Plant Transcription Factor Database
Previous version: v3.0
Ricinus communis
TCP Family
Species TF ID Description
29638.m000529TCP family protein
29638.m000530TCP family protein
29646.m001100TCP family protein
29646.m001101TCP family protein
29693.m001968TCP family protein
29728.m000800TCP family protein
29738.m001041TCP family protein
29813.m001457TCP family protein
29905.m000443TCP family protein
29929.m004612TCP family protein
30014.m000446TCP family protein
30032.m000457TCP family protein
30078.m002308TCP family protein
30093.m000364TCP family protein
30131.m007038TCP family protein
30138.m003959TCP family protein
30147.m014114TCP family protein
30147.m014152TCP family protein
30167.m000856TCP family protein
30174.m008721TCP family protein
30174.m008944TCP family protein
30192.m000545TCP 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