Enables ubiquitin ligase complex scaffold activity and ubiquitin protein ligase binding activity. Involved in SCF-dependent proteasomal ubiquitin-dependent protein catabolic process; positive regulation of canonical NF-kappaB signal transduction; and protein K48-linked ubiquitination. Located in plasma membrane. Part of Parkin-FBXW7-Cul1 ubiquitin ligase complex and SCF ubiquitin ligase complex. [provided by Alliance of Genome Resources, Jul 2025]
Forensic Context
A study in *C. elegans* demonstrated that RNAi knockdown of the cullin scaffold protein CUL-1, a core component of the SCF ubiquitin ligase complex, yields heterochronic phenotypes including precocious seam cell fusion and adult alae formation, similar to those observed in *dre-1* mutants [Fielenbach et al. DOI:10.1016/j.devcel.2007.01.018].