| Bioactivity | Astressin 2B is a potent and selective corticotropin-releasing factor receptor 2 (CRF2) antagonist, with the IC50 values of 1.3 nM and > 500 nM for CRF2 and CRF1, respectively. Astressin 2B antagonizes CRF2-mediated inhibition of gastric emptying[1][2][3]. |
| Name | Astressin 2B |
| CAS | 681260-70-8 |
| Sequence | Ac-Asp-Leu-Ser-{d-Phe}-His-{a-methyl-Leu}-Leu-Arg-Lys-{Nle}-Ile-Glu-Ile-Glu-Lys-Gln-Glu-Lys-Glu-Lys-Gln-Gln-Ala-{g-Glu}-Asn-Asn-Leu-Leu-Leu-Asp-{a-methyl-Leu}-Ile-NH2 (Lactam bridge: Glu24-Lys27) |
| Shortening | Ac-Asp-LS-{d-Phe}-H-{a-methyl-Leu}-LRK-{Nle}-IEIEKQEKEKQQA-{g-Glu}-NNKLLLD-{a-methyl-Leu}-I-NH2 (Lactam bridge:Glu24-Lys27) |
| Formula | C183H307N49O53 |
| Molar Mass | 4041.69 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. Rivier J, et al. Potent and long-acting corticotropin releasing factor (CRF) receptor 2 selective peptide competitive antagonists. J Med Chem. 2002;45(21):4737-4747. [2]. Hoare SR, et al. Peptide ligand binding properties of the corticotropin-releasing factor (CRF) type 2 receptor: pharmacology of endogenously expressed receptors, G-protein-coupling sensitivity and determinants of CRF2 receptor selectivity. Peptides. 2005;26(3):457-470. [3]. Henry B, et al. The effect of lateral septum corticotropin-releasing factor receptor 2 activation on anxiety is modulated by stress. J Neurosci. 2006;26(36):9142-9152. |
Astressin 2B
CAS: 681260-70-8 F: C183H307N49O53 W: 4041.69
Astressin 2B is a potent and selective corticotropin-releasing factor receptor 2 (CRF2) antagonist, with the IC50 values
Sales Email：peptidedb@qq.com
This product is for research use only, not for human use. We do not sell to patients.