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Localization of the Ethylene Receptor ETR1 to the Endoplasmic Reticulum of Arabidopsis

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Chen, Yi-Feng, Randlett, Melynda D., Findell, Jennifer L., Schaller, G. Eric·2002·Journal of Biological Chemistry

Abstract

The ethylene receptor ETR1 of Arabidopsis contains transmembrane domains responsible for ethylene binding and membrane localization. Sequence analysis does not provide information as to which membrane system of the plant cell ETR1 is localized. Examination by aqueous two-phase partitioning, sucrose density-gradient centrifugation, and immunoelectron microscopy indicates that ETR1 is predominantly localized to the endoplasmic reticulum. Localization of ETR1 showed no change following a cycloheximide chase. Ethylene binding by ETR1 did not affect localization to the endoplasmic reticulum, based upon analysis of plants treated with the ethylene precursor 1-aminocyclopropane- 1-carboxylic acid and by examination of a mutant receptor that does not bind ethylene. Determinants within the amino-terminal half of ETR1 are sufficient for targeting to and retention at the endoplasmic reticulum. These data support a central role of the plant endoplasmic reticulum in hormone perception and signal transduction.

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Metadata

Authors
Chen, Y.-F., Randlett, M. D., Findell, J. L., & Schaller, G. E.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2002-05
Volume
277
Issue
22
Pages
19861-19866
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2071883986
Cited by
372
References
0
FWCI
20.45
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Localization of the Ethylene Receptor ETR1 to the Endoplasmic Reticulum of Arabidopsis. https://app.cochat.ai/papers/10.1074/jbc.m201286200
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Chen, Y.-F., Randlett, M. D., Findell, J. L., & Schaller, G. E. (2002). Localization of the Ethylene Receptor ETR1 to the Endoplasmic Reticulum of Arabidopsis. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m201286200

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