Evidence map›Paper›PMID 22355138›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

The molten globule state is unusually deformable under mechanical force.

Phillip J Elms, John D Chodera, Carlos Bustamante, Susan Marqusee

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing 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

48 citing papers in PubMed.

  1. Multivalent weak contacts shape chaperone-nascent protein interactions.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  11. Molten globule-like transition state of protein barnase measured with calorimetric force spectroscopy.Proceedings of the National Academy of Sciences of the United States of America · 2022
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  20. Switching of the folding-energy landscape governs the allosteric activation of protein kinase A.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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

4 authors.

Phillip J ElmsBiophysics Graduate Group, California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, CA 94720-3220, USA.
John D Chodera
Carlos Bustamante
Susan Marqusee

Funding

Sequence and Environmental Determinants of the Protein Energy LandscapeR01GM050945 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI MARQUSEE, SUSAN · 1999 to 2022
$7.4M
Howard Hughes Medical InstituteNIGMS NIH HHS R01 GM050945
6 · The paper itself

Abstract

Recently, the role of force in cellular processes has become more evident, and now with advances in force spectroscopy, the response of proteins to force can be directly studied. Such studies have found that native proteins are brittle, and thus not very deformable. Here, we examine the mechanical properties of a class of intermediates referred to as the molten globule state. Using optical trap force spectroscopy, we investigated the response to force of the native and molten globule states of apomyoglobin along different pulling axes. Unlike natively folded proteins, the molten globule state of apomyoglobin is compliant (large distance to the transition state); this large compliance means that the molten globule is more deformable and the unfolding rate is more sensitive to force (the application of force or tension will have a more dramatic effect on the unfolding rate). Our studies suggest that these are general properties of molten globules and could have important implications for mechanical processes in the cell.

Indexed as

AlgorithmsApoproteinsBayes TheoremBiochemistryHydrogen-Ion ConcentrationMarkov ChainsMicroscopy, Atomic ForceMutationMyoglobinOptical TweezersPlasmidsProtein ConformationProtein DenaturationProtein FoldingProtein Structure, TertiaryStress, MechanicalapomyoglobinApoproteinsMyoglobin

Identifiers

PMID22355138
PMCPMC3309780

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.