Identification of a glycosylphosphatidylinositol-anchored plasma membrane protein interacting with the C-terminus of auxin-binding protein 1: a photoaffinity crosslinking study.

Plant Molecular Biology
S Shimomura

Abstract

Synthetic peptides corresponding to the C-terminus of auxin-binding protein 1 (ABP1) have been shown to function as auxin agonists. To define a C-terminal receptor, photoaffinity crosslinking experiments were performed using an azido derivative of a C-terminal peptide and plasma membranes from maize (Zea mays L.). The crosslinking reaction was monitored by immunoblotting using anti-ABP1 antibodies. The crosslinked proteins were isolated by 2D gel electrophoresis and identified by mass spectrometric analysis. Further, the noncrosslinked forms of these proteins were also identified. Two proteins with apparent molecular masses of 73 kDa (termed C-terminal peptide-binding protein 1, CBP1) and 35 kDa (CBP2) were specifically linked with the C-terminal peptide. CBP2 is a cytoplasmic protein that consists of two conserved domains that are characteristic of a ricin-type lectin domain. CBP2 remained in the detergent-insoluble particles and was released from the particles by the addition of monosaccharides such as methyl-beta-D-galactopyranoside. CBP1 was released from the membranes by treatment with phosphatidylinositol-specific phospholipase C, indicating that CBP1 is a glycosylphosphatidylinositol (GPI)-anchored plasma membrane protei...Continue Reading

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Citations

Oct 3, 2009·Plant Cell Reports·Kishore C S PanigrahiMan Mohan Johri
Dec 26, 2012·Antioxidants & Redox Signaling·Sabine LüthjeKerstin Wöltje
May 11, 2010·Cold Spring Harbor Perspectives in Biology·Catherine Perrot-Rechenmann
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Feb 24, 2010·Journal of Plant Physiology·Maria Shishova, Sylvia Lindberg
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Nov 26, 2015·Current Opinion in Plant Biology·Xue PanZhenbiao Yang
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Jun 7, 2015·Journal of Experimental Botany·Jisheng ChenZhenbiao Yang
Jul 1, 2011·Molecular Plant·Jing-Hua Shi, Zhen-Biao Yang
Dec 2, 2014·Phytochemistry·Magdalena LuczakPrzemysław Wojtaszek
Oct 9, 2014·Frontiers in Plant Science·Kaori N Miyawaki, Zhenbiao Yang
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Apr 12, 2011·The Plant Cell·Hen-ming WuShaul Yalovsky
Jun 1, 2021·Plant Signaling & Behavior·Kai YueZhuzhu Luo
Apr 28, 2021·Cold Spring Harbor Perspectives in Biology·Richard Napier

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