SML1426

Gap19 trifluoroacetate salt

≥95% (HPLC)

• Synonym(s): KQIEIKKFK trifluoroacetate salt, L-lLysyl-L-glutaminyl-L-isoleucyl-L-α-glutamyl-L-isoleucyl-L-lysyl-L-lysyl-L-phenylalanyl--L-lysine, Lys-Gln-Ile-Glu-Ile-Lys-Lys-Phe-Ly trifluoroacetate salt
• Empirical Formula (Hill Notation): C₅₅H₉₆N₁₄O₁₃ · xC₂HF₃O₂
• CAS Number: 1507930-57-5
• Molecular Weight: 1161.44 (free base basis)
• UNSPSC Code: 12352202
• NACRES: NA.77
• Assay: ≥95% (HPLC)
• Form: powder

Properties

• Quality Segment: 100
• assay: ≥95% (HPLC)
• form: powder
• color: white to off-white
• shipped in: wet ice
• storage temp.: −20°C
• SMILES string: N([C@@H]([C@H](CC)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CCCCN)C(=O)O)C(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](N)CCCCN)CCC(=O)N)[C@H](CC)C)CCC(=O)O
• InChI: 1S/C55H96N14O13/c1-5-33(3)45(69-51(77)40(25-27-44(71)72)65-54(80)46(34(4)6-2)68-50(76)39(24-26-43(61)70)62-47(73)36(60)20-10-14-28-56)53(79)64-38(22-12-16-30-58)48(74)63-37(21-11-15-29-57)49(75)67-42(32-35-18-8-7-9-19-35)52(78)66-41(55(81)82)23-13-17-31-59/h7-9,18-19,33-34,36-42,45-46H,5-6,10-17,20-32,56-60H2,1-4H3,(H2,61,70)(H,62,73)(H,63,74)(H,64,79)(H,65,80)(H,66,78)(H,67,75)(H,68,76)(H,69,77)(H,71,72)(H,81,82)/t33-,34-,36-,37-,38-,39-,40-,41-,42-,45-,46-/m0/s1
• InChI key: IEAKEKFIXUZWEH-PKMKMBMKSA-N

Description

Application

Gap19 trifluoroacetate salt has been used to inhibit Ca²⁺/calmodulin (CaM) gating response of connexin 43 (Cx43) gap junctions.

Biochem/physiol Actions

Gap19, nonapeptide from the cytoplasmic loop of Connexin-43, is a selective blocker of connexin 43 (Cx43) hemichannel that does not block GJ or Cx40/Panx-1 channels in cardiomyocytes and astrocytes. Gap19 prevents Cx43 hemichannel opening and protect against myocardial ischemia/reperfusion injury.

Gap19, nonapeptide from the cytoplasmic loop of Connexin-43, is a selective blocker of connexin 43 (Cx43) hemichannel.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable