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Merck

208748

Calpain-1 Substrate, Fluorogenic

An internally quenched fluorogenic substrate peptide derived from the calpain-1 cleavage site of α-spectrin.

Synonym(s):

Calpain-1 Substrate, Fluorogenic, μ-Calpain Substrate, Fluorogenic, H-K(FAM)-EVY~GMMK(DABCYL)-OH

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About This Item

Empirical Formula (Hill Notation):
C79H95N13O19S2
Molecular Weight:
1594.81
NACRES:
NA.77
UNSPSC Code:
12352200
Assay:
≥95% (HPLC)
Form:
lyophilized solid
Quality level:
100
Storage condition:
OK to freeze, desiccated (hygroscopic), protect from light

Key Documents

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assay

≥95% (HPLC)

form

lyophilized solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, desiccated (hygroscopic), protect from light

color

red

solubility

DMSO: 1 mg/mL

fluorescence

λex ~490 nm, λem ~518 nm

shipped in

wet ice

storage temp.

−20°C

Quality Level

100

Related Categories

General description

An internally quenched fluorogenic substrate peptide derived from the calpain-1 cleavage site of α-spectrin. It is not recognized by trypsin or α-chymotrypsin and serves as a sensitive and specific substrate for calpain-1 (Km = 4.6 µM; kcat = 11 s-1). Cleavage occurs at the Tyr-Gly bond and results in enhanced fluorescence. Excitation max: ~490 nm; emission max: ~518 nm.

Biochem/physiol Actions

Cell permeable: no
Primary Target
A sensitive and specific substrate for calpain-1
Product does not compete with ATP.
Reversible: no

Packaging

Packaged under inert gas

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

H-Lys(FAM)-Glu-Val-Tyr~Gly-Met-Met-Lys(DABCYL)-OH
Mittoo, S., et al. 2003. Anal. Biochem.319, 234.

Legal Information

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

Disclaimer

Toxicity: Standard Handling (A)

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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David S Dang et al.
Meat science, 162, 108039-108039 (2020-01-15)
The purpose of this study was to examine the role of mitochondria in postmortem calcium homeostasis and its effect on proteolysis and tenderness. We hypothesized that mitochondria buffer cytosolic calcium levels and delay the activation of calpain-1 and subsequently the

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