PCSK9 Protein, Human, Recombinant (D374Y & V474I & G670E, His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 72.6 kDa and the accession number is AAV67948.1.
Factor H is the major soluble inhibitor of complement, where its binding to self markers (i.e., particular glycan structures) prevents complement activation and amplification on host surfaces. Not surprisingly, mutations and polymorphisms that affect recognition of self by factor H are associated with diseases of complement dysregulation, such as age-related macular degeneration and atypical haemolytic uremic syndrome. In addition, pathogens (i.e., non-self) and cancer cells (i.e., altered-self) can hijack factor H to evade the immune response.