Cited by 156Chemical Synthesis and AnalysisCell death mechanisms and regulationProtein Structure and Dynamics

Rational Design of Proteolytically Stable, Cell-Permeable Peptide-Based Selective Mcl-1 Inhibitors

Open access
Muppidi, Avinash, Doi, Kenichiro, Edwardraja, Selvakumar, Drake, Eric J., Gulick, Andrew M., Wang, Hong-Gang, Lin, Qing·2012·Journal of the American Chemical Society

Abstract

Direct chemical modifications provide a simple and effective means to "translate" bioactive helical peptides into potential therapeutics targeting intracellular protein-protein interactions. We previously showed that distance-matching bisaryl cross-linkers can reinforce peptide helices containing two cysteines at the i and i+7 positions and confer cell permeability to the cross-linked peptides. Here we report the first crystal structure of a biphenyl-cross-linked Noxa peptide in complex with its target Mcl-1 at 2.0 Å resolution. Guided by this structure, we remodeled the surface of this cross-linked peptide through side-chain substitution and N-methylation and obtained a pair of cross-linked peptides with substantially increased helicity, cell permeability, proteolytic stability, and cell-killing activity in Mcl-1-overexpressing U937 cells.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1021/ja306864v

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Muppidi, A., Doi, K., Edwardraja, S., Drake, E. J., Gulick, A. M., Wang, H.-G., & Lin, Q.
Affiliations
  • University at Buffalo, State University of New York (US)
  • Pennsylvania State University (US)
Corresponding author
Lin, Qing
Venue
Journal of the American Chemical Society
Published
2012-09-04
Volume
134
Issue
36
Pages
14734-14737
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2069526261
Cited by
156
References
34
Citations by year
2026: 5 · 2025: 2 · 2024: 1 · 2023: 3 · 2022: 6 · 2021: 15 · 2020: 12 · 2019: 16 · 2018: 16 · 2017: 12 · 2016: 18 · 2015: 20 · 2014: 21 · 2013: 7 · 2012: 2
FWCI
6.68
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • John R. Oishei Foundation
  • Elsa U. Pardee Foundation
  • National Cancer Institute (CA-82197, R01CA082197)
  • National Institute of General Medical Sciences (R01GM068440, GM-068440)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
Mcl-1 inhibitors, membrane permeability, proteolytic stability, protein-protein interaction, crystal structure, side-chain substitution, N-methylation, apoptosis, U937 cells
MeSH terms
Cell Membrane Permeability, Humans, Models, Molecular, Peptides, Molecular Structure, Proto-Oncogene Proteins c-bcl-2, U937 Cells, Myeloid Cell Leukemia Sequence 1 Protein

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review