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Gap 26

Cat. No. M10042
Gap 26 Structure
Synonym:

GAP26; Val-Cys-Tyr-Asp-Lys-Ser-Phe-Pro-Ile-Ser-His-Val-Arg

Size Price Availability Quantity
5mg USD 165  USD165 In stock
10mg USD 258  USD258 In stock
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Quality Control & Documentation
Biological Activity

Gap 26 is a mimetic peptide corresponding to the residues 63-75 of connexin 43. Photoliberating InsP(3) triggered ATP release that was blocked by buffering intracellular calcium with BAPTA and by applying gap 26. Gap 26, however, did not inhibit the gap junctional coupling between the cells as measured by fluorescence recovery after photobleaching.

Chemical Information
Molecular Weight 1550.78
Formula C70H107N19O19S
CAS Number 197250-15-0
Solubility (25°C) Water 2 mg/mL
Storage -20°C, dry, sealed
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Katleen Braet, et al. Cell Calcium. Photoliberating inositol-1,4,5-trisphosphate triggers ATP release that is blocked by the connexin mimetic peptide gap 26

[2] A T Chaytor, et al. J Physiol. Peptides homologous to extracellular loop motifs of connexin 43 reversibly abolish rhythmic contractile activity in rabbit arteries

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Keywords: Gap 26, GAP26; Val-Cys-Tyr-Asp-Lys-Ser-Phe-Pro-Ile-Ser-His-Val-Arg supplier, inhibitors, activators


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