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SRP0187

Sigma-Aldrich

Bcl-xL Active human

recombinant, expressed in E. coli, ≥90% (SDS-PAGE)

Synonyme(s) :

Apoptosis regulator Bcl-X, BCL-XL/S, BCL2L1, Bcl-2-like protein 1

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About This Item

Code UNSPSC :
12352200
Nomenclature NACRES :
NA.32

Source biologique

human

Produit recombinant

expressed in E. coli

Pureté

≥90% (SDS-PAGE)

Forme

aqueous solution

Poids mol.

28 kDa

Conditionnement

pkg of 100 μg

Conditions de stockage

avoid repeated freeze/thaw cycles

Concentration

>0.02 mg/mL

Numéro d'accès NCBI

Conditions d'expédition

dry ice

Température de stockage

−70°C

Informations sur le gène

human ... BCL2L1(598)

Description générale

BCL2L1 (B-cell lymphoma 2 like 1) gene codes for the anti-apoptotic protein called Bcl-xL (B-cell lymphoma-extra large) and its isoform Bcl-xS. Bcl-xS functions as an antagonist of Bcl-xL. This gene is localized to human chromosome 20q11.21.

Application

Useful for the study of apoptosis, screening inhibitors, and selectivity profiling.

Actions biochimiques/physiologiques

BCL2L1 (B-cell lymphoma 2 like 1) or Bcl-xS functions as a dominant negative regulator of the anti-apoptotic isoform Bcl-xL. Bcl-xL is involved in modulating anti-apoptotic capacity of chemotherapy-resistant tumors. This protein is highly expressed in michigan cancer foundation 7 (MCF7) human breast carcinoma cells, and studies show that overexpression of Bcl-xS in these MCF-7 cells results in heightened sensitivity to chemotherapy-induced apoptosis by agents such as VP-16 or taxol.

Forme physique

Formulated in 25 mM Tris-HCl, pH 8.0, 100 mM NaCl, 0.05% Tween-20, 30% glycerol and 3 mM DTT.

Notes préparatoires

Thaw on ice. Upon first thaw, briefly spin tube containing enzyme to recover full content of the tube. Aliquot enzyme into single use aliquots. Store remaining undiluted enzyme in aliquots at -70°C. Note: Enzyme is very sensitive to freeze/thaw cycles.

Pictogrammes

Health hazardExclamation mark

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

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

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 2


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Bcl-xL mediates therapeutic resistance of a mesenchymal breast cancer cell subpopulation.
Keitel U, et al.
Oncotarget, 5(23), 11778-11791 (2014)
Gain of 20q11.21 in human embryonic stem cells improves cell survival by increased expression of Bcl-xL.
Nguyen HT, et al.
Molecular Human Reproduction, 20(2), 168-177 (2014)
BCL-XL mediates the strong selective advantage of a 20q11.21 amplification commonly found in human embryonic stem cell cultures.
Avery S, et al.
Stem Cell Reports, 1(5), 379-386 (2013)
Overexpression of Bcl-XS sensitizes MCF-7 cells to chemotherapy-induced apoptosis.
Sumantran VN, et al.
Cancer Research, 55(12), 2507-2510 (1995)
Francis McCoy et al.
Methods in molecular biology (Clifton, N.J.), 1133, 119-140 (2014-02-26)
The study of apoptosis and caspases has advanced greatly over recent decades. Studies conducted in the Xenopus laevis egg extract and oocyte model system have significantly contributed to these advances. Twenty years ago, Newmeyer and colleagues first showed that the

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