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Pharmaceutical Peptides

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Product Name:Dynorphin Acetate

CAS:80448-90-4

MF:C99H155N31O23

MW:2147.52

Dynorphin A (1-10) acetate is an endogenous opioid neuropeptide, binds to extracellular loop 2 of the κ-opioid receptor. Dynorphin A (1-10) also blocks NMDA-activated current with an IC50 of 42.0 μM.

Dynorphin A (1-10) binds in the transmembrane domain of the κ-receptor. The non-opioid actions of various forms of Dynorphin A (DynA) are examined on N-methyl-D-aspartate (NMDA) receptor channels in isolated rat trigeminal neurons using the whole-cell patch recording technique. All the dynorphins tested blocked NMDA-activated currents. The blocking actions are voltage-independent. The IC50 is 42.0 μM for DynA(1-10). To determine if shorter dynorphins have the similar blocking property, we examined the action of DynA(1-10) at different membrane potentials. DynA(1-10) blocks INMDA to a similar extent as the membrane potentials changed from -80 to +60 mV. Thus, despite a 160-fold difference in the apparent affinities, DynA(1-32) and DynA(1-10) both exert voltage-independent actions on NMDA receptors.

Dynorphin A, Prodynorphin (207-223) (human), Prodynorphin (209-225) (porcine) 80448-90-4 H-Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-Arg-Pro-Lys-Leu-Lys-Trp-Asp-Asn-Gln-OH
Dynorphin A (1-6), Leu-Enkephalin-Arg 75106-70-6 H-Tyr-Gly-Gly-Phe-Leu-Arg-OH
Dynorphin A (1-7), Leu-Enkephalin-Arg-Arg 77101-32-7 H-Tyr-Gly-Gly-Phe-Leu-Arg-Arg-OH
(Phe7)-Dynorphin A (1-7), Leu-Enkephalin-Arg-Phe 79358-92-2 H-Tyr-Gly-Gly-Phe-Leu-Arg-Phe-OH
(Phe7)-Dynorphin A (1-7) amide, Leu-Enkephalin-Arg-Phe amide 80690-78-4 H-Tyr-Gly-Gly-Phe-Leu-Arg-Phe-NH2
Dynorphin A (1-8) 75790-53-3 H-Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-OH

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