The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
GADD34–PP1c recruited by Smad7 dephosphorylates TGFβ type I receptor
Open accessAbstract
The cascade of phosphorylation is a pivotal event in transforming growth factor β (TGFβ) signaling. Reversible phosphorylation regulates fundamental aspects of cell activity. TGFβ-induced Smad7 binds to type I receptor (TGFβ type I receptor; TβRI) functioning as a receptor kinase antagonist. We found Smad7 interacts with growth arrest and DNA damage protein, GADD34, a regulatory subunit of the protein phosphatase 1 (PP1) holoenzyme, which subsequently recruits catalytic subunit of PP1 (PP1c) to dephosphorylate TβRI. Blocking Smad7 expression by RNA interference inhibits association of GADD34–PP1c complex with TβRI, indicating Smad7 acts as an adaptor protein in the formation of the PP1 holoenzyme that targets TβRI for dephosphorylation. SARA (Smad anchor for receptor activation) enhances the recruitment PP1c to the Smad7–GADD34 complex by controlling the specific subcellular localization of PP1c. Importantly, GADD34–PP1c recruited by Smad7 inhibits TGFβ-induced cell cycle arrest and mediates TGFβ resistance in responding to UV light irradiation. The dephosphorylation of TβRI mediated by Smad7 is an effective mechanism for governing negative feedback in TGFβ signaling.
Overview
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.
Integrity signals
Registry
Cites
Statistics
Verification
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.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
TGF-β Signaling in Tumor Suppression and Cancer Progression
Derynck, R., Akhurst, R. J., & Balmain, A. (2001) · Nature Genetics · doi:10.1038/ng1001-117 · Cited by 2,275
Cited by
The integrated stress response
Pakos‐Zebrucka, K., Koryga, I., Mnich, K., Ljujic, M., Samali, A., & Gorman, A. M. (2016) · The EMBO Reports · doi:10.15252/embr.201642195 · Cited by 2,659
TGF-β Activation and Function in Immunity
Travis, M. A., & Sheppard, D. (2014) · Annual Review of Immunology · doi:10.1146/annurev-immunol-032713-120257 · Cited by 856
TGF-β in Hepatic Stellate Cell Activation and Liver Fibrogenesis—Updated 2019
Dewidar, B., Meyer, C., Dooley, S., & Meindl-Beinker, A. N. (2019) · Cells · doi:10.3390/cells8111419 · Cited by 837
Specificity, versatility, and control of TGF-β family signaling
Derynck, R., & Budi, E. H. (2019) · Science Signaling · doi:10.1126/scisignal.aav5183 · Cited by 785
TGF-β Superfamily Signaling in Embryonic Development and Homeostasis
Wu, M. Y., & Hill, C. S. (2009) · Developmental Cell · doi:10.1016/j.devcel.2009.02.012 · Cited by 746
Metadata
- Authors
- Shi, W., Sun, C., He, B., Xiong, W., Shi, X., Yao, D., & Cao, X.
- Venue
- The Journal of Cell Biology
- Publisher
- Rockefeller University Press
- Published
- 2004-01-12
- Volume
- 164
- Issue
- 2
- Pages
- 291-300
- ISSN
- 0021-9525 (ISSN-L)
- 1540-8140
- OpenAlex
- W2082873063
- Cited by
- 266
- References
- 1
- FWCI
- 4.70
- Type
- journal article
- Language
- en
- Open access
- green
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: GADD34–PP1c recruited by Smad7 dephosphorylates TGFβ type I receptor. https://app.cochat.ai/papers/10.1083/jcb.200307151
- The paper
- Shi, W., Sun, C., He, B., Xiong, W., Shi, X., Yao, D., & Cao, X. (2004). GADD34–PP1c recruited by Smad7 dephosphorylates TGFβ type I receptor. The Journal of Cell Biology. https://doi.org/10.1083/jcb.200307151
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
