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Fluorescein-5-maleimide

Cat. No. M13785
Fluorescein-5-maleimide Structure
Synonym:

N-(5-Fluoresceinyl)maleimide

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Biological Activity

Fluorescein-5-maleimide is a fluorescent thiol-reactive dye used to conjugate fluorescein to proteins (excitation: 494 nm, emission: 519 nm).

Chemical Information
Molecular Weight 427.36
CAS Number 75350-46-8
Storage -20°C, protect from light
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Man-Wah Tsang, et al. Methods Mol Biol. Rational Design and Construction of Active-Site Labeled Enzymes

[2] Carlos A Diaz, et al. Nanoscale. Fluorescent labeling and tracking of nanoclay

[3] M Palmer, et al. Anal Biochem. Cysteine-specific radioiodination of proteins with fluorescein maleimide

[4] D T McLachlin, et al. Protein Expr Purif. A method of screening for mutant proteins containing cysteine residues using fluorescein-5-maleimide

[5] G Sachs, et al. J Bioenerg Biomembr. Structural aspects of the gastric H,K-ATPase

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Keywords: Fluorescein-5-maleimide, N-(5-Fluoresceinyl)maleimide supplier, Fluorescent Dye, inhibitors, activators


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