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SRP0722

Sigma-Aldrich

KRAS (Mature Form), Active

PRECISIO® Kinase, recombinant

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UNSPSC Code:
12352202
NACRES:
NA.77

recombinant

expressed in E. coli

assay

70-95% (SDS-PAGE)

form

frozen liquid

specific activity

2.0-3.5 nmol/min·mg (GTPase-Glo)

mol wt

~23 kDa

concentration

0.1 μg/μL

accession no.

NM_033360

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... KRAS(3845)

Application

Useful for enzyme assay and Western blot.

Biochem/physiol Actions

Recombinant human KRAS (2-186) was expressed in E.coli cells using an N-terminal His tag. The RAS gene superfamily encodes a group of closely related 21,000 dalton (p21) proteins with special affinity for guanine nucleotides (GTP). RAS and several other cellular proteins with similar biochemical properties are collectively known as G-proteins and they play key roles in a wide variety of cellular activities, including cell growth, differentiation, secretion, and protein trafficking (1). There are three forms of RAS gene in cells termed H-RAS, N-RAS, and K-RAS. RAS proteins play a direct causal role in human cancer and in other diseases. Mutant H-RAS, N-RAS, and K-RAS occur in varying frequencies in different tumor types (2). Other members of the RAS superfamily may also contribute to cancer.

Reconstitution

Formulated in 50mM sodium phosphate, pH 7.0, 300mM NaCl, 150mM imidazole, 0.1mM PMSF, 0.25mM DTT, with 25% glycerol.

Storage and Stability

Store in aliquots at -70°C. Avoid freeze/thaw cycles.

Legal Information

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

pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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