1. GPCR/G Protein
  2. Adenylate Cyclase

Small Cardioactive Peptide B SCPB 

Cat. No.: HY-P1495
Handling Instructions

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.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Small Cardioactive Peptide B SCPB Chemical Structure

Small Cardioactive Peptide B SCPB Chemical Structure

CAS No. : 84746-43-0

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1 mg USD 70 Get quote
5 mg USD 210 Get quote
10 mg USD 330 Get quote

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  • Biological Activity

  • Technical Information

  • Purity & Documentation

  • References

Description

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.

IC50 & Target

EC50: 0.1 μM (adenylate cyclase, in heart tissues), 1.0 μM (adenylate cyclase, in gill tissues)[1]

In Vitro

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].

Solvent & Solubility
In Vitro: 

10 mM in H2O

Preparing
Stock Solutions
Concentration Solvent Mass 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
*Please refer to the solubility information to select the appropriate solvent.
References
Molecular Weight

1141.41

Formula

C₅₂H₈₀N₁₄O₁₁S₂

CAS No.

84746-43-0

Sequence

Met-Asn-Tyr-Leu-Ala-Phe-Pro-Arg-Met-NH2

Sequence Shortening

MNYLAFPRM-NH2

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Shipping

Room temperature in continental US; may vary elsewhere

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Product Name:
Small Cardioactive Peptide B SCPB
Cat. No.:
HY-P1495
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Small Cardioactive Peptide B SCPB

Cat. No.: HY-P1495