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Calmodulin Protein, Human

Cat. No.: HY-P7710
COA Handling Instructions

Calmodulin Protein, Human is a recombinant human Calmodulin expressed in E. coli. Calmodulin is a low molecular weight, acidic, calcium binding protein which mediates the Ca2+ regulation of a wide range of physiological processes throughout eukaryotic organisms.

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

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Size Price Stock Quantity
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5 μg $53 In-stock
10 μg $89 In-stock
50 μg $250 In-stock
100 μg $400 In-stock
500 μg $950 In-stock
1 mg $1250 In-stock

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Top Publications Citing Use of Products
  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

  • References

Description

Calmodulin Protein, Human is a recombinant human Calmodulin expressed in E. coli. Calmodulin is a low molecular weight, acidic, calcium binding protein which mediates the Ca2+ regulation of a wide range of physiological processes throughout eukaryotic organisms[1].

Background

At low free Ca2+ concentrations, such as exist in resting muscle sarcoplasm, calmodulin exists in the Ca2+-free form in which state it does not generally interact with a target protein. Following an appropriate stimulus, the free Ca2+ concentration rises whereupon Ca2+ binds to calmodulin which undergoes a conformational change enabling it to interact with a target protein(s)[1].

Biological Activity

206875 units per mg protein. One unit is defined as the amount of calmodulin which will give rise to 50% of the maximal enzyme activation of a standard level of activator-deficient calcineurin.

Species

Human

Source

E. coli

Tag

Tag Free

Accession

P0DP23 (M1-K149)

Gene ID

801  [NCBI]/ 805  [NCBI]/ 808  [NCBI]

Synonyms
rHuCalmodulin; Calmodulin; CaM; CALM1
AA Sequence

MADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTAK

Molecular Weight

Approximately 16.0-17.0 kDa

Purity
  • Greater than 95% as determined by reducing SDS-PAGE.
Appearance

Lyophilized powder

Formulation

Lyophilized after extensive dialysis against 50 mM NH4HCO3, pH 8.0 or PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation
References

Calmodulin Protein, Human Related Classifications

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.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Calmodulin Protein, Human
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HY-P7710
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