WFRF:(Ådén Jörgen 1980 )
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A novel recombinant expression and purification approach for the full-length anti-apoptotic membrane protein Bcl-2
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- Ådén, Jörgen, 1980- (author)
- Umeå universitet,Kemiska institutionen
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- Ul Mushtaq, Ameeq (author)
- Umeå universitet,Kemiska institutionen
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- Dingeldein, Artur P. G. (author)
- Umeå universitet,Kemiska institutionen
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- (creator_code:org_t)
- Elsevier, 2020
- 2020
- English.
- In: Protein Expression and Purification. - : Elsevier. - 1046-5928 .- 1096-0279. ; 172
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Programmed cell death (apoptosis) is an essential mechanism in life that tightly regulates embryogenesis and removal of harmful cells. Besides an extrinsic pathway, an intrinsic (mitochondrial) apoptotic pathway exists where mitochondria are actively involved in cellular clearance in response to internal stress signals. Pro-apoptotic (death) and anti-apoptotic (survival) members of the B cell CLL/lymphoma-2 (Bcl-2) protein family meet at the mitochondrion's surface where they accurately regulate apoptosis. Overexpression of the anti-apoptotic Bcl-2 protein is a hallmark for many types of cancers and in particular for many treatment resistant tumors. Bcl-2 is a membrane protein residing in the mitochondrial outer membrane. Due to its typical membrane protein features including very limited solubility, it is difficult to express and to purify. Therefore, most biophysical and structural studies have used truncated, soluble versions. However, to understand its membrane-coupled function and structure, access to sufficient amount of full-length human Bcl-2 protein is a necessity. Here, we present a novel, E. coli based approach for expression and purification of preparative amounts of the full-length human isoform 2 of Bcl-2 (Bcl-2(2)), solubilized in detergent micelles, which allows for easy exchange of the detergent.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Medicinsk bioteknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Medical Biotechnology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Cellbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Cell Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biofysik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biophysics (hsv//eng)
Keyword
- Apoptosis
- Pro-survival Bcl-2 protein
- High-yield expression
- Full-length membrane protein
- Detergent exchange
Publication and Content Type
- ref (subject category)
- art (subject category)
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