(Thr4,Gly7)-Oxytocin

• CAT Number: I043225
• CAS Number: 60786-59-6
• Molecular Formula: C39H61N11O12S2
• Molecular Weight: 940.10
• Purity: ≥95%
• Synonyms: (4R,7S,10S,13S,16S,19R)-19-amino-7-(2-amino-2-oxoethyl)-N-[2-[[(2S)-1-[(2-amino-2-oxoethyl)amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]-13-[(2S)-butan-2-yl]-10-[(1R)-1-hydroxyethyl]-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carboxamide
• InChI: InChI=1S/C39H61N11O12S2/c1-6-19(4)31-38(61)50-32(20(5)51)39(62)47-26(13-28(41)53)36(59)48-27(35(58)44-15-30(55)45-24(11-18(2)3)34(57)43-14-29(42)54)17-64-63-16-23(40)33(56)46-25(37(60)49-31)12-21-7-9-22(52)10-8-21/h7-10,18-20,23-27,31-32,51-52H,6,11-17,40H2,1-5H3,(H2,41,53)(H2,42,54)(H,43,57)(H,44,58)(H,45,55)(H,46,56)(H,47,62)(H,48,59)(H,49,60)(H,50,61)/t19-,20+,23-,24-,25-,26-,27-,31-,32-/m0/s1
• InChIKey: XQAKKLKDUOWUIU-IKNHWLCZSA-N
• SMILES: CCC(C)C1C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)N1)CC2=CC=C(C=C2)O)N)C(=O)NCC(=O)NC(CC(C)C)C(=O)NCC(=O)N)CC(=O)N)C(C)O

(Thr4,Gly7)-Oxytocin, an Oxytocin analogue, is a specific OT receptor agonist. (Thr4,Gly7)-Oxytocin also excites subicular neurons via activation of TRPV1 channels, and depression of K+ channels. [1][2].
(Thr4,Gly7)-Oxytocin (1 μM, 1 min) evokes an inward current of 5.9 pA in paraventricular thalamus (PVT) neurons[1].
(Thr4,Gly7)-Oxytocin (1 μM, 1 min) increases spontaneous excitatory postsynaptic currents (sEPSCs) frequency in PVT neurons[1].
(Thr4,Gly7)-Oxytocin (0.3 μM, 5 min) induces depolarization in both bursting cells and regular firing cells[2].
(Thr4,Gly7)-Oxytocin (0.3 μM, 5 min) depolarizes subicular neurons by activating TRPV1 channels[2].
(Thr4,Gly7)-Oxytocin (1 μM, direct intra-PVT infusion for 1 min) evokes depolarization on TGOT-responsive neurons in mice[1].
(Thr4,Gly7)-Oxytocin (100 ng, intracerebroventrical injection) increases nitric oxide production in the paraventricular nucleus of the hypothalamus of male rats[3].

Reference

[1]. Lily R Barrett, et al. Oxytocin activation of paraventricular thalamic neurons promotes feeding motivation to attenuate stress-induced hypophagia. Neuropsychopharmacology. 2021 Apr;46(5):1045-1056.
 [Content Brief]

[2]. Binqi Hu, et al. Activation of Oxytocin Receptors Excites Subicular Neurons by Multiple Signaling and Ionic Mechanisms. Cereb Cortex. 2021 Mar 31;31(5):2402-2415.
 [Content Brief]

[3]. M R Melis, et al. Oxytocin increases nitric oxide production in the paraventricular nucleus of the hypothalamus of male rats: correlation with penile erection and yawning. Regul Pept. 1997 Mar 26;69(2):105-11.
 [Content Brief]