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HighlightsIntroduction of PANX1
Pannexin 1 (PANX1), belonging to the pannexin family, is encoded by the PANX1 gene in humans. PANX1 is a membrane protein with 4 transmembrane domains and cytoplasmic N and C termini. PANX1 is widely expressed in eye, thyroid, prostate, kidney, liver, and central nervous system, including cortex, striatum, olfactory bulb, hippocampus, thalamus, and cerebellum. PANX1 gene is mapped to chromosome 11q21. Studies in Xenopus oocytes suggest that PANX1 alone and in combination with PANX2 may form cell type-specific gap junctions with distinct properties. An important paralog of this gene is PANX3.
| Basic Information of PANX1 | |
| Protein Name | Pannexin-1 |
| Gene Name | PANX1 |
| Aliases | PANX1, MRS1, UNQ2529/PRO6028 |
| Organism | Homo sapiens (Human) |
| UniProt ID | Q96RD7 |
| Transmembrane Times | 4 |
| Length (aa) | 426 |
| Sequence | MAIAQLATEYVFSDFLLKEPTEPKFKGLRLELAVDKMVTCIAVGLPLLLISLAFAQEISIGTQISCFSPSSFSWRQAAFVDSYCWAAVQQKNSLQSESGNLPLWLHKFFPYILLLFAILLYLPPLFWRFAAAPHICSDLKFIMEELDKVYNRAIKAAKSARDLDMRDGACSVPGVTENLGQSLWEVSESHFKYPIVEQYLKTKKNSNNLIIKYISCRLLTLIIILLACIYLGYYFSLSSLSDEFVCSIKSGILRNDSTVPDQFQCKLIAVGIFQLLSVINLVVYVLLAPVVVYTLFVPFRQKTDVLKVYEILPTFDVLHFKSEGYNDLSLYNLFLEENISEVKSYKCLKVLENIKSSGQGIDPMLLLTNLGMIKMDVVDGKTPMSAEMREEQGNQTAELQGMNIDSETKANNGEKNARQRLLDSSC |
Function of PANX1 Membrane Protein
PANX1 is able to support large, voltage-activated outward currents to respond to a variety of physiological stimuli, including low oxygen or shear stress in erythrocytes and mechanical action on airway epithelial cells. Several receptors have been shown to activate PANX1 through protein-protein interaction or by the use of intracellular stimuli such as Ca2+ or extracellular K+. Notably, the activation by K+ does not require the depolarization effect of the ion and the K+ concentration required to activate PANX1 is unphysiologically high, such concentrations are observed under pathological conditions, such as stroke or traumatic CNS injury. In addition, PANX1 is permeant to ATP and can represent the elusive ATP release channel in many tissues. It is documented that truncating mutations in PANX1 gene have been shown to promote breast cancer metastasis to the lungs by allowing cancer cells to survive mechanical stretch in the microcirculation. Disruptions of PANX1 are associated with melanoma tumor progression.
Fig.1 Stimulus-dependent open conformations of the hexameric Panx1 channel. (Dahl, 2018)
Application of PANX1 Membrane Protein in Literature
This study demonstrates the existence of a Panx1-dependent mechanosensitive mechanism that not only modulates ATP signaling but also coordinates Wnt/β-catenin signaling, which is essential for proper skeletal response to mechanical loading.
This article identifies Pannexin-1 as a protein highly expressed in HDLECs. PANX1 is required during in vitro lymphangiogenesis.
This article reveals that probenecid disrupts a novel interaction between Panx1 and the microtubule stabilizer - Crmp2, and also increases microtubule stability.
This article discovers a significant up-regulation of Panx3 in mice with a global ablation of Panx1, extending previous reports on the up-regulation of Panx3 in arterial walls and the skin of Panx1 KO mice.
This article indicates that Panx1 is involved in the regulation of ATP release from hypoxic cells, and reducing this ATP release may protect kidneys from AKI.
PANX1 Preparation Options
We provide custom membrane protein preparation services for worldwide customers. Leveraging by our advanced Magic™ membrane protein production platform, we are able to present target membrane protein in multiple active formats. Our professional scientists are happy to help you find an ideal method and make your project a success. Aided by our versatile Magic™ anti-membrane protein antibody discovery platform, we also provide customized anti-PANX1 antibody development services.
Creative Biolabs provides high-quality membrane protein preparation service to facilitate the development of worldwide customer’s research. During the past years, we have successfully established a powerful Magic™ membrane protein platform which enables us to provide a series of membrane protein preparation services. For more detailed information, please feel free to contact us.
Reference
All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.
