Plant Transcription Factor Database
Previous version: v1.0, v2.0, v3.0
Phalaenopsis equestris
TCP Family
Species TF ID Description
PEQU_03822TCP family protein
PEQU_06749TCP family protein
PEQU_06750TCP family protein
PEQU_06996TCP family protein
PEQU_08153TCP family protein
PEQU_09751TCP family protein
PEQU_11472TCP family protein
PEQU_11715TCP family protein
PEQU_13315TCP family protein
PEQU_14328TCP family protein
PEQU_15634TCP family protein
PEQU_19547TCP family protein
PEQU_20952TCP family protein
PEQU_21260TCP family protein
PEQU_21454TCP family protein
PEQU_23348TCP family protein
PEQU_25177TCP family protein
PEQU_28429TCP family protein
PEQU_39718TCP family protein
PEQU_40186TCP family protein
PEQU_40981TCP family protein
TCP Family Introduction

The TCP gene family was first described in 1999, as a small group of plant genes encoding proteins sharing the socalled TCP domain, a 59-amino acid basic helix-loop-helix (bHLH) motif that allows DNA binding and protein-protein interactions. This domain was initially identified in four proteins encoded by apparently unrelated genes, from which the name 'TCP' was derived: teosinte branched1 (tb1) from maize (Zea mays), CYCLOIDEA (CYC) from snapdragon (Antirrhinum majus), and the PROLIFERATING CELL FACTORS 1 and 2 (PCF1 and PCF2) from rice (Oryza sativa). The tb1 gene is a major determinant of strong apical dominance in domesticated maize. CYC is involved in the control of floral bilateral symmetry in Antirrhinum. PCF1 and PCF2 are factors that bind to the promoter of the rice PROLIFERATING CELL NUCLEAR ANTIGEN (PCNA) gene, which encodes a protein involved in DNA replication and repair, maintenance of chromatin structure, chromosome segregation and cell-cycle progression.

TCP genes have been found in various plant species, and new roles in plant development have been elucidated. These discoveries emphasize the importance of this plant-specific gene family in the evolution and developmental control of plant form.

Martin-Trillo M, Cubas P.
TCP genes: a family snapshot ten years later.
Trends Plant Sci, 2010. 15(1): p. 31-9.
PMID: 19963426