Evidence map›Paper›PMID 23383060›Full record

ArticlePloS one2013

Functional consequences of a novel variant of PCSK1.

Lindsay A Pickett, Michael Yourshaw, Valeria Albornoz, Zijun Chen, R Sergio Solorzano-Vargas, Stanley F Nelson, Martín G Martín, Iris Lindberg

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
2.8field-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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Lindsay A PickettDepartment of Anatomy and Neurobiology, University of Maryland-Baltimore, Baltimore, MD, USA.
Michael Yourshaw
Valeria Albornoz
Zijun Chen
R Sergio Solorzano-Vargas
Stanley F Nelson
Martín G Martín
Iris Lindberg
Mattel Children's Hospital · USUniversity of Maryland, Baltimore · USUniversity of California, Los Angeles · US

Funding

Pilot and Feasibility ProgramP30DK041301 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ROZENGURT, JUAN ENRIQUE · 1990 to 2019
$18.0M
OPIOID PEPTIDE SYNTHESIZING ENZYMESR01DA005084 · NIDA · UNIVERSITY OF MARYLAND BALTIMORE · PI LINDBERG, IRIS · 1988 to 2014
$4.4M
Neurogenin3 and Intestinal FailureR01DK083762 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MARTIN, MARTIN G · 2009 to 2012
$1.6M
Opioid Peptide Synthesizing EnzymesR56DA005084 · NIDA · UNIVERSITY OF MARYLAND BALTIMORE · PI LINDBERG, IRIS · 2016 to 2016
$174k
NIDA NIH HHS DA05084NIDA NIH HHS R01 DA005084NIDA NIH HHS R56 DA005084NIDDK NIH HHS DK083762NIDDK NIH HHS R01 DK083762
6 · The paper itself

Abstract

backgroundCommon single nucleotide polymorphisms (SNPs) in proprotein convertase subtilisin/kexin type 1 with modest effects on PC1/3 in vitro have been associated with obesity in five genome-wide association studies and with diabetes in one genome-wide association study. We here present a novel SNP and compare its biosynthesis, secretion and catalytic activity to wild-type enzyme and to SNPs that have been linked to obesity. METHODOLOGY/PRINCIPAL

findingsA novel PC1/3 variant introducing an Arg to Gln amino acid substitution at residue 80 (within the secondary cleavage site of the prodomain) (rs1799904) was studied. This novel variant was selected for analysis from the 1000 Genomes sequencing project based on its predicted deleterious effect on enzyme function and its comparatively more frequent allele frequency. The actual existence of the R80Q (rs1799904) variant was verified by Sanger sequencing. The effects of this novel variant on the biosynthesis, secretion, and catalytic activity were determined; the previously-described obesity risk SNPs N221D (rs6232), Q665E/S690T (rs6234/rs6235), and the Q665E and S690T SNPs (analyzed separately) were included for comparative purposes. The novel R80Q (rs1799904) variant described in this study resulted in significantly detrimental effects on both the maturation and in vitro catalytic activity of PC1/3. CONCLUSION/SIGNIFICANCE: Our findings that this novel R80Q (rs1799904) variant both exhibits adverse effects on PC1/3 activity and is prevalent in the population suggests that further biochemical and genetic analysis to assess its contribution to the risk of metabolic disease within the general population is warranted.

Indexed as

Polymorphism, Single NucleotideBiocatalysisDatabases, GeneticDiabetes MellitusFemaleHumansNeuropeptidesObesitySequence Analysis, DNAStructure-Activity RelationshipNeuropeptidesPCSK1N protein, human

Identifiers

PMID23383060
PMCPMC3557230
OpenAlexW2019279672

What OpenQuestion holds

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LicenceCC BY
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.