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Submit ReviewGap 26
Description: Gap junction blocker; inhibits smooth muscle contraction and IP3-mediated ATP release
Purity: ≥95% (HPLC)
Biological Activity for Gap 26
Gap 26 is a peptide, corresponding to residues 63 - 75 of connexin 43, which is a gap junction blocker. Attenuates rhythmic contractile activity of rabbit arterial smooth muscle (IC50 = 28.4 μM). Also inhibits IP3-induced ATP release, without inhibiting gap junctional coupling in endothelial cells.
Technical Data for Gap 26
| M. Wt | 1550.79 |
| Formula | C70H107N19O19S |
| Sequence | VCYDKSFPISHVR |
| Storage | Store at -20°C |
| Purity | ≥95% (HPLC) |
| CAS Number | 197250-15-0 |
| PubChem ID | 25088334 |
| InChI Key | FDPIMWZHGJNESB-VCSXYVMHSA-N |
| Smiles | [H]N[C@@H](C(C)C)C(=O)N[C@@H](CS)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N1CCC[C@H]1C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC1=CNC=N1)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(O)=O |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Product Datasheets for Gap 26
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References for Gap 26
References are publications that support the biological activity of the product.
Braet et al (2003) Photoliberating inositol-1,4,5-trisphosphate triggers ATP release that is blocked by the connexin mimetic peptide gap 26. Cell Calcium 33 37 PMID: 12526886
Chaytor et al (1997) Peptides homologous to extracellular loop motifs of connexin 43 reversibly abolish rhythmic contractile activity in rabbit arteries. J.Physiol. 503 99 PMID: 9288678
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Keywords: Gap 26, Gap 26 supplier, Gap, junction, blockers, connexin, 43, channels, modulators, Gap26, Channels, 1950, Tocris Bioscience
4 Citations for Gap 26
Citations are publications that use Tocris products. Selected citations for Gap 26 include:
Jones et al (2015) Evidence for bystander signalling between human trophoblast cells and human embryonic stem cells. Sci Rep 5 11694 PMID: 26170169
Thuringer et al (2015) Oncogenic extracellular HSP70 disrupts the gap-junctional coupling between capillary cells. BMC Vet Res 6 10267 PMID: 25868858
Almad et al (2016) Connexin 43 in astrocytes contributes to motor neuron toxicity in amyotrophic lateral sclerosis. Glia 64 1154 PMID: 27083773
Sakatani et al (2008) Neural-activity-dependent release of S100B from astrocytes enhances kainate-induced gamma oscillations in vivo. J Neurosci 28 10928 PMID: 18945900
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