Evidence map›Paper›PMID 21913686›Full record

ArticleJournal of the American Chemical Society2011

The biological buffer bicarbonate/CO2 potentiates H2O2-mediated inactivation of protein tyrosine phosphatases.

Haiying Zhou, Harkewal Singh, Zachary D Parsons, Sarah M Lewis, Sanjib Bhattacharya, Derrick R Seiner, Jason N LaButti, Thomas J Reilly, John J Tanner, Kent S Gates

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

35 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
  2. Protein oxidation in crowded environments.The Biochemical journal · 2026
    Review
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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

10 authors at 1 institution in 1 country.

Haiying ZhouDepartment of Chemistry, University of Missouri, Columbia, Missouri 65211, United States.
Harkewal Singh
Zachary D Parsons
Sarah M Lewis
Sanjib Bhattacharya
Derrick R Seiner
Jason N LaButti
Thomas J Reilly
John J Tanner
Kent S Gates
University of Missouri · US

Funding

DNA ALKYLATION BY THE ANTITUMOR ANTIBIOTIC LEINAMYCINR01CA083925 · NCI · UNIVERSITY OF MISSOURI-COLUMBIA · PI GATES, KENT S · 2000 to 2009
$1.6M
Chemical and Biological Mechanisms of LeinamycinR01CA119131 · NCI · UNIVERSITY OF MISSOURI-COLUMBIA · PI GATES, KENT S · 2006 to 2010
$1.3M
From Clinic to Bench & Back: Clinical Biodetective Training (RMI)R90DK071510 · NIDDK · UNIVERSITY OF MISSOURI-COLUMBIA · PI MILANICK, MARK A · 2004 to 2008
$924k
NCI NIH HHS CA83925NCI NIH HHS R01 CA083925NCI NIH HHS R01 CA119131NIDDK NIH HHS DK071510NIDDK NIH HHS R90 DK071510
6 · The paper itself

Abstract

Hydrogen peroxide is a cell signaling agent that inactivates protein tyrosine phosphatases (PTPs) via oxidation of their catalytic cysteine residue. PTPs are inactivated rapidly during H(2)O(2)-mediated cellular signal transduction processes, but, paradoxically, hydrogen peroxide is a rather sluggish PTP inactivator in vitro. Here we present evidence that the biological buffer bicarbonate/CO(2) potentiates the ability of H(2)O(2) to inactivate PTPs. The results of biochemical experiments and high-resolution crystallographic analysis are consistent with a mechanism involving oxidation of the catalytic cysteine residue by peroxymonocarbonate generated via the reaction of H(2)O(2) with HCO(3)(-)/CO(2).

Indexed as

BicarbonatesBuffersCarbon DioxideEnzyme ActivationHumansHydrogen PeroxideModels, MolecularOxidation-ReductionProtein Tyrosine Phosphatase, Non-Receptor Type 1BicarbonatesBuffersCarbon DioxideHydrogen PeroxideProtein Tyrosine Phosphatase, Non-Receptor Type 1PTPN1 protein, human

Identifiers

PMID21913686
PMCPMC3268130
OpenAlexW1985963784

What OpenQuestion holds

Textmetadata
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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.