Cited by 103Protein Kinase Regulation and GTPase SignalingProtein Tyrosine PhosphatasesReceptor Mechanisms and Signaling

The G protein signaling regulator RGS3 enhances the GTPase activity of KRAS

Open access
Li, Chuanchuan, Vides, Alberto, Kim, Dongsung, Xue, Jenny Y., Zhao, Yulei, Lito, Piro·2021·Science

Abstract

Paving the way for KRAS inhibitors: KRAS is a key oncogene in multiple cancer types, but existing inhibitors target only a mutant form of KRAS containing the G12C mutation, and their function presents a mechanistic conundrum. It is known that KRAS G12C inhibitors bind to the oncoprotein in its inactive form; however, KRAS mutations such as G12C interfere with the action of proteins that normally help it hydrolyze GTP to achieve the inactive state. Li et al . have now identified a protein that enhances GTP hydrolysis by mutant KRAS, helping to explain the clinical activity of current drugs targeting this oncoprotein (see the Perspective by Cox and Der). —YN

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 · 10.1126/science.abf1730

Cites

37 of 37 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

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • ARS-853 validated the drug concept in vitro and demonstrated that KRASG12C is still cycling in cells.

    “the compound ARS-853 (14), which validated the drug concept in vitro and demonstrated that KRASG12C is indeed still cycling in cells (15, 16)”
  • RGS3 can enhance mutant KRAS GTPase activity, and susceptibility to RGS3 rather than intrinsic GTPase activity is the main determinant of how much a KRAS mutant occupies the GDP-bound state and thus its sensitivity to KRAS-off inhibitors.

    “A study published in 2021 indicates that regulator of G protein signalling 3 (RGS3), an atypical GAP that lacks the characteristic catalytic arginine finger, can enhance the GTPase activity of mutant KRAS56. This important finding implies that susceptibility to the action of RGS3, instead of intrinsic GTPase activity, is the predominant determinant of the extent to which a given KRAS mutant occup”

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
Li, C., Vides, A., Kim, D., Xue, J. Y., Zhao, Y., & Lito, P.
Affiliations
  • Memorial Sloan Kettering Cancer Center (US)
  • Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer, New York, NY 10065, USA.
Corresponding author
Lito, Piro
Venue
Science
Published
2021-10-08
Volume
374
Issue
6564
Pages
197-201
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W3202865057
Cited by
103
References
37
Citations by year
2026: 19 · 2025: 17 · 2024: 28 · 2023: 23 · 2022: 14 · 2021: 2
FWCI
5.26
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (R01CA230267, K08CA191082, F30CA232549, P30CA008748, R01CA230745)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
RGS3, KRAS, GTPase activity, GTP hydrolysis, KRAS G12C mutation, KRAS inhibitors, G protein signaling, oncogenes, protein-protein interaction
MeSH terms
Animals, Cell Extracts, Enzyme Activation, Guanosine Triphosphate, Humans, Hydrolysis, Lung Neoplasms, Mice, Nude, Signal Transduction, Proto-Oncogene Proteins p21(ras), GTP Phosphohydrolases, RGS Proteins, Xenograft Model Antitumor Assays, Cell Line, Tumor, Mice

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