STK — Arabidopsis thaliana

Summary

AT4G09960 (STK, also known as SEEDSTICK or AGL11) encodes a protein containing MADS-box, MEF2-like N-terminal, and K-box domains. The protein is associated with sequence-specific DNA binding, transcription regulatory region binding, and protein dimerization activity. STK is linked to reproductive development, including regulation of double fertilization, seed growth, floral organ formation and identity maintenance, dehiscence, and release from dormancy. It has been connected to abscisic acid breakdown, mucilage anabolism, and responses to UV-A and high light intensity. The gene is associated with numerous traits including pistil and carpel morphology, seed coat hardness and morphology, floral organ size, silique fruit morphology, plant male sterility, seed longevity, and photoperiod-sensitive flowering time. Studies of related genes in other species link the family to fruit development, ripening, and carotenoid accumulation.