Visualizing mechanical tension across membrane receptors with a fluorescent sensor

Daniel R Stabley,1 Carol Jurchenko,1 Stephen S Marshall1 & Khalid S Salaita1

We report a fluorescence-based turn-on sensor for mapping the mechanical strain exerted by specific cell-surface proteins in living cells. The sensor generates force maps with high spatial and temporal resolution using conventional fluorescence microscopy. We demonstrate the approach by mapping mechanical forces during the early stages of regulatory endocytosis of the ligand-activated epidermal growth factor receptor (EGFR).Our tension sensor design provides a general method for mapping mechanical tension experienced by specific membrane proteins on the surface of living cells. These tension maps provide, to our knowledge, the first direct evidence showing that mechanical forces are associated with the initial stages of EGF ligand internalization. This method could be applied to rapidly study chemomechanical interactions across nearly any receptor or cell type. The inherent flexibility of the platform may also enable the investigation of mechanical force transmission across cell-cell junctions, such as those between T cells and antigen-presenting cells as well as epithelial cell junctions, which are typically not amenable to direct investigations by other methods.

• 以上资料由西亚试剂：http://www.xiyashiji.com/ 提供此产品的详细信息如密度,含量,分子式,分子量等均可在西亚官网查询   
• 相关产品如汞乙酸汞氯化汞氧化汞碘化汞硫酸汞硝酸汞溴化汞硝酸亚汞氯化亚汞乙酸苯汞碘化汞钾硫氰酸汞氯化氨基汞三氯生三氯氧磷三氯乙烯水合氯醛三氯化磷三氯化钌三氯化钛三氯化铱三氯化铑三氯硫磷三氯乙烷三氯甲烷三氯卡班TCC1,3,5-三氯苯1,2,4-三氯苯1,2,3-三氯苯无水氯化铝三氯乙酸酐三氯乙酸钠碘甲烷二碘甲烷三碘甲烷 三氟碘甲烷硫酸二甲酯氯磺酸苯硫酚苯硫酚钠3-氨基苯硫酚2,6-二氯苯硫酚2,4-二氯苯硫酚2,5-二氯苯硫酚2-甲氧基苯硫酚2-氯乙醇 等均有销售.欢迎订购