Cited by 109Genetic Syndromes and ImprintingGenomic variations and chromosomal abnormalitiesGenetics and Neurodevelopmental Disorders

Allele-specific expression analysis by RNA-FISH demonstrates preferential maternal expression of UBE3A and imprint maintenance within 15q11- q13 duplications

Herzing, L. B.K.·2002·Human Molecular Genetics

Abstract

15q11- q13 contains many imprinted genes, and undergoes duplicon-mediated rearrangements, including deletions, duplications and triplications, and generation of marker chromosomes. Abnormal phenotypes, including language delays and autism spectrum disorders, are primarily observed with maternal 15q11- q13 duplication. To determine possible epigenetic effects on expression within duplicated 15q11- q13 regions, we utilized RNA-FISH to directly observe gene expression. RNA-FISH, unlike RT-PCR, is polymorphism-independent, and it also detects relative levels of expression at each allele. Unamplified, gene-specific RNA signals were detected using cDNA probes. Subsequent DNA-FISH confirmed RNA signals and assigned parental origin by colocalization of genomic probes. SNRPN and NDN expression was detected primarily from paternal alleles. Control Dystrobrevin transcripts were detected equally from both alleles; however, maternal-UBE3A signals were consistently larger than paternal signals in normal fibroblasts and in neural-precursor cells. Larger UBE3A signals were also observed on one or both maternal alleles in a cell line carrying a maternal interstitial duplication, on both alleles of a maternally derived marker(15) chromosome, and occasionally on a paternal allele in a cell line carrying a paternal interstitial duplication. Expression of NDNL2, just distal to the duplicated region, was not markedly altered but paralleled changes in UBE3A expression. Excess total maternal-UBE3A RNA was confirmed by Northern blot analysis of cell lines carrying 15q11- q13 duplications or triplications. These results demonstrate that: (1) UBE3A is imprinted in fibroblasts, lymphoblasts and neural-precursor cells; (2) allelic imprint status is maintained in the majority of cells upon duplication both in cis and in trans; and (3) alleles on specific types of duplications may exhibit an increase in expression levels/loss of expression constraints.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1093/hmg/11.15.1707

Cites

62 of 62 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Maternal duplications of the 15q11-13 locus lead to increased expression of UBE3A and epigenetic silencing of the paternal antisense transcript, UBE3A-ATS.

    “Maternal duplications of the 15q11–13 locus lead to increased expression of UBE3A and epigenetic silencing of the paternal antisense transcript, UBE3A-ATS121–124.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Herzing, L. B. K.
Affiliations
University of Chicago (US)
Corresponding author
Herzing, L. B.K.
Venue
Human Molecular Genetics
Published
2002-07-15
Volume
11
Issue
15
Pages
1707-1718
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2113463790
Cited by
109
References
62
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 2 · 2014: 4 · 2013: 6 · 2012: 5
FWCI
3.55
Type
journal article
Language
en
Open access
closed
Locations
  • Human Molecular Genetics (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01hd036111-03, 5k02mh001389-03, 5r01mh052223-05, NOI-HD-8-3284)
  • National Institute of Mental Health (R01 MH52223, K02MH01389)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (N01-HD-8-3284, R01 HD36111)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
UBE3A, genomic imprinting, allele-specific expression, maternal expression, SNRPN, NDN, neural progenitor cells, fibroblasts, autism spectrum disorder, language delay
MeSH terms
Autoantigens, Chromosomes, Human, Pair 15, Female, Fibroblasts, Humans, Ligases, Male, RNA, Blotting, Northern, Gene Expression, In Situ Hybridization, Fluorescence, Ribonucleoproteins, Small Nuclear, Genomic Imprinting, Gene Duplication, Ubiquitin-Protein Ligases, snRNP Core Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review