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  5. Proctolin

Proctolin is an endogenous pentapeptide that acts as an excitatory neuromodulator.

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Custom Peptide Synthesis

Proctolin Chemical Structure

Proctolin Chemical Structure

CAS No. : 57966-42-4

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Based on 1 publication(s) in Google Scholar

Proctolin Related Antibodies

Top Publications Citing Use of Products

1 Publications Citing Use of MCE Proctolin

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Proctolin is an endogenous pentapeptide that acts as an excitatory neuromodulator.

In Vitro

Proctolin can increase the frequency of action potentials, increase the amplitude of muscle contraction, and initiate activity in quiescent systems[1]. In the arthropods, Proctolin acts as a neuromodulator and possibly as a neurohormone. It does not appear to function as a conventional neurotransmitter[2]. Proctolin is a pentapeptide with the mature peptide of RYLPT, and it is the first insect neuropeptide to be sequenced and chemically characterized. The first identification of a Proctolin precursor gene is CG7105 in D. melanogaster. Although a previous study showed that Proctolin is absent in B. mori, this pentapeptide is recently identified in a proteomic analysis of B. mori wings. However, the Bombyx Proctolin gene does not produce a mature peptide because cleavage sites are not present at the N-terminal and C-terminal of the RYLPT sequence, and a similar gene is observed in C. suppressalis. Therefore, a true Proctolin has been considered to be not observed in B. mori and C. suppressalis[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Proctolin Related Antibodies
Molecular Weight

648.75

Formula

C30H48N8O8
CAS No.
Appearance

Solid

Color

White to off-white

Sequence

Arg-Tyr-Leu-Pro-Thr
Sequence Shortening

RYLPT
Structure Classification
Initial Source

Periplaneta americana
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (154.14 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.5414 mL 7.7071 mL 15.4143 mL
5 mM 0.3083 mL 1.5414 mL 3.0829 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  PBS

    Solubility: ≥ 100 mg/mL (154.14 mM); Clear solution

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 1.5414 mL 7.7071 mL 15.4143 mL 38.5356 mL
5 mM 0.3083 mL 1.5414 mL 3.0829 mL 7.7071 mL
10 mM 0.1541 mL 0.7707 mL 1.5414 mL 3.8536 mL
15 mM 0.1028 mL 0.5138 mL 1.0276 mL 2.5690 mL
20 mM 0.0771 mL 0.3854 mL 0.7707 mL 1.9268 mL
25 mM 0.0617 mL 0.3083 mL 0.6166 mL 1.5414 mL
30 mM 0.0514 mL 0.2569 mL 0.5138 mL 1.2845 mL
40 mM 0.0385 mL 0.1927 mL 0.3854 mL 0.9634 mL
50 mM 0.0308 mL 0.1541 mL 0.3083 mL 0.7707 mL
60 mM 0.0257 mL 0.1285 mL 0.2569 mL 0.6423 mL
80 mM 0.0193 mL 0.0963 mL 0.1927 mL 0.4817 mL
100 mM 0.0154 mL 0.0771 mL 0.1541 mL 0.3854 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Proctolin57966-42-4OthersInhibitorinhibitorinhibit

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