CUL2 (cullin 2); ubiquitin protein ligase binding. similar to ATCUL1 (CULLIN 1) [Arabidopsis thaliana] (TAIR:AT4G02570.3); similar to ATCUL1 (CULLIN 1) [Arabidopsis thaliana] (TAIR:AT4G02570.2); similar to ATCUL1 (CULLIN 1) [Arabidopsis thaliana] (TAIR:AT4G02570.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO70971.1); similar to cullin 1B [Nicotiana tabacum] (GB:CAC87836.1); similar to cullin 1-like protein G [Petunia inflata] (GB:ABB77429.1); contains InterPro domain Winged helix repressor DNA-binding (InterPro:IPR011991); contains InterPro domain Cullin homology; (InterPro:IPR016158); contains InterPro domain Cullin repeat-l