2013/08/27 by Helene K. Myrvang, Xiaoxia Guo, Chan Li +1 · 25 citations
Biochemistry, Genetics and Molecular Biology · Medicine · #S100 Proteins and Annexins #Protease and Inhibitor Mechanisms #Neonatal Respiratory Health Research
paper · doi:10.1016/j.febslet.2013.08.012
Annexin A2 (AnxA2) and S100A10 are known to form a molecular complex. Using fluorescence-based binding assays, we show that both proteins are localised on the cell surface, in a molecular form that allows mutual interaction. We hypothesized that binding between these proteins could facilitate cell-cell interactions. For cells that express surface S100A10 and surface annexin A2, cell-cell interactions can be blocked by competing with the interaction between these proteins. Thus an annexin A2-S100A10 molecular bridge participates in cell-cell interactions, revealing a hitherto unexplored function of this protein interaction.