Evidence map›Paper›PMID 22652570›Full record

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

Folding pathways of proteins with increasing degree of sequence identities but different structure and function.

Rajanish Giri, Angela Morrone, Carlo Travaglini-Allocatelli, Per Jemth, Maurizio Brunori, Stefano Gianni

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 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

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

17 citing papers in PubMed.

  1. Determinants of Protein Folding Pathways: Lessons from Metamorphic Proteins.International journal of molecular sciences · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Exposing the distinctive modular behavior of β-strands and α-helices in folded proteins.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. How cooperative are protein folding and unfolding transitions?Protein science : a publication of the Protein Society · 2016
    Review
  12. Article
  13. Article
  14. Article
  15. Take home lessons from studies of related proteins.Current opinion in structural biology · 2013
    Review
  16. Chemical physics of protein folding.Proceedings of the National Academy of Sciences of the United States of America · 2012
    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

6 authors.

Rajanish GiriIstituto Pasteur-Fondazione Cenci Bolognetti, Istituto di Biologia e Patologia Molecolari del Consiglio Nazionale delle Ricerche, Dipartimento di Scienze Biochimiche A. Rossi Fanelli, Università di Roma La Sapienza, Piazzale A. Moro 5, 00185 Rome, Italy.
Angela Morrone
Carlo Travaglini-Allocatelli
Per Jemth
Maurizio Brunori
Stefano Gianni

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Much experimental work has been devoted in comparing the folding behavior of proteins sharing the same fold but different sequence. The recent design of proteins displaying very high sequence identities but different 3D structure allows the unique opportunity to address the protein-folding problem from a complementary perspective. Here we explored by Φ-value analysis the pathways of folding of three different heteromorphic pairs, displaying increasingly high-sequence identity (namely, 30%, 77%, and 88%), but different structures called G(A) (a 3-α helix fold) and G(B) (an α/β fold). The analysis, based on 132 site-directed mutants, is fully consistent with the idea that protein topology is committed very early along the pathway of folding. Furthermore, data reveals that when folding approaches a perfect two-state scenario, as in the case of the G(A) domains, the structural features of the transition state appear very robust to changes in sequence composition. On the other hand, when folding is more complex and multistate, as for the G(B)s, there are alternative nuclei or accessible pathways that can be alternatively stabilized by altering the primary structure. The implications of our results in the light of previous work on the folding of different members belonging to the same protein family are discussed.

Indexed as

Protein FoldingAmino Acid SequenceModels, MolecularMolecular Sequence DataMutagenesis, Site-DirectedProteinsSequence Homology, Amino AcidSpectrometry, FluorescenceStructure-Activity RelationshipProteins

Identifiers

PMID22652570
PMCPMC3497760

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.