1. Stem Cell/Wnt TGF-beta/Smad
  2. PKA
  3. PKI(5-24)

PKI(5-24) is a potent, competitive, and synthetic peptide inhibitor of PKA (cAMP-dependent protein kinase), with a Ki of 2.3 nM. PKI(5-24) corresponds to residues 5-24 in the naturally occurring heat-stable protein kinase inhibitor.

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

PKI(5-24) Chemical Structure

PKI(5-24) Chemical Structure

CAS No. : 99534-03-9

Size Price Stock Quantity
1 mg USD 138 In-stock
5 mg USD 290 In-stock
10 mg USD 490 In-stock
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100 mg   Get quote  

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Customer Review

Based on 3 publication(s) in Google Scholar

Other Forms of PKI(5-24):

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

PKI(5-24) is a potent, competitive, and synthetic peptide inhibitor of PKA (cAMP-dependent protein kinase), with a Ki of 2.3 nM. PKI(5-24) corresponds to residues 5-24 in the naturally occurring heat-stable protein kinase inhibitor[1][2].

In Vitro

PKI(5-24) is a 20-residue peptide has been synthesized that corresponds to the active site of the skeletal muscle inhibitor protein[1].
PKI(5-24) inhibits phosphotransferase activity of the mutant cGMP kinase with higher potency than that of wild type, with Ki values of 42 μΜ and 160 μΜ, respectively[2].

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

Molecular Weight

2222.38

Formula

C94H148N32O31

CAS No.
Unlabeled CAS

Appearance

Solid

Color

White to off-white

Sequence

Thr-Thr-Tyr-Ala-Asp-Phe-Ile-Ala-Ser-Gly-Arg-Thr-Gly-Arg-Arg-Asn-Ala-Ile-His-Asp

Sequence Shortening

TTYADFIASGRTGRRNAIHD

SMILES

OC(C[C@@H](C(O)=O)NC([C@H](CC1=CN=CN1)NC([C@H]([C@@H](C)CC)NC([C@H](C)NC([C@H](CC(N)=O)NC([C@H](CCCNC(N)=N)NC([C@H](CCCNC(N)=N)NC(CNC([C@H]([C@H](O)C)NC([C@H](CCCNC(N)=N)NC(CNC([C@H](CO)NC([C@H](C)NC([C@H]([C@@H](C)CC)NC([C@@H](NC([C@H](CC(O)=O)NC([C@H](C)NC([C@@H](NC([C@H]([C@H](O)C)NC([C@@H](N)[C@H](O)C)=O)=O)CC2=CC=C(C=C2)O)=O)=O)=O)CC3=CC=CC=C3)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O

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 : 25 mg/mL (11.25 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.4500 mL 2.2498 mL 4.4997 mL
5 mM 0.0900 mL 0.4500 mL 0.8999 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
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Volume
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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

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Volume (final)

V2

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

Purity: 99.94%

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 0.4500 mL 2.2498 mL 4.4997 mL 11.2492 mL
5 mM 0.0900 mL 0.4500 mL 0.8999 mL 2.2498 mL
10 mM 0.0450 mL 0.2250 mL 0.4500 mL 1.1249 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.

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Product Name:
PKI(5-24)
Cat. No.:
HY-P0222
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