Cited by 62Pancreatic function and diabetesIon channel regulation and functionCardiac electrophysiology and arrhythmias

The Common Single Nucleotide Polymorphism E23K in KIR6.2 Sensitizes Pancreatic β-Cell ATP-Sensitive Potassium Channels Toward Activation Through Nucleoside Diphosphates

Open access
Schwanstecher, Christina, Neugebauer, Bettina, Schulz, Miriam, Schwanstecher, Mathias·2002·Diabetes

Abstract

E23K, a common polymorphism in the pore-forming subunit KIR6.2 of pancreatic β-cell ATP-sensitive K+ (KATP) channels, is functionally relevant and thus might play a major role in the pathophysiology of common type 2 diabetes. In this study, we show that in the simultaneous presence of activatory and inhibitory nucleotides, the polymorphism exerts opposite effects on the potencies of these modulators: channel opening through nucleoside diphosphates is facilitated, whereas sensitivity toward inhibition through ATP is slightly decreased. The results support the conclusion that E23K predisposes to type 2 diabetes by changing the channel’s response to physiological variation of cytosolic nucleotides, resulting in KATP overactivity and discrete inhibition of insulin release.

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 · 10.2337/diabetes.51.2007.s363

Cites

28 of 28 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?

  • A common variant in Kir6.2 (E23K) is associated with a slightly increased risk of T2DM, but its effects on KATP channel activity and insulin secretion are very small and controversial.

    “Finally, a common variant in Kir6.2 (E23K) is associated with a slightly increased risk of T2DM (216, 586). While its effects on KATP channel activity (604, 605) and insulin secretion (696) are very small (585) and controversial (552), it is important to note that even a tiny increase in channel activity can lead to ND (705).”

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
Schwanstecher, C., Neugebauer, B., Schulz, M., & Schwanstecher, M.
Affiliations
Technische Universität Braunschweig (DE)
Venue
Diabetes
Published
2002-12-01
Volume
51
Issue
suppl_3
Pages
S363-S367
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2164720600
Cited by
62
References
28
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2021: 1 · 2018: 2 · 2017: 4 · 2016: 4 · 2015: 3 · 2014: 2 · 2013: 3 · 2012: 1
FWCI
5.08
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion channel regulation and function
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
Kir6.2, E23K polymorphism, ATP-sensitive potassium channels, pancreatic beta cells, nucleoside diphosphates, ATP, insulin secretion
MeSH terms
Adenosine Diphosphate, Adenosine Triphosphate, Animals, Guanosine Diphosphate, Humans, Islets of Langerhans, Molecular Sequence Data, Potassium Channels, COS Cells, Polymorphism, Single Nucleotide, Potassium Channels, Inwardly Rectifying

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