acetylglucosamine-2-epimerase