| Identification | Back Directory | [Name]
TAT-Gap19 | [CAS]
1507930-54-2 | [Synonyms]
TAT-Gap19
L-Lysine, L-tyrosylglycyl-L-arginyl-L-lysyl-L-lysyl-L-arginyl-L-arginyl-L-glutaminyl-L-arginyl-L-arginyl-L-arginyl-L-lysyl-L-glutaminyl-L-isoleucyl-L-α-glutamyl-L-isoleucyl-L-lysyl-L-lysyl-L-phenylalanyl- | [Molecular Formula]
C119H212N46O26 | [MDL Number]
MFCD30742955 | [MOL File]
1507930-54-2.mol | [Molecular Weight]
2703.3 |
| Chemical Properties | Back Directory | [density ]
1.46±0.1 g/cm3(Predicted) | [storage temp. ]
Store at -20°C | [solubility ]
Soluble in DMSO | [form ]
Solid | [color ]
White to off-white | [Water Solubility ]
Soluble to 1 mg/ml in water |
| Hazard Information | Back Directory | [Uses]
TAT-Gap19, a Cx mimetic peptide, is a specific connexin43 hemichannel (Cx43 HC) inhibitor. TAT-Gap19 does not inhibits the corresponding Cx43 GJCs. TAT-Gap19 traverses the blood-brain barrier and alleviate liver fibrosis in mice[1][2][3]. | [Biological Activity]
TAT-Gap19 is a cell penetrant analog of a connexin 43 (Cx43) hemichannels selective blocker Gap19. TAT-Gap19 inhibits TAT-Gap19 in mice brain without affecting gap junction channels. | [in vivo]
A single injection of TAT-Gap19 (i.v. via the tail vein; 55 mg/kg) produces significant immune signal in the brain 24 h later in 4 months old C57Bl6 male mice[1].
TAT-Gap19 (1 mg/kg/day; an osmotic pump implanted in the peritoneal cavity; Two weeks) shows significantly decreased collagen deposition, as well as lowed amounts of α-SMA-positive cells area in mice subjected to treatment with 100-200 mg thioacetamide (TAA)/kg body weight for eight weeks[2].
| [storage]
Store at -20°C | [References]
[1] Verónica Abudara, et al. The connexin43 mimetic peptide Gap19 inhibits hemichannels without altering gap junctional communication in astrocytes. Front Cell Neurosci. 2014 Oct 21;8:306. DOI:10.3389/fncel.2014.00306
[2] Sara Crespo Yanguas, et al. TAT-Gap19 and Carbenoxolone Alleviate Liver Fibrosis in Mice. Int J Mol Sci. 2018 Mar 12;19(3):817. DOI:10.3390/ijms19030817
[3] Laura Walrave, et al. Inhibition of astroglial connexin43 hemichannels with TAT-Gap19 exerts anticonvulsant effects in rodents. Glia. 2018 Aug;66(8):1788-1804. DOI:10.1002/glia.23341 |
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