Claim: A non-member of the LDLR family, low density lipoprotein receptor-related protein 1 (LRP 1) contributes to regulating protein activity.
Evidence: As a member of the LDLR family, LRP1 contains cysteine-rich complement-type repeats, EGF (gene) repeats, β-propeller domains, a transmembrane domain, and a cytoplasmic domain. 
LRP1 is a member of the LDLR family and ubiquitously expressed in multiple tissues, though it is most abundant in vascular smooth muscle cells (SMCs), hepatocytes, and neurons.