Small Cardioactive Peptide B SCPB
目录号 : GC31194SmallCardioactivePeptideB(SCPB)是一种神经活性肽,刺激心脏和鳃组织的颗粒组分中的腺苷酸环化酶(adenylatecyclase)活性,EC50分别为0.1和1.0μM。
Cas No.:84746-43-0
Sample solution is provided at 25 µL, 10mM.
Small Cardioactive Peptide B (SCPB), a neurally active peptide, stimulates adenylate cyclase activity in particulate fractions of both heart and gill tissues with EC50s of 0.1 and 1.0 μM, respectively.
Small cardioactive peptide B (SCPB) is a neurally active peptide endogenous to Aplysia. Small cardioactive peptide B (SCPB) possesses cardioexcitatory effects in Aplysia and reported a threshold concentration of 0.01 nM for both native and synthetic Small cardioactive peptide B (SCPB) stimulated effects on the isolated heart. Effects of Small Cardioactive Peptide B (SCPB) on the physiology of the isolated heart and gill preparations from the mollusc Aplysia californica were examined. In addition, the effects of Small Cardioactive Peptide B (SCPB) and FMRFamide (Phe-Met-Arg-Phe-NH2) on adenylate cyclase activity are compared in particulate fractions of heart and gill tissues, respectively. Small Cardioactive Peptide B (SCPB) is found to exert dose-dependent, reversible changes in cardiac activity when perfused through the isolated heart. The EC50 values effecting changes in heart rate and force of contraction are 0.03 and 0.3 nM, respectively; minimum concentrations find to effect changes in heart rate and force of contraction are normally 0.001 and 1 pM, respectively. When perfused through the isolated gill, Small Cardioactive Peptide B (SCPB) is found to suppress the gill withdrawal response amplitude with a threshold concentration of 0.01 pM and an EC50 value of 0.03 nM. Suppression of the gill withdrawal response amplitude by Small Cardioactive Peptide B (SCPB)is found to be dose dependent and reversible up to a concentration of 1nM. At higher concentrations, the suppression tended to persist irreversibly. Small Cardioactive Peptide B (SCPB) stimulates adenylate cyclase activity in particulate fractions of both heart and gill tissues with an EC50 of 0.1 and 1.0μM, respectively[1].
[1]. Cawthorpe DR, et al. The effects of small cardioactive peptide B on the isolated heart and gill of Aplysia californica. Can J Physiol Pharmacol. 1985 Aug;63(8):918-24.
Cas No. | 84746-43-0 | SDF | |
Canonical SMILES | Met-Asn-Tyr-Leu-Ala-Phe-Pro-Arg-Met-NH2 | ||
分子式 | C52H80N14O11S2 | 分子量 | 1141.41 |
溶解度 | H2O : 50 mg/mL (43.81 mM; Need ultrasonic) | 储存条件 | Store at -20°C, protect from light, stored under nitrogen |
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1 mg | 5 mg | 10 mg | |
1 mM | 0.8761 mL | 4.3805 mL | 8.7611 mL |
5 mM | 0.1752 mL | 0.8761 mL | 1.7522 mL |
10 mM | 0.0876 mL | 0.4381 mL | 0.8761 mL |
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2.
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