title: Imprinting of a small nucleolar RNA gene on mouse chromosome 12.
abstract: We have identified a novel, maternally expressed imprinted gene encoding a C/D-box small nucleolar RNA (snoRNA) called MBII-343, which may regulate RNA editing or alternative splicing of an as yet unknown target gene. This gene is closely linked to an imprinted gene, Meg3, on mouse distal chromosome 12, which is syntenic to human chromosome 14. The paternal duplication of mouse distal chromosome 12 leads to late embryonal/neonatal lethality, growth promotion, and cardiomyopathy, whereas maternal duplication leads to late embryonal lethality and growth retardation. Human paternal uniparental disomy for chromosome 14 leads to musculoskeletal problems and mental retardation, whereas maternal uniparental disomy leads to intrauterine growth retardation, motor developmental delay, premature puberty, hypotonia, joint laxity, macrocephaly, short statue, neonatal poor sucking, skill with jigsaw puzzles, skin picking, obesity, and maturity onset diabetes of the young.
authors.affiliation: Gene Research Center, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Shimoda
authors.forename: Sumiyo
authors.initials: S
authors.lastname: Morita
authors.forename: Yayoi
authors.initials: Y
authors.lastname: Obata
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Sotomaru
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Kono
authors.forename: Izuho
authors.initials: I
authors.lastname: Hatada
mesh_terms: D000818:Animals; D001483:Base Sequence; D002883:Chromosomes, Human, Pair 14; D018392:Genomic Imprinting; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D020537:RNA, Small Nucleolar / Q000235:genetics*; D017422:Sequence Analysis, DNA
chemical_list: D020537:RNA, Small Nucleolar