Cayman Nat-20(S)-yne

Smoothened (SMO) is a GPCR-like receptor which, with Patched, mediates hedgehog signaling to regulate gene expression through the Gli transcription factors.¹ 20(S)-hydroxy Cholesterol (20(S)-OHC) is an oxysterol which binds SMO and activates hedgehog signaling (EC₅₀ = 3 μM), and this activation is selective for the nat-20(S)-OHC enantiomer.² Nat-20(S)-OHC synergizes with the SMO agonist SAG, suggesting an allosteric effect.² Nat-20(S)-yne is a form of nat-20(S)-OHC with a terminal alkyne group, which can be used in linking reactions known as click chemistry. Click chemistry involves highly dependable and specific azide-alkyne bioconjugation reactions and can be used to capture or immobilize bioactive molecules.^3,4 Thus, nat-20(S)-yne has been conjugated with magnetic beads to demonstrate that nat-20(S)-OHC directly binds SMO.²

WARNING This product is not for human or veterinary use.