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Cited by 347

The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.

Tyrosine-sulfated glycopeptide involved in cellular proliferation and expansion in Arabidopsis

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Amano, Yukari, Tsubouchi, Hiroko, Shinohara, Hidefumi, Ogawa, Mari, Matsubayashi, Yoshikatsu·2007·Proceedings of the National Academy of Sciences

Abstract

Posttranslational modification can confer special functions to peptides. Based on exhaustive liquid chromatography mass spectrometry analysis targeting tyrosine-sulfated peptides, we identified an 18-aa tyrosine-sulfated glycopeptide in Arabidopsis cell suspension culture medium. This peptide, which we named PSY1, significantly promotes cellular proliferation and expansion at nanomolar concentrations. PSY1 is widely expressed in various Arabidopsis tissues, including shoot apical meristem, and is highly up-regulated by wounding. Perception of PSY1 depends on At1g72300, which is a leucine-rich repeat receptor kinase (LRR-RK) whose two paralogs are involved in the perception of phytosulfokine (PSK), which is a 5-aa tyrosine-sulfated peptide that primarily promotes cellular proliferation. Multiple loss-of-function mutations in these three paralogous LRR-RKs significantly enhanced phenotypes, compared with single disruptants, suggesting that these LRR-RKs have overlapping functions. Triple mutations in these LRR-RKs resulted in dwarfism because of decreases in cell number and cell size and caused insufficiency in tissue repair after wounding. The present results suggest that this paralogous LRR-RK family integrates growth-promoting signals mediated by two structurally distinct sulfated peptides: PSY1 and PSK.

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Metadata

Authors
Amano, Y., Tsubouchi, H., Shinohara, H., Ogawa, M., & Matsubayashi, Y.
Venue
Proceedings of the National Academy of Sciences
Published
2007-11-13
Volume
104
Issue
46
Pages
18333-18338
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2051362637
Cited by
347
References
18
FWCI
7.70
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Tyrosine-sulfated glycopeptide involved in cellular proliferation and expansion in Arabidopsis. https://app.cochat.ai/papers/10.1073/pnas.0706403104
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Amano, Y., Tsubouchi, H., Shinohara, H., Ogawa, M., & Matsubayashi, Y. (2007). Tyrosine-sulfated glycopeptide involved in cellular proliferation and expansion in Arabidopsis. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0706403104

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