[Lys8, Lys9]-Neurotensin (8-13) (JMV438), a Neurotensin analog, exerts its analgesic effects through activation of the G protein-coupled receptors NTS1 and NTS2, with Ki values of 0.33 nM and 0.95 nM for hNTS1 and hNTS2 receptors, respectively.

6-Hydroxykynurenic acid (6-HKA) is a derivative of kynurenic acid (KYNA) and can be isolated from Ginkgo leaves. 6-Hydroxykynurenic acid is a low-affinity NMDAR antagonist (IC50: 59 μM).

Phalloidin, a bicyclic heptapeptide found in Gooseberry, is involved in F-actin staining. Phalloidin is a compound that irreversibly polymerizes actin into microfilaments.