Floral homeotic protein APETALA 1 - P35631 (AP1_ARATH)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Transcription factor that promotes early floral meristem identity in synergy with LEAFY. Is required subsequently for the transition of an inflorescence meristem into a floral meristem. Is indispensable for normal development of sepals and petals in flowers. Regulates positively the B class homeotic proteins APETALA3 and PISTILLATA with the cooperation of LEAFY and UFO. Interacts with SEPALLATA3 or AP3/PI heterodimer to form complexes that could be involved in genes regulation during floral meristem development. Regulates positively AGAMOUS in cooperation with LEAFY. Displays a redundant function with CAULIFLOWER in the up-regulation of LEAFY. Together with AGL24 and SVP, controls the identity of the floral meristem and regulates expression of class B, C and E genes. Represses flowering time genes AGL24, SVP and SOC1 in emerging floral meristems. UniProt
Pathway Maps
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Subunit Structure
Homodimer capable of binding to CArG-box sequences. Heterodimer with SEP3, AP1 and SVP. Binds AP3/PI to form a ternary complex. Interacts with the SEU-LUG corepressor complex when complexed to AGL24 or SVP. Interacts with AGL15 and AGL16 (PubMed:15805477, PubMed:16679456). Interacts with TT16/AGL32 (PubMed:16080001). UniProt
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Data in red indicates combined ranges of Homology Models from the SWISS-MODEL Repository  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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