The Molecular Mechanism of Interaction Between SEPALLATA3 and APETALA1 in <i>Arabidopsis thaliana</i>.

ABSTRACT: Flower formation has been a primary focus in botanical research, leading to the identification of multiple factors regulating flowering over the past 30 years. The MADS transcription factors SEPALLATA3 (SEP3) and APETALA1 (AP1) are essential for floral meristem development and organ identity. In Arabidopsis, SEP3 functions as a central integrator, combining MADS proteins into a tetrameric complex, with its interaction with AP1 playing a key role in sepal and petal formation. This research explores AtSEP3 and AtAP1, with particular emphasis on the Leu residue in the K1 subfunctional domain of AtSEP3, which is necessary for their interaction. A predicted structural model of AP1 was used, followed by protein docking with SEP3, which indicated that Leu residues at position

SUBMITTER: Tan XM 

PROVIDER: S-EPMC11955279 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature