PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Nicotiana sylvestris
HB-other Family
Species TF ID Description
XP_009758415.1HB-other family protein
XP_009768311.1HB-other family protein
XP_009768312.1HB-other family protein
XP_009768313.1HB-other family protein
XP_009770801.1HB-other family protein
XP_009770802.1HB-other family protein
XP_009773812.1HB-other family protein
XP_009775738.1HB-other family protein
XP_009775739.1HB-other family protein
XP_009778419.1HB-other family protein
XP_009778421.1HB-other family protein
XP_009778422.1HB-other family protein
XP_009778423.1HB-other family protein
XP_009778424.1HB-other family protein
XP_009780873.1HB-other family protein
XP_009781785.1HB-other family protein
XP_009781786.1HB-other family protein
XP_009783319.1HB-other family protein
XP_009783327.1HB-other family protein
XP_009783336.1HB-other family protein
XP_009783344.1HB-other family protein
HB-other Family Introduction

A homeobox (HB) encodes a protein domain, the homeodomain (HD), which is a conserved 60-amino acid motif present in transcription factors found in all the eukaryotic organisms. This 60-amino acid sequence folds into a characteristic three-helix structure that is able to interact specifically with DNA. Most HDs are able to bind DNA as monomers with high affinity, through interactions made by helix III (the so-called recognition helix) and a disordered N-terminal arm located beyond helix I. The high degree of conservation of this type of domain among diverse proteins from different kingdoms indicates that this structure is crucial to maintain the HD functionality and that the role played by this domain is vital.

Ariel FD, Manavella PA, Dezar CA, Chan RL.
The true story of the HD-Zip family.
Trends Plant Sci, 2007. 12(9): p. 419-26.
PMID: 17698401

Note: In plantTFDB, proteins of HB-other family include HB superfamily proteins that cannot be classified as HD-ZIP, TALE, WOX and HB-PHD.