CTOP is a peptide that acts as a μ-opioid receptor antagonist.
CAT# | R1808 |
Chemical Structure | |
CAS | 103429-31-8 |
Synonyms/Alias | CTOP, (Tyr3,Orn5,Pen7)-Octreotate amide |
M.F/Formula | C50H67N11O11S2 |
M.W/Mr. | 1062.26 |
Sequence | One Letter Code: FCYW{Orn}T{Pen}T-NH2 (Disulfide bridge:Cys2-Pen7) Three Letter Code: Phe-Cys-Tyr-Trp-{Orn}-Thr-{Pen}-Thr-NH2 (Disulfide bridge:Cys2-Pen7) |
Biological Activity | Potent and selective μ opioid receptor antagonist (Ki values are 0.96 and >10,000 nM for μ and δ receptors respectively). Causes behavioral effects on central administration in vivo. Also increases K+ currents in rat locus ceruleus neurons in vitro via a μ receptor independent mechanism. |
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