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5(6)-TAMRA Maleimide [Tetramethylrhodamine-5-(and-6)-maleimide] *Mixed isomers*

Tetramethylrhodamine-5-(and-6)-maleimide is an excellent reagent for preparing orange fluorescent bioconjugates through thiol modifications of peptides, nucleotides, nucleic acids and proteins. Maleimides are among the most frequently used reagents for thiol modification. In most proteins, the sites of reactions are at cysteine residues that either are intrinsically present or result from reduction of cystines. Unlike iodoacetamides, maleimides do not react with histidines and methionines under physiological conditions.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of 5(6)-TAMRA Maleimide [Tetramethylrhodamine-5-(and-6)-maleimide] *Mixed isomers* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM207.68 µL1.038 mL2.077 mL10.384 mL20.768 mL
5 mM41.536 µL207.68 µL415.36 µL2.077 mL4.154 mL
10 mM20.768 µL103.84 µL207.68 µL1.038 mL2.077 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

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Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Correction Factor (260 nm)Correction Factor (280 nm)
5(6)-TAMRA, SE [5-(and-6)-Carboxytetramethylrhodamine, succinimidyl ester] *CAS 246256-50-8*552578900000.320.178
5(6)-TAMRA ethylenediamine552578900000.320.178
5(6)-TAMRA cadaverine552578900000.320.178
5-TAMRA C6 maleimide552578900000.320.178
6-TAMRA C6 maleimide552578900000.320.178

References

View all 21 references: Citation Explorer
Severing of F-actin by yeast cofilin is pH-independent
Authors: Pavlov D, Muhlrad A, Cooper J, Wear M, Reisler E.
Journal: Cell Motil Cytoskeleton (2006): 533
Fluorometric measurements of intermolecular distances between the alpha and beta subunits of the Na+/K+-ATPase
Authors: Dempski RE, Hartung K, Friedrich T, Bamberg E.
Journal: J Biol Chem. (2006)
4-aminopyridine prevents the conformational changes associated with P/C-type inactivation in Shaker channels
Authors: Claydon TW, Vaid M, Rezazadeh S, Kehl SJ, Fedida D.
Journal: J Pharmacol Exp Ther. (2006)
Both rotor and stator subunits are necessary for efficient binding of F1 to F0 in functionally assembled Escherichia coli ATP synthase
Authors: Krebstakies T, Zimmermann B, Graber P, Altendorf K, Borsch M, Greie JC.
Journal: J Biol Chem (2005): 33338
The beta subunit of the Na+/K+-ATPase follows the conformational state of the holoenzyme
Authors: Dempski RE, Friedrich T, Bamberg E.
Journal: J Gen Physiol (2005): 505
Page updated on November 23, 2024

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Physical properties

Molecular weight

481.51

Solvent

DMSO

Spectral properties

Correction Factor (260 nm)

0.32

Correction Factor (280 nm)

0.178

Extinction coefficient (cm -1 M -1)

90000

Excitation (nm)

552

Emission (nm)

578

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12171501