PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Gossypium hirsutum
HSF Family
Species TF ID Description
Gh_A01G1000HSF family protein
Gh_A02G0182HSF family protein
Gh_A02G1062HSF family protein
Gh_A02G1353HSF family protein
Gh_A02G1510HSF family protein
Gh_A03G0678HSF family protein
Gh_A03G1977HSF family protein
Gh_A03G2042HSF family protein
Gh_A05G0164HSF family protein
Gh_A05G0234HSF family protein
Gh_A05G1757HSF family protein
Gh_A05G3255HSF family protein
Gh_A06G0163HSF family protein
Gh_A06G0536HSF family protein
Gh_A06G1989HSF family protein
Gh_A07G0115HSF family protein
Gh_A08G0587HSF family protein
Gh_A08G1619HSF family protein
Gh_A08G2145HSF family protein
Gh_A08G2189HSF family protein
Gh_A08G2299HSF family protein
Gh_A09G0692HSF family protein
Gh_A09G1035HSF family protein
Gh_A09G1845HSF family protein
Gh_A09G2227HSF family protein
Gh_A09G2455HSF family protein
Gh_A10G0248HSF family protein
Gh_A10G0313HSF family protein
Gh_A10G0827HSF family protein
Gh_A10G1028HSF family protein
Gh_A11G0089HSF family protein
Gh_A11G0426HSF family protein
Gh_A11G1149HSF family protein
Gh_A11G2989HSF family protein
Gh_A12G0018HSF family protein
Gh_A12G1428HSF family protein
Gh_A12G1884HSF family protein
Gh_A12G2065HSF family protein
Gh_A13G0252HSF family protein
Gh_A13G1357HSF family protein
Gh_A13G1655HSF family protein
Gh_D01G1059HSF family protein
Gh_D02G0246HSF family protein
Gh_D02G0907HSF family protein
Gh_D03G0203HSF family protein
Gh_D03G0493HSF family protein
Gh_D03G0619HSF family protein
Gh_D03G1464HSF family protein
Gh_D03G1644HSF family protein
Gh_D04G0354HSF family protein
Gh_D05G0228HSF family protein
Gh_D05G0307HSF family protein
Gh_D05G1952HSF family protein
Gh_D06G0154HSF family protein
Gh_D06G0592HSF family protein
Gh_D06G2135HSF family protein
Gh_D07G2368HSF family protein
Gh_D08G0680HSF family protein
Gh_D08G1932HSF family protein
Gh_D08G2352HSF family protein
Gh_D08G2512HSF family protein
Gh_D09G0703HSF family protein
Gh_D09G1056HSF family protein
Gh_D09G1338HSF family protein
Gh_D09G1965HSF family protein
Gh_D09G2120HSF family protein
Gh_D10G0228HSF family protein
Gh_D10G0319HSF family protein
Gh_D10G0933HSF family protein
Gh_D10G1499HSF family protein
Gh_D11G0093HSF family protein
Gh_D11G0302HSF family protein
Gh_D11G0496HSF family protein
Gh_D11G1303HSF family protein
Gh_D12G0019HSF family protein
Gh_D12G1548HSF family protein
Gh_D12G2063HSF family protein
Gh_D12G2242HSF family protein
Gh_D13G0269HSF family protein
Gh_D13G1666HSF family protein
Gh_D13G2018HSF family protein
Gh_Sca135309G01HSF 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