Polyadenylated ribonucleic acid (RNA) was isolated from confluent human endothelial
cells in culture and translated in a cell-free rabbit reticulocyte lysate protein-synthesizing
system. Using specific immunopredpitation, the translation product was found to contain
1.58% VIH related protein (VIIIR), which has a molecular weight of 0.26 × 106, similar to the subunit of VIIIR present in normal plasma. This indicated that VIIIR
messenger RNA is responsible for the synthesis of subunits only and intracellular
post-translational events are required for the assembly of tetramer and multimers.
Keywords
Factor VIII related protein - Cell-free synthesis - Human endothelial cells - Messenger
RNA