Evidence map›Paper›PMID 1631143›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1992

Molecular basis of AMP deaminase deficiency in skeletal muscle.

T Morisaki, M Gross, H Morisaki, D Pongratz, N Zöllner, E W Holmes

Open access · greenAbstract readCase Reports
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 9% of its field
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

60 citing papers in PubMed, 2 syntheses or guidelines pooled it, 211 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Does theGenes · 2026
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  18. [Muscle weakness and CK elevation: is it myositis?]Zeitschrift fur Rheumatologie · 2020
    Article
  19. Genes · 2020
    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

6 authors at 1 institution in 2 countries.

T MorisakiDepartment of Medicine, Duke University Medical Center, Durham, NC 27706.
M Gross
H Morisaki
D Pongratz
N Zöllner
E W Holmes
Duke University · US

Funding

PURINE METABOLISM:NUCLEOTIDE SYNTHESIS &INTERCONVERSIONR01DK012413 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI HOLMES, EDWARD W · 1986 to 1999
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PATHOGENISIS OF AMP DEAMINASE DEFICIENCYR37DK012413 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI HOLMES, EDWARD W · 1989 to 1996
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NIDDK NIH HHS DK-12413
6 · The paper itself

Abstract

AMP deaminase (AMPD; EC 3.5.4.6) is encoded by a multigene family in mammals. The AMPD1 gene is expressed at high levels in skeletal muscle, where this enzyme is thought to play an important role in energy metabolism. Deficiency of AMPD activity in skeletal muscle is associated with symptoms of a metabolic myopathy. Eleven unrelated individuals with AMPD deficiency were studied, and each was shown to be homozygous for a mutant allele characterized by a C----T transition at nucleotide 34 (codon 12 in exon 2) and at nucleotide 143 (codon 48 in exon 3). The C----T transition at codon 12 results in a nonsense mutation predicting a severely truncated AMPD peptide. Consistent with this prediction, no immunoreactive AMPD1 peptide is detectable in skeletal muscle of these patients. This mutant allele is found in 12% of Caucasians and 19% of African-Americans, whereas none of the 106 Japanese subjects surveyed has this mutant allele. We conclude from these studies that this mutant allele is present at a sufficiently high frequency to account for the 2% reported incidence of AMPD deficiency in muscle biopsies. The restricted distribution and high frequency of this doubly mutated allele suggest it arose in a remote ancestor of individuals of Western European descent.

Indexed as

AMP DeaminaseBase SequenceDNA Mutational AnalysisFemaleGene ExpressionHumansMolecular Sequence DataMusclesOligodeoxyribonucleotidesPolymerase Chain ReactionRNA, MessengerAMP DeaminaseOligodeoxyribonucleotidesRNA, Messenger

Identifiers

PMID1631143
PMCPMC49520
OpenAlexW1974508904

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.