GI (GIGANTEA); binding. Identical to Protein GIGANTEA (GI) [Arabidopsis Thaliana] (GB:Q9SQI2;GB:O64381;GB:O80545;GB:Q9S7N0); similar to LATE BLOOMER 1 [Pisum sativum] (GB:ABP81863.1); similar to GIGANTEA [Arabidopsis lyrata subsp. petraea] (GB:ABP96481.1); similar to hypothetical protein [Vitis vinifera] (GB:CAN81809.1); contains InterPro domain Armadillo-type fold; (InterPro:IPR016024)