208735

Calmodulin Inhibitory Peptide

The Calmodulin Inhibitory Peptide controls the biological activity of Calmodulin. This small molecule/inhibitor is primarily used for Cell Signaling applications.

• Synonym(s): Calmodulin Inhibitory Peptide, MLCK Peptide, MLCKP
• Empirical Formula (Hill Notation): C₉₁H₁₅₆N₃₆O₂₀
• Molecular Weight: 2074.44
• NACRES: NA.77
• UNSPSC Code: 12352202
• Assay: ≥95% (HPLC)
• Form: lyophilized
• Storage condition: OK to freeze, desiccated (hygroscopic)

Properties

• Quality Segment: 100
• assay: ≥95% (HPLC)
• form: lyophilized
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze, desiccated (hygroscopic)
• solubility: water: 50 mg/mL
• shipped in: ambient
• storage temp.: −20°C

Description

General description

A 17-residue peptide based on the calmodulin-binding domain of myosin light chain kinase (MLCK). Binds to calmodulin with high affinity (K_d = 6 pM). Inhibits calmodulin activation of MLCK-catalyzed phosphorylation of smooth muscle regulatory light chain(MLC).

Biochem/physiol Actions

Cell permeable: no

Kd = 6 pM in binding to calmodulin

Primary Target
Calmodulin

Product does not compete with ATP.

Reversible: no

Physical form

Supplied as a trifluoroacetate salt.

Preparation Note

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Ac-Arg-Arg-Lys-Trp-Gln-Lys-Thr-Gly-His-Ala-Val-Arg-Ala-Ile-Gly-Arg-Leu-NH₂

Torok,K., et al. 1998. Biochemistry 37, 6188.
Török, K., and Trentham, D.R. 1994. Biochemistry33, 12807.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable