Evidence map›Paper›PMID 8644711›Full record

ArticleAmerican journal of human genetics1996

FMR1 in global populations.

C B Kunst, C Zerylnick, L Karickhoff, E Eichler, J Bullard, M Chalifoux, J J Holden, A Torroni, D L Nelson, S T Warren

Abstract read
In one paragraph

Article in American journal of human genetics, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. CGG repeat length and AGG interruptions as indicators of fragile X-associated diminished ovarian reserve.Genetics in medicine : official journal of the American College of Medical Genetics · 2018
    Article
  6. Article
  7. Article
  8. Article
  9. AGG interruptions within the maternal FMR1 gene reduce the risk of offspring with fragile X syndrome.Genetics in medicine : official journal of the American College of Medical Genetics · 2012
    Article
  10. Article
  11. Review
  12. Article
  13. FMR1 gray-zone alleles: association with Parkinson's disease in women?Movement disorders : official journal of the Movement Disorder Society · 2011
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

C B KunstHoward Hughes Medical Institute, Departments of Biochemistry and Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA.
C Zerylnick
L Karickhoff
E Eichler
J Bullard
M Chalifoux
J J Holden
A Torroni
D L Nelson
S T Warren

Funding

MOLECULAR CLONING OF THE FRAGILE X SITER01HD020521 · NICHD · EMORY UNIVERSITY · PI WARREN, STEPHEN T. · 1986 to 2011
$2.8M
MOLECULAR CLONING OF THE FRAGILE X SITER37HD020521 · NICHD · EMORY UNIVERSITY · PI WARREN, STEPHEN T. · 1996 to 2005
$1.7M
MOLECULAR ANALYSIS OF FRAGILE X SYNDROMER01HD029256 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI NELSON, DAVID LOREN · 1992 to 2002
$941k
NICHD NIH HHS HD20521NICHD NIH HHS HD29256
6 · The paper itself

Abstract

Fragile X syndrome, a frequent form of inherited mental retardation, results from the unstable expansion of a cryptic CGG repeat within the 5' UTR region of the FMR1 gene. The CGG repeat is normally polymorphic in length, and the content is frequently interrupted by AGG triplets. These interruptions are believed to stabilize the repeat, and their absence, leading to long tracts of perfect CGG repeats, may give rise to predisposed alleles. In order to examine the stability of normal FMR1 alleles, the repeat length of 345 chromosomes from nine global populations was examined with the content also determined from 114 chromosomes as assessed by automated DNA sequencing. The FMR1 alleles, defined by the CGG repeat, as well as by the haplotypes of nearby polymorphic loci, were very heterogeneous, although the level of variation correlated with the age and/or genetic history of a particular population. Native American alleles, interrupted by three AGG repeats, exhibited marked stability over 7,000 years. However, in older African populations, parsimony analysis predicts the occasional loss of an AGG, leading to more perfect CGG repeats. These data therefore support the suggestion that AGG interruptions enhance the stability of the FMR1 repeat and indicate that the rare loss of these interruptions leads to alleles with longer perfect CGG-repeat tracts.

Indexed as

RNA-Binding ProteinsTrinucleotide RepeatsAllelesBase SequenceFragile X Messenger Ribonucleoprotein 1Fragile X SyndromeGene FrequencyHaplotypesHumansMaleMolecular Sequence DataNerve Tissue ProteinsPhylogenyPolymorphism, GeneticRacial GroupsSequence Analysis, DNAFMR1 protein, humanFragile X Messenger Ribonucleoprotein 1Nerve Tissue ProteinsRNA-Binding Proteins

Identifiers

PMID8644711
PMCPMC1914573

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.