Dynorphin A (1-10) (TFA) 是一种内源性的阿片样神经肽，与 κ 阿片受体 (κ-opioid receptor) 结合。Dynorphin A (1-10) (TFA) 也阻断 NMDA 激活的电流，IC₅₀ 为 42.0 μM。

Dynorphin A (1-10) (TFA), an endogenous opioid neuropeptide, binds to extracellular loop 2 of the κ-opioid receptor. Dynorphin A (1-10) (TFA) also blocks NMDA-activated current with an IC 50 of 42.0 μM.

Solid

NMDA Receptor κ Opioid Receptor/KOR

Dynorphin A (1-10) (TFA), an endogenous opioid neuropeptide, 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.

Room temperature in continental US; may vary elsewhere.

Sealed storage, away from moisturePowder -80°C 2 years；-20°C 1 year

YGGFLRRIRP

Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-Arg-Pro

[1]. Paterlini G, et al. Molecular simulation of dynorphin A-(1-10) binding to extracellular loop 2 of the kappa-opioidreceptor. A model for receptor activation. J Med Chem. 1997 Sep 26;40(20):3254-62.
[2]. Chen L, et al. Dynorphin block of N-methyl-D-aspartate channels increases with the peptide length. J Pharmacol Exp Ther. 1998 Mar;284(3):826-31.

In Vitro: DMSO : 100 mg/mL (74.16 mM; Need ultrasonic)H₂O : 50 mg/mL (37.08 mM; Need ultrasonic)配制储备液