Cortistatin-14 TFA (CST-14) is a novel and potent cyclic neuropeptide that has structural similarity to somatostatin-14. Cortistatin-14 exerts anticonvulsive, neuroprotective effect and anti-inflammatory activity by binding to the somatostatin receptors (sst1-sst5). Cortistatin (CST-14) is a recently discovered endogenous peptide which shares similarity to somatostatin and binds to somatostatin receptors.
Physicochemical Properties
| Molecular Formula | C81H113N19O19S2 |
| Molecular Weight | 1721.00982 |
| Exact Mass | 1719.79 |
| CAS # | 186901-48-4 |
| Related CAS # | Cortistatin-14 TFA |
| PubChem CID | 16133803 |
| Appearance | White to off-white solid powder |
| LogP | 3.128 |
| Hydrogen Bond Donor Count | 23 |
| Hydrogen Bond Acceptor Count | 25 |
| Rotatable Bond Count | 30 |
| Heavy Atom Count | 121 |
| Complexity | 3400 |
| Defined Atom Stereocenter Count | 15 |
| SMILES | C[C@H]([C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N1)CCCCN)CC2=CNC3=CC=CC=C32)CC4=CC=CC=C4)CC5=CC=CC=C5)CC(=O)N)CCCCN)NC(=O)[C@@H]6CCCN6)C(=O)N[C@@H](CCCCN)C(=O)O)CO)CO)CC7=CC=CC=C7)O |
| InChi Key | DDRPLNQJNRBRNY-WYYADCIBSA-N |
| InChi Code | InChI=1S/C81H113N19O19S2/c1-46(103)67-80(117)95-59(38-49-24-9-4-10-25-49)73(110)96-62(42-101)76(113)97-63(43-102)77(114)99-65(79(116)90-56(81(118)119)30-15-18-34-84)45-121-120-44-64(98-68(105)53-31-19-35-86-53)78(115)89-54(28-13-16-32-82)69(106)94-61(40-66(85)104)75(112)92-57(36-47-20-5-2-6-21-47)71(108)91-58(37-48-22-7-3-8-23-48)72(109)93-60(39-50-41-87-52-27-12-11-26-51(50)52)74(111)88-55(70(107)100-67)29-14-17-33-83/h2-12,20-27,41,46,53-65,67,86-87,101-103H,13-19,28-40,42-45,82-84H2,1H3,(H2,85,104)(H,88,111)(H,89,115)(H,90,116)(H,91,108)(H,92,112)(H,93,109)(H,94,106)(H,95,117)(H,96,110)(H,97,113)(H,98,105)(H,99,114)(H,100,107)(H,118,119)/t46-,53+,54+,55+,56+,57+,58+,59+,60+,61+,62+,63+,64+,65+,67+/m1/s1 |
| Chemical Name | (2S)-6-amino-2-[[(4R,7S,10S,13S,16S,19S,22S,25S,28S,31S,34S,37R)-19,34-bis(4-aminobutyl)-31-(2-amino-2-oxoethyl)-13,25,28-tribenzyl-16-[(1R)-1-hydroxyethyl]-7,10-bis(hydroxymethyl)-22-(1H-indol-3-ylmethyl)-6,9,12,15,18,21,24,27,30,33,36-undecaoxo-37-[[(2S)-pyrrolidine-2-carbonyl]amino]-1,2-dithia-5,8,11,14,17,20,23,26,29,32,35-undecazacyclooctatriacontane-4-carbonyl]amino]hexanoic acid |
| HS Tariff Code | 2934.99.9001 |
| Storage |
Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture. |
| Shipping Condition | Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs) |
Biological Activity
| References |
[1].Braun H, et al. Protective effects of cortistatin (CST-14) against kainate-induced neurotoxicity in rat brain. Brain Res. 1998 Aug 24;803(1-2):54-60. [2].Markovics A, et al. Comparison of the anti-inflammatory and anti-nociceptive effects of cortistatin-14 and somatostatin-14 in distinct in vitro and in vivo model systems. J Mol Neurosci. 2012 Jan;46(1):40-50. |
Solubility Data
| Solubility (In Vitro) | H2O : ~100 mg/mL (~58.14 mM) |
| Solubility (In Vivo) |
Solubility in Formulation 1: 100 mg/mL (58.14 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 0.5811 mL | 2.9053 mL | 5.8105 mL | |
| 5 mM | 0.1162 mL | 0.5811 mL | 1.1621 mL | |
| 10 mM | 0.0581 mL | 0.2905 mL | 0.5811 mL |