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A4140

Sigma-Aldrich

Aequorin from jellyfish (Aequorea sp.)

Type III, solid

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352202

biological source

Aequorea sp.

type

Type III

form

solid

usage

 mg solid sufficient for ~200 calcium assays

composition

Protein, ~0.5% Bradford

application(s)

detection

storage temp.

−20°C

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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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
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
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
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
ALSUntangled no. 18: apoaequorin (Prevagen).
Amyotrophic lateral sclerosis & frontotemporal degeneration, 14(1), 78-79 (2012-10-04)

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