Evidence map›Paper›PMID 16751610›Full record

ArticleProtein science : a publication of the Protein Society2006

Native state energetics of the Src SH2 domain: evidence for a partially structured state in the denatured ensemble.

David Wildes, L Meadow Anderson, Alex Sabogal, Susan Marqusee

Open access · bronzeAbstract read
In one paragraph

Article in Protein science : a publication of the Protein Society, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 28 citations in OpenAlex.

  1. SH2 Domains: Folding, Binding and Therapeutical Approaches.International journal of molecular sciences · 2022
    Review
  2. Article
  3. Characterization of early and late transition states of the folding pathway of a SH2 domain.Protein science : a publication of the Protein Society · 2022
    Article
  4. Determining folding and binding properties of the C-terminal SH2 domain of SHP2.Protein science : a publication of the Protein Society · 2021
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Anatomy of energetic changes accompanying urea-induced protein denaturation.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  13. 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 at 1 institution in 1 country.

David WildesDepartment of Molecular and Cell Biology, University of California, Berkeley 94720-3206, USA.
L Meadow Anderson
Alex Sabogal
Susan Marqusee
University of California, Berkeley · US

Funding

Sequence and Environmental Determinants of the Protein Energy LandscapeR01GM050945 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI MARQUSEE, SUSAN · 1999 to 2022
$7.4M
FOLDING OF THE ACID STATE, SUBDOMAINS AND INTACT RNASE HR29GM050945 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI MARQUSEE, SUSAN · 1994 to 1998
–
NIGMS NIH HHS GM50945NIGMS NIH HHS R01 GM050945
6 · The paper itself

Abstract

We have defined the free-energy profile of the Src SH2 domain using a variety of biophysical techniques. Equilibrium and kinetic experiments monitored by tryptophan fluorescence show that Src SH2 is quite stable and folds rapidly by a two-state mechanism, without populating any intermediates. Native state hydrogen-deuterium exchange confirms this two-state behavior; we detect no cooperative partially unfolded forms in equilibrium with the native conformation under any conditions. Interestingly, the apparent stability of the protein from hydrogen exchange is 2 kcal/mol greater than the stability determined by both equilibrium and kinetic studies followed by fluorescence. Native-state proteolysis demonstrates that this "super protection" does not result from a deviation from the linear extrapolation model used to fit the fluorescence data. Instead, it likely arises from a notable compaction in the unfolded state under native conditions, resulting in an ensemble of conformations with substantial solvent exposure of side chains and flexible regions sensitive to proteolysis, but backbone amides that exchange with solvent approximately 30-fold slower than would be expected for a random coil. The apparently simple behavior of Src SH2 in traditional unfolding studies masks the significant complexity present in the denatured-state ensemble.

Indexed as

src Homology DomainsAnimalsChickensCSK Tyrosine-Protein KinaseDeuterium Exchange MeasurementKineticsProtein ConformationProtein DenaturationProtein FoldingProtein-Tyrosine KinasesSpectrometry, Fluorescencesrc-Family KinasesThermodynamicsTryptophanUreaCSK Tyrosine-Protein KinaseProtein-Tyrosine Kinasessrc-Family KinasesTryptophanUrea

Identifiers

PMID16751610
PMCPMC2242571
OpenAlexW1996269412

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.