Encodes transcription factor involved in photomorphogenesis. Regulates gibberellin biosynthesis. Activated by AGAMOUS in a cal-1, ap1-1 background. Expressed at low levels in developing stamens. Increased levels of ATH1 severely delay flowering in the C24 accession. Most remarkably, ectopically expressed ATH1 hardly had an effect on flowering time in the Col-0 and Ler accessions. ATH1 physically interacts with STM, BP and KNAT6 and enhances the shoot apical meristem defect of some of these genes suggesting a role in SAM maintenance. Nuclear localization is dependent upon interaction with STM. (.1)
AAAASELSLTLCSNSI at 212/564 in sorghum Sb009940 (Type Ib)
AAAASELSLSLCSKSS at 183/539 in rice Os007096 (Type Ib)
GKLANELSLSLATSQP at 241/576 in poplar Pt008851 (Type Ib)
NANNKELSLSLATSTT at 173/502 in soybean Gm014154 (Type Ib)