NCBI Accession #
NP_566799.1
NCBI GenBank Nucleotide #
NM_113591.4
NCBI Official Full Name
AP2/B3-like transcriptional factor family protein
NCBI Official Symbol
FUS3
NCBI Official Synonym Symbols
FUSCA 3
NCBI Protein Information
AP2/B3-like transcriptional factor family protein
NCBI Summary
Transcriptional factor with high similarity to the B3 region of the VP1/ABI3-like proteins. Full length FUS3 protein binds to the highly conserved RY motif [DNA motif CATGCA(TG)], present in many seed-specific promoters, and the B3 domains of this transcription factor is necessary for the specific interaction with the RY element. Transcriptional activity of FUS3 requires the B3 DNA-binding domain and an activation domain. FUS3 specifies cotyledon identity. Regulator of gene expression during late embryogenesis. Involved in the control foliar organ identity in Arabidopsis by regulating the synthesis of two hormones, abscisic acid and gibberellin. FUS3 together with LEC1 positively regulate the abundance of the ABI3 protein in the seed.
UniProt Protein Name
B3 domain-containing transcription factor FUS3
UniProt Synonym Protein Names
Protein FUSCA3
UniProt Primary Accession #
Q9LW31
UniProt Secondary Accession #
O82411; Q700C8; Q9SAT8
UniProt Related Accession #
Q9LW31
UniProt Comments
Transcription regulator involved in gene regulation during late embryogenesis. Its expression to the epidermis is sufficient to control foliar organ identity by regulating positively the synthesis abscisic acid (ABA) and negatively gibberellin production. Negatively regulates TTG1 in the embryo. Positively regulates the abundance of the ABI3 protein in the seed.