PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Coffea canephora
HB-other Family
Species TF ID Description
Cc00_g01120HB-other family protein
Cc00_g04010HB-other family protein
Cc01_g20510HB-other family protein
Cc02_g13850HB-other family protein
Cc02_g33420HB-other family protein
Cc05_g07750HB-other family protein
Cc05_g11560HB-other family protein
Cc08_g00950HB-other family protein
Cc11_g03680HB-other family protein
Cc11_g03720HB-other family protein
Cc11_g03750HB-other family protein
Cc11_g03760HB-other family protein
Cc11_g03780HB-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.