PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Coffea arabica
HSF Family
Species TF ID Description
XP_027062444.1HSF family protein
XP_027065759.1HSF family protein
XP_027066038.1HSF family protein
XP_027066406.1HSF family protein
XP_027066484.1HSF family protein
XP_027066561.1HSF family protein
XP_027067490.1HSF family protein
XP_027069385.1HSF family protein
XP_027069386.1HSF family protein
XP_027070332.1HSF family protein
XP_027071738.1HSF family protein
XP_027071739.1HSF family protein
XP_027074386.1HSF family protein
XP_027079935.1HSF family protein
XP_027080465.1HSF family protein
XP_027080466.1HSF family protein
XP_027080467.1HSF family protein
XP_027080468.1HSF family protein
XP_027080469.1HSF family protein
XP_027080470.1HSF family protein
XP_027080471.1HSF family protein
XP_027081041.1HSF family protein
XP_027082164.1HSF family protein
XP_027082171.1HSF family protein
XP_027082172.1HSF family protein
XP_027083096.1HSF family protein
XP_027083454.1HSF family protein
XP_027084688.1HSF family protein
XP_027084719.1HSF family protein
XP_027084720.1HSF family protein
XP_027084721.1HSF family protein
XP_027084722.1HSF family protein
XP_027084723.1HSF family protein
XP_027084725.1HSF family protein
XP_027084726.1HSF family protein
XP_027084727.1HSF family protein
XP_027084728.1HSF family protein
XP_027090794.1HSF family protein
XP_027093290.1HSF family protein
XP_027096032.1HSF family protein
XP_027096041.1HSF family protein
XP_027096046.1HSF family protein
XP_027096050.1HSF family protein
XP_027098048.1HSF family protein
XP_027100821.1HSF family protein
XP_027102720.1HSF family protein
XP_027103251.1HSF family protein
XP_027103833.1HSF family protein
XP_027105264.1HSF family protein
XP_027105613.1HSF family protein
XP_027105614.1HSF family protein
XP_027108830.1HSF family protein
XP_027110351.1HSF family protein
XP_027111776.1HSF family protein
XP_027115041.1HSF family protein
XP_027115053.1HSF family protein
XP_027115724.1HSF family protein
XP_027116888.1HSF family protein
XP_027119119.1HSF family protein
XP_027119172.1HSF family protein
XP_027126013.1HSF family protein
XP_027127048.1HSF family protein
HSF Family Introduction

Heat stress transcription factors (Hsfs) are the major regulators of the plant heat stress (hs) response. Sequencing of the Arabidopsis genome revealed the existence of 21 open-reading frames (ORFs) encoding putative Hsfs assigned to classes A-C. Here we present results of a functional genomics approach to the Arabidopsis Hsf family focused on the analysis of their C-terminal domains (CTDs) harboring conserved modules for their function as transcription factors and their intracellular localization. Using reporter assays in tobacco protoplasts and yeast as well as glutathione-S-transferase (GST) pull-down assays, we demonstrate that short peptide motifs enriched with aromatic and large hydrophobic amino acid (aa) residues embedded in an acidic surrounding (AHA motifs) are essential for transcriptional activity of class A Hsfs. In contrast to this, class B and C Hsfs lack AHA motifs and have no activator function on their own. We also provide evidence for the function of a leucine (Leu)-rich region centered around a conserved QMGΦL motif at the very C-terminus as a nuclear export signal (NES) of class A Hsfs. Sequence comparison indicates that the combination of a C-terminal AHA motif with the consensus sequence FWxxF/L,F/I/L as well as the adjacent NES represents a signature domain for plant class A Hsfs, which allowed to identify more than 60 new Hsfs from the expressed sequence tag (EST) database.

Kotak S, Port M, Ganguli A, Bicker F, von Koskull-Doring P.
Characterization of C-terminal domains of Arabidopsis heat stress transcription factors (Hsfs) and identification of a new signature combination of plant class A Hsfs with AHA and NES motifs essential for activator function and intracellular localization.
Plant J, 2004. 39(1): p. 98-112.
PMID: 15200645