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Merck
CN

F4051

Proteasome Fraction II from rabbit

5 mg/mL, Reticulocyte cell extract, solution

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.77
MDL number:
Form:
solution
Quality level:
Technical Service
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Quality Level

form

solution

concentration

5 mg/mL

storage temp.

−70°C

General description

Manufactured for Sigma by Boston Biochem., Inc.

Application

Proteasome Fraction II is ideal for demonstrating ubiquitin- and ATP-dependent degradation/conjugation of radiolabeled or immunodetectable substrates. Isopeptidase inhibitor and a proteasome inhibitor are highly recommended for the accumulation of ubiquitin protein conjugates. Typical assay concentration for FII is 0.5 - 4 mg/ml.

Biochem/physiol Actions

Essentially ubiquitin and ATP free. Contains E1, most E2s, UCHs, and the proteasome 20S and 26S isoforms.
Protein fraction of a cell extract that binds to anion-exchange resin.

Physical form

Solution in 25 mM HEPES, pH 7.6.


Storage Class

10 - Combustible liquids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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A Hershko et al.
The Journal of biological chemistry, 261(26), 11992-11999 (1986-09-15)
In order to gain insight into the mechanisms that determine the selectivity of the ubiquitin proteolytic pathway, the protein substrate binding site of the ubiquitin-protein ligase system was identified and examined. Previous studies had shown that the ligase system consists
A Hershko et al.
The Journal of biological chemistry, 258(13), 8206-8214 (1983-07-10)
By affinity chromatography of a crude reticulocyte extract on ubiquitin-Sepharose, three enzymes required for the conjugation of ubiquitin with proteins have been isolated. One is the ubiquitin-activating enzyme (E1), which is covalently linked to the affinity column in the presence



Global Trade Item Number

SKUGTIN
F4051-5MG04061833261712