Evidence map›Paper›PMID 12913122›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Protein grafting of an HIV-1-inhibiting epitope.

Samuel K Sia, Peter S Kim

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.1field-weighted citation impact, top 26% 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

20 citing papers in PubMed, 57 citations in OpenAlex.

  1. RSC chemical biology · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Computational design and experimental verification of a symmetric protein homodimer.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  9. Article
  10. Motif-directed redesign of enzyme specificity.Protein science : a publication of the Protein Society · 2014
    Article
  11. Max Bergmann lecture protein epitope mimetics in the age of structural vaccinology.Journal of peptide science : an official publication of the European Peptide Society · 2013
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Inhibiting HIV fusion with a beta-peptide foldamer.Journal of the American Chemical Society · 2005
    Article
  20. gp41: HIV's shy protein.Nature medicine · 2004
    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

2 authors at 2 institutions in 1 country.

Samuel K SiaHoward Hughes Medical Institute, Whitehead Institute for Biomedical Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
Peter S Kim
Howard Hughes Medical Institute · USMassachusetts Institute of Technology · US

Funding

STRUCTURAL BIOLOGY OF AIDS RELATED TARGETS AND LIGANDSP01GM056552 · NIGMS · WHITEHEAD INSTITUTE FOR BIOMEDICAL RES · PI WILLIAMSON, JAMES R · 1997 to 2001
$2.3M
NIGMS NIH HHS P01 GM 56552
6 · The paper itself

Abstract

Protein grafting, the transfer of a binding epitope of one ligand onto the surface of another protein, is a potentially powerful technique for presenting peptides in preformed and active three-dimensional conformations. Its utility, however, has been limited by low biological activity of the designed ligands and low tolerance of the protein scaffolds to surface substitutions. Here, we graft the complete binding epitope (19 nonconsecutive amino acids with a solvent-accessible surface area of >2,000 A2) of an HIV-1 C-peptide, which is derived from the C-terminal region of HIV-1 gp41 and potently inhibits HIV-1 entry into cells, onto the surface of a GCN4 leucine zipper. The designed peptide, named C34coil, displays a potent antiviral activity approaching that of the native ligand. Moreover, whereas the linear C-peptide is unstructured and sensitive to degradation by proteases, C34coil is well structured, conformationally stable, and exhibits increased resistance to proteolytic degradation compared with the linear peptide. In addition to being a structured antiviral inhibitor, C34coil may also serve as the basis for the development of an alternative class of immunogens. This study demonstrates that "one-shot" protein grafting, without subsequent rounds of optimization, can be used to create ligands with structural conformations and improved biomedical properties.

Indexed as

Amino Acid SequenceAnti-HIV AgentsDrug DesignEpitopesHIV-1HIV AntigensHIV Envelope Protein gp41Models, MolecularMolecular Sequence DataNeutralization TestsProtein EngineeringProtein Structure, SecondaryRecombinant ProteinsThermodynamicsAnti-HIV AgentsEpitopesHIV AntigensHIV Envelope Protein gp41Recombinant Proteins

Identifiers

PMID12913122
PMCPMC187838
OpenAlexW2143558515

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.