Integrin proteins couple the ECM outside of a cell to the cytoskeleton inside of the cell. Which ECM protein binds and what signals are conveyed depend upon the particular makeup of the integrin pair being expressed. Functional integrin receptors are made up of two protein chains linked by disulfide bonds, an alpha chain and a beta chain. Integrin beta 4, also known as CD104, or GP160 is one of eight different beta chains, however beta 4 integrin is part of only one principal integrin receptor, integrin alpha6beta4. This receptor is expressed in endothelium, epithelium, and perineurium tissues of several organs as well as fibroblasts and Schwann cells but not in blood or lymphatic cells. Integrin alpha6beta4 is the laminin receptor and is critical for cellular polarity and motility.，官网链接：https://www.sigmaaldrich.cn/product/mm/mab2059c 默克 科研、开发、生产。 作为生命科学行业的全球领先供应商，我们致力于为科研、生物技术开发和生产，以及制药药物疗法开发和生产提供各类解决方案和服务。

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