C2C2-CO-like Transcription Factor Family
CO(CONSTANS) gene acts between the circadian clock and genes controlling meristem
identity.In Arabidopsis, CO transcription factors defined by two conserved domains. The
first is a zinc finger region near the amino terminus that resembles B-boxes, which
regulate protein-protein interactions in several animal transcription factors. The
second is a region of 43 amino acids near the carboxy terminus termed the CCT (CO,
CO-like, TOC1) domain. Studies using green fluorescent protein fusions show that the
CCT domain is involved in nuclear localization of the CO protein but must have an
additional role because the late-flowering co-7 mutant, which has an altered CCT
domain, correctly localizes the protein.
80+ putative C2C2-CO-like TFs in soybean with (1) CCT domain of peptide,
CDS, and cDNA sequences, CCT multiple sequence alignment;
blast HSP, matched HSP seqeunecs
and CCT domain based phylogeny tree; and with (2) ZF-B_Box domain of peptide,
CDS, and cDNA sequences,
multiple sequence alignment; blast HSP,
matched zf-B_box sequences, and zf-B_box based phylogeny tree in Soy -- TFKB.
31 C2C2-CO-like protein
, and DNA
sequences with
annotations for soybean in PlantTFDB. Most are partial sequences.
Last updated by Dr. Jeff Chen
on July 20, 2009.
