ATCUL1 (CULLIN 1). Identical to Cullin-1 (CUL1) [Arabidopsis Thaliana] (GB:Q94AH6;GB:O22770;GB:Q56W31); similar to CUL2 (cullin 2), ubiquitin protein ligase binding [Arabidopsis thaliana] (TAIR:AT1G02980.1); similar to cullin-like protein1 [Pisum sativum] (GB:BAC10548.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO70971.1); similar to cullin 1-like protein C [Petunia inflata] (GB:ABB77428.1); contains InterPro domain Winged helix repressor DNA-binding (InterPro:IPR011991); contains InterPro domain Cullin homology; (InterPro:IPR016158); contains InterPro domain Cullin repeat-like (InterPro:IPR016159); contains InterPro domain C