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Overview
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Connexin43 hemichannel inhibitor.
TAT-Gap19 is a connexin43 (Cx43) hemichannel blocker, with an IC50 of 7 μM and no significant affinity for gap junctions or Panx1 channels. TAT-Gap19 is derived from Gap19, a sequence present on the intracellular cytoplasmic loop domain of Cx43, linked to the HIV-derived TAT internalization sequence to promote membrane permeability, which also allows brain penetration. In mouse models of liver damage, TAT-Gap19 can protect against liver fibrosis accompanied by superoxide dismutase overactivation and reduces production of inflammatory proteins.
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- Properties
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Overview