Aequorin from jellyfish (Aequorea sp.)

Type III, solid

CAS Number:
MDL number:
Pricing and availability is not currently available.

biological source

Aequorea sp.


Type III




 mg solid sufficient for ~200 calcium assays


Protein, ~0.5% Bradford


detection: suitable

storage temp.


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General description

Package sizes are based on total solids content
Apoaequorin has a mol. wt. approx. 22 kDa, and contains a molecule of coelenterazine hydroperoxide as the chromophoric prosthetic group. Upon binding Ca2+, aequorin decomposes to apoaequorin, coelenteramide, and CO2, and emits light.

Biochem/physiol Actions

A bioluminescent protein; can be used to measure physiological levels of calcium in serum and subcellular organelles down to 10 μM.

Physical form

Contains buffer salts consisting mainly of sodium EDTA, pH 7.5

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


ALSUntangled no. 18: apoaequorin (Prevagen).
Amyotrophic lateral sclerosis & frontotemporal degeneration, 14(1), 78-79 (2012-10-04)
Denis Ottolini et al.
Methods in molecular biology (Clifton, N.J.), 937, 273-291 (2012-09-26)
In the last two decades the study of Ca(2+) homeostasis in living cells has been enhanced by the explosive development of genetically encoded Ca(2+)-indicators. The cloning of the Ca(2+)-sensitive photoprotein aequorin and of the green fluorescent protein (GFP) from the...
Fen-Fen Lin et al.
The Journal of pharmacology and experimental therapeutics, 345(2), 225-238 (2013-03-12)
Calcium entry into T cells following antigen stimulation is crucial for nuclear factor of activated T cells (NFAT)-mediated T cell activation. The movement of calcium is mediated by calcium release-activated calcium (CRAC) channels. There are two key components of this...
Nazia Haq et al.
Assay and drug development technologies, 11(2), 93-100 (2012-10-11)
Gap junctions (GJs) are intercellular channels which are composed of the connexin family of proteins that allow electrical and chemical communications and synchronization in tissue ensembles. Evidence suggests that pharmaceutical modulators of these channels may have therapeutic potential or carry...
Satoshi Inouye et al.
Protein expression and purification, 83(2), 205-210 (2012-04-28)
Highly purified histidine-tagged aequorin with a reactive cysteine residue (His-Cys4-aequorin) was obtained from the periplasmic space of Escherichia coli cells by nickel-chelate affinity chromatography and hydrophobic chromatography. The procedure yielded 40.3mg of His-Cys4-aequorin from 2L of cultured cells with over...

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