Structural Analysis of Piezo1 Ion Channel Reveals the Relationship between Amino Acid Sequence Mutations and Human Diseases

  • Zhou Z
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Abstract

Since first identified in 2010, Piezo proteins have been found to perform as pore-forming mechanosensitive ion channels across a wide range of animals. As a Piezo ortholog primarily expressed in mammalian systems, Piezo1 has been observed to distribute mainly in nonsensory tissues, regulating osmotic homeostasis, proprioception, and light touch. With previous studies on the putative structure of Piezo1, the gating system and several mechanotransduction mechanisms have been proposed. Besides, mutations of specific amino acid sequences in Piezo1 have been linked to several human diseases such as dehydrated hereditary xerocytosis (DHS) and congenital lymphatic dysplasia (CLD). However, most of these mutations have not been well characterized. To further elucidate the relations between these mutations and diseases, UCSF Chimera is used as the tool to visualize the structural importance of each of these mutated amino acids. With the aid from UCSF Chimera, this study has recorded and interpreted clashes and contacts originated from each of the mutations. Accordingly, specific mechanisms between mutations and human diseases are proposed, which pave the way for healing.

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Zhou, Z. (2019). Structural Analysis of Piezo1 Ion Channel Reveals the Relationship between Amino Acid Sequence Mutations and Human Diseases. Journal of Biosciences and Medicines, 07(12), 139–155. https://doi.org/10.4236/jbm.2019.712012

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