Plant Transcription factor database - Universität Potsdam
version: 3.0

Arabidopsis thaliana CPP Family


Cvitanich et al. 2000:Nodulin genes are specifically expressed in the nitrogen-fixing root nodules. We have identified a novel type of DNA-binding protein (CPP1) interacting with the promoter of the soybean leghemoglobin gene Gmlbc3. The DNA-binding domain of CPP1 contains two similar Cys-rich domains with 9 and 10 Cys, respectively. Genes encoding similar domains have been identified in Arabidopsis thaliana, Caenorhabditis elegans, the mouse, and human. The domains also have some homology to a Cys-rich region present in some polycomb proteins. The cpp1 gene is induced late in nodule development and the expression is confined to the distal part of the central infected tissue of the nodule. A constitutively expressed cpp1 gene reduces the expression of a Gmlbc3 promoter-gusA reporter construct in Vicia hirsuta roots. These data therefore suggest that CPP1 might be involved in the regulation of the leghemoglobin genes in the symbiotic root nodule.

Members of this family
  SHOULD possess CXC domain

Domain alignments

This family is also present in:


There are 9 gene models in this family

Gene modelDescriptionDomains
AT2G20110.1 tesmin/TSO1-like CXC domain-containing protein CXC
AT2G20110.2 tesmin/TSO1-like CXC domain-containing protein CXC
AT3G04850.1 tesmin/TSO1-like CXC domain-containing protein CXC
AT3G16160.1 transcription factor CXC
AT3G22760.1 SOL1 (TSO1-Like); transcription factor CXC
AT3G22780.1 TSO1 (CHINESE FOR 'UGLY'); transcription factor CXC
AT4G14770.1 tesmin/TSO1-like CXC domain-containing protein CXC
AT4G29000.1 tesmin/TSO1-like CXC domain-containing protein CXC
AT5G25790.1 transcription factor CXC

General references

Cvitanich, C; Pallisgaard, N; Nielsen, KA; Hansen, AC; Larsen, K; Pihakaski-Maunsbach, K; Marcker, KA; Jensen, EO. 2000. CPP1, a DNA-binding protein involved in the expression of a soybean leghemoglobin c3 gene. Proc. Natl. Acad. Sci. U.S.A. 97(14):8163-8 PUBMEDID:10859345