| Bioactivity | DALDA TFA is a potent and highly selective μ-opioid receptor agonist with a Ki of 1.69 nM. DALDA TFA shows antinociceptive and respiratory effects[1]. |
| Invitro | DALDA carrys a net positive charge (3+) at physiological pH and is thus hydrophilic and more polar than morphine[1]. 0 --> DALDA TFA 相关抗体: |
| In Vivo | DALDA (0-7 nmol/rat; i.t.; once) shows antinociceptive and respiratory effects in rats[1].DALDA (0.1 and 1.0 μg/side; ICV; once) results in biphasic effects, with an initial suppression, an intermediate marked inhibition, followed by activation for horizontal movement, rearing and stereotypy times in rats[2]. |
| Name | DALDA TFA |
| Sequence | Tyr-{d-Arg}-Phe-Lys-NH2 |
| Shortening | Y-{d-Arg}-FK-NH2 |
| Formula | C30H45N9O5.xC2HF3O2 |
| Molar Mass | 611.74 (free base) |
| 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]. Shimoyama M, et al. Antinociceptive and respiratory effects of intrathecal H-Tyr-D-Arg-Phe-Lys-NH2 (DALDA) and [Dmt1] DALDA. Journal of Pharmacology and Experimental Therapeutics, 2001, 297(1): 364-371. [2]. Meyer ME, et al. DALDA (H-Tyr-D-Arg-Phe-Lys-NH2), a potent mu-opioid peptide agonist, affects various patterns of locomotor activities. Pharmacol Biochem Behav. 1995 May;51(1):149-51. |