Evidence map›Paper›PMID 12538887›Full record

ArticleProtein science : a publication of the Protein Society2003

Turn stability in beta-hairpin peptides: Investigation of peptides containing 3:5 type I G1 bulge turns.

Tamas Blandl, Andrea G Cochran, Nicholas J Skelton

Abstract read
In one paragraph

Article in Protein science : a publication of the Protein Society, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

17 citing papers in PubMed.

  1. Review
  2. Design of Peptides that Fold and Self-Assemble on Graphite.Journal of chemical information and modeling · 2022
    Article
  3. A systematic analysis of the beta hairpin motif in the Protein Data Bank.Protein science : a publication of the Protein Society · 2021
    Article
  4. De novo design of transmembrane β barrels.Science (New York, N.Y.) · 2021
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Structure-function-folding relationship in a WW domain.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
  11. Minimization and optimization of designed beta-hairpin folds.Journal of the American Chemical Society · 2006
    Article
  12. Article
  13. Hairpin folding rates reflect mutations within and remote from the turn region.Proceedings of the National Academy of Sciences of the United States of America · 2005
    Article
  14. Article
  15. Article
  16. Use of thiol-disulfide equilibria to measure the energetics of assembly of transmembrane helices in phospholipid bilayers.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  17. 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

3 authors.

Tamas BlandlDepartment of Protein Engineering, Genentech, South San Francisco, California 94080, USA.
Andrea G Cochran
Nicholas J Skelton

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The turn-forming ability of a series of three-residue sequences was investigated by substituting them into a well-characterized beta-hairpin peptide. The starting scaffold, bhpW, is a disulfide-cyclized 10-residue peptide that folds into a stable beta-hairpin with two antiparallel strands connected by a two-residue reverse turn. Substitution of the central two residues with the three-residue test sequences leads to less stable hairpins, as judged by thiol-disulfide equilibrium measurements. However, analysis of NMR parameters indicated that each molecule retains a significant folded population, and that the type of turn adopted by the three-residue sequence is the same in all cases. The solution structure of a selected peptide with a PDG turn contained an antiparallel beta-hairpin with a 3:5 type I + G1 bulge turn. Analysis of the energetic contributions of individual turn residues in the series of peptides indicates that substitution effects have significant context dependence, limiting the predictive power of individual amino acid propensities for turn formation. The most stable and least stable sequences were also substituted into a more stable disulfide-cyclized scaffold and a linear beta-hairpin scaffold. The relative stabilities remained the same, suggesting that experimental measurements in the bhpW context are a useful way to evaluate turn stability for use in protein design projects. Moreover, these scaffolds are capable of displaying a diverse set of turns, which can be exploited for the mimicry of protein loops or for generating libraries of reverse turns.

Indexed as

Amino Acid MotifsAmino Acid SequenceCircular DichroismDisulfidesMagnetic Resonance SpectroscopyModels, MolecularMolecular Sequence DataPeptidesProtein FoldingProtein Structure, SecondaryStructure-Activity RelationshipThermodynamicsDisulfidesPeptides

Identifiers

PMID12538887
PMCPMC2312432

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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.