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Structural Biology of Auxin Signal Transduction

  • Hongwei Jing
  • Lucia C. Strader
Chapter

Abstract

The phytohormone auxin is a central regulator of plant growth and development and is required for response to multiple environmental and developmental cues. Primary auxin response is mediated by several protein families, including members of the TRANSPORT INHIBITOR RESPONSE1/AUXIN SIGNALING F-BOX PROTEIN (TIR1/AFB) family of F-box proteins, the AUXIN RESPONSE FACTOR (ARF) family of transcription factors, and the Auxin/INDOLE-3-ACETIC ACID (Aux/IAA) family of repressor proteins. Structures of multiple domains of each of these protein families have revealed molecular insight into auxin signal transduction. Here, we provide an overview of the structural details of auxin signaling revealed by these studies and explore questions and models suggested by these structural data.

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of BiologyWashington University in St. LouisSt. LouisUSA

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