Gigantea Antibodies

Target Information

GIGANTEA is a plant circadian clock-associated gene whose product accumulates predominantly in the nucleus and functions at the interface of diurnal timekeeping and photoperiod sensing, thereby coordinating day-length-dependent developmental outputs. It encodes a large, novel protein lacking well-defined enzymatic motifs; early sequence analyses proposed multiple hydrophobic, membrane-spanning segments, but functional studies using tagged protein support a major nuclear pool consistent with transcriptional regulation of downstream targets. GI transcript abundance is under circadian control, peaking after dawn with phase and amplitude modulated by photoperiod, and loss-of-function alleles perturb clock properties (period and amplitude) as well as photoperiodic responses. Biologically, GI promotes long-day flowering by acting upstream of CONSTANS to increase CONSTANS and FLOWERING LOCUS T expression, helping align floral induction with appropriate seasonal light cycles; beyond flowering, GI contributes more broadly to circadian-regulated physiology, indicating a general role in sustaining robust rhythmic outputs across day/night conditions.

Synonyms

FB; GI; GIGANTEA; T22J18.6; T22J18_6