Li & Thomas (1998): We used virtual subtraction, a new gene isolation strategy, to isolate several genes of interest that are expressed in Arabidopsis embryos. These genes have demonstrated biological properties or have the potential to be involved in important biological processes. One gene isolated by virtual subtraction is PEI. It encodes a protein containing a Cys3His zinc finger domain associated with a number of animal and fungal transcription factors. In situ hybridization results showed that PEI1 is expressed throughout the embryo from globular to late cotyledon stage.


1) Lang, D; Weiche, B; Timmerhaus, G; Richardt, S; Riano-Pachon, DM; Correa, LG; Reski, R; Mueller-Roeber, B; Rensing, SA. 2010. Genome-wide phylogenetic comparative analysis of plant transcriptional regulation: a timeline of loss, gain, expansion, and correlation with complexity. Genome Biol Evol. 2: 488-503 PubMed
2) Li, Z; Thomas, TL. 1998. PEI1, an embryo-specific zinc finger protein gene required for heart-stage embryo formation in Arabidopsis. Plant Cell 10(3):383-98 PubMed


Name: C3H
Class: TF
Number of species containing the TAP: 119
Number of available proteins: 5300

The colour code corresponds to the rules for the domains:

should be contained
should not be contained

Domain rules:

(Domain names are clickable)

Phylogenetic tree for Archeaplastida:

To view the tree click here.

TAP distribution:

The following table shows the distribution of C3H over all species included in TAPscan. The values for e.g. a specific kingdom are shown in the tree below if you expand the tree for that kingdom.

Minimum Maximum Average Median Standard deviation

List of species containing C3H sorted by kingdomcladesupergrouporderfamily:

hide all | show all

expand kingdom Archaeplastida (5380 proteins in 119 species)