작성일 : 19-10-08
[Invent Biotechnologies, Inc.] Rubisco Depletion Kit


Minute™ Rubisco Depletion Kit


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The proteasome is a protein degradation system that requires metabolic energy and polymerization of

ubiquitin that is different from lysosome-based protein degradation. The 26S proteasome is made up of two

subcomplexes (a 20S proteasome and one or two19S regulatory particles). The proteasomes have been

found mainly localized in cytosol but also detected in nucleus. Traditionally, ultracentrifugation and

affinityisolation are most common methods for isolation of proteasomes. These methods,though relatively

effective, are usually time consuming with low yield. Many affinity-based methods require harsh elution

conditions that may affect the activity of isolated proteasomes and limit certain downstream applications. In

most cases, the methods can’t distinguish proteasomes derived from cytosol or nucleus. To overcome these

shortcomings, we have developed spin-column-based kits for enrichment of proteasome from nuclei

(Cytosolic Proteasome Enrichment Kit is also available under Cat # PT-040). Theprotocol is simple and rapid

with high yield. The gentle protocol maintains the association of proteasomes with ubiquitin and other

proteins and is useful for the studies of proteasome structure and function. The highly enriched proteasomes

can also be used as a starting material for affinity purifications.


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Instruction sheet (PDF)



Ordering information


Catalog No

Product Name

Kit components



Minute™ Rubisco Depletion Kit

Buffer A

15 ml

Buffer B

5 ml

Buffer C

1 ml

Pestle for 1.5 ml microfuge tube

20 units

Filter Cartridges with Collection Tubes

20 units

Protein Extraction Powder

4 g

* For 20 preps



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