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In nature, the chemical form cyanocobalamin does not occur and must therefore be transformed in the body in order to take effect
Two primary reasons: First, immunogenicity
Peptides fall under one of three categories defined by the FDA: Category 1 , Category 2 , or Category 3
General cell culture and imaging The HeLa cell line used in this study was purchased from American Type Culture Collection (ATCC) and grown in DMEM (Gibco, 11965) media supplemented with 10% FBS and 1% 1003 Pen Strep (Gibco)
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