For research use only. Not for therapeutic Use.
Neurokinin A (4-10) TFA is a tachykinin NK2 receptor agonist[1].
Neurokinin A (NKA) and its truncated form NKA(4-10) are potent spasmogens of human colon circular muscle, an action mediated exclusively via tachykinin NK2 receptors. A structure-activity study of the neurokinin A (NKA) fragment NKA(4-10) is performed to investigate the importance of amino acid residues for receptor efficacy, potency and affinity at the NK2 receptor in human colon circular muscle. A high density of NK2 receptors has been demonstrated in this tissue, using in vitro autoradiography and radioligand binding[1].
| Catalog Number | I046224 |
| Synonyms | (3S)-3-amino-4-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[2-[[(2S)-1-[[(2S)-1-amino-4-methylsulfanyl-1-oxobutan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-4-oxobutanoic acid;2,2,2-trifluoroacetic acid |
| Molecular Formula | C36H55F3N8O12S |
| Purity | ≥95% |
| InChI | InChI=1S/C34H54N8O10S.C2HF3O2/c1-18(2)13-23(31(49)39-22(29(36)47)11-12-53-5)38-26(44)16-37-34(52)28(19(3)4)42-32(50)24(14-20-9-7-6-8-10-20)40-33(51)25(17-43)41-30(48)21(35)15-27(45)46;3-2(4,5)1(6)7/h6-10,18-19,21-25,28,43H,11-17,35H2,1-5H3,(H2,36,47)(H,37,52)(H,38,44)(H,39,49)(H,40,51)(H,41,48)(H,42,50)(H,45,46);(H,6,7)/t21-,22-,23-,24-,25-,28-;/m0./s1 |
| InChIKey | DGAULPBEJYPPKO-CVZMTQALSA-N |
| SMILES | CC(C)CC(C(=O)NC(CCSC)C(=O)N)NC(=O)CNC(=O)C(C(C)C)NC(=O)C(CC1=CC=CC=C1)NC(=O)C(CO)NC(=O)C(CC(=O)O)N.C(=O)(C(F)(F)F)O |
| Reference | [1]. Warner FJ, et al. Structure-activity relationship of neurokinin A(4-10) at the human tachykinin NK(2) receptor: the effect of amino acid substitutions on receptor affinity and function. Biochem Pharmacol. 2002 Jun 15;63(12):2181-6. |
