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Recombinant Human C8B protein (NP_000057.2) is produced in Glycoengineered Mannose-5 Pichia pastoris. This expression system is used for the production of glycoproteins and antibodies with a mannose-5 structure at N-linked sites.
This gene encodes one of the three subunits of the complement component 8 (C8) protein. C8 is composed of equimolar amounts of alpha, beta and gamma subunits, which are encoded by three separate genes. C8 is one component of the membrane attack complex, which mediates cell lysis, and it initiates membrane penetration of the complex. This protein mediates the interaction of C8 with the C5b-7 membrane attack complex precursor. In humans deficiency of this protein is associated with increased risk of meningococcal infections.