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Gap19

  Cat. No.:  DC29103   Featured
Chemical Structure
1507930-57-5
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Field of application
Gap19, a peptide derived from nine amino acids of the Cx43 cytoplasmic loop (CL), is a potent and selective connexin 43 (Cx43) hemichannel blocker. Gap19 inhibits hemichannels caused by preventing intramolecular interactions of the C-terminus (CT) with the CL. Gap19 is not blocking GJ channels or Cx40/pannexin-1 hemichannels. Gap19 has protective effects against myocardial.
Chemicals PropertiesBiological activity COA & MSDSRelated productsDatasheet
Cas No.: 1507930-57-5
Chemical Name: Gap19
Synonyms: Gap19;(2S)-6-Amino-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S,3S)-2-[[(2S)-2-[[(2S,3S)-2-[[(2S)-5-;Gap19
SMILES: O=C([C@H]([C@@H](C)CC)NC([C@H](CCC(=O)O)NC([C@H]([C@@H](C)CC)NC([C@H](CCC(N)=O)NC([C@H](CCCCN)N)=O)=O)=O)=O)N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(=O)O)CCCCN)=O)CC1C=CC=CC=1)=O)CCCCN)=O)CCCCN
Formula: C55H96N14O13
M.Wt: 1161.43675327301
Purity: >98%
Sotrage: 2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO
Description: Gap19, a peptide derived from nine amino acids of the Cx43 cytoplasmic loop (CL), is a potent and selective connexin 43 (Cx43) hemichannel blocker. Gap19 inhibits hemichannels caused by preventing intramolecular interactions of the C-terminus (CT) with the CL. Gap19 is not blocking GJ channels or Cx40/pannexin-1 hemichannels. Gap19 has protective effects against myocardial[1][2].
Target: Cx43 Hemichannel[1]
In Vivo: Gap19 (iv; 25 mg/kg; 10 min before ligation) significantly reduces the infarct size by approximately one-fifth[2]. Animal Model: C57/BL6 mice[2] Dosage: 25 mg/kg Administration: IV; 10 min before ligation Result: Significantly reduced the infarct size by approximately one-fifth.
In Vitro: Gap19 (250 μM; for 30 min ) decreases mitochondrial potassium uptake[1]. Gap19 (400 μM) inhibits unitary hemichannel currents in HeLa-Cx43 cells[2]. Gap19 (100 μM) inhibits hemichannel unitary currents in ventricular cardiomyocytes[2]. Gap19 (250 μM, 30 min) protects against myocardial ischemia/reperfusion injury in vitro and in vivo[2].
References: [1]. Boengler K, et al. Connexin 43 impacts on mitochondrial potassium uptake. Front Pharmacol. 2013 Jun 6;4:73. [2]. Wang N, et al. Selective inhibition of Cx43 hemichannels by Gap19 and its impact on myocardial ischemia/reperfusion injury. Basic Res Cardiol. 2013 Jan;108(1):309.
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MSDS_13153_DC29103_1507930-57-5
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Cat. No. Product name Field of application
DC46690 Gap 27 Gap 27 is a synthetic connexin-mimetic peptide and acts as a gap junction inhibitor. Gap 27 is highly effective in interrupting co-operative cell-cell interactions, such as the synchronous beating of embryonic cardiomyocytes.
DC29103 Gap19 Gap19, a peptide derived from nine amino acids of the Cx43 cytoplasmic loop (CL), is a potent and selective connexin 43 (Cx43) hemichannel blocker. Gap19 inhibits hemichannels caused by preventing intramolecular interactions of the C-terminus (CT) with the CL. Gap19 is not blocking GJ channels or Cx40/pannexin-1 hemichannels. Gap19 has protective effects against myocardial.
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