Human Bcl-w Antibody

Catalog #: MAB824 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB824
MAB824-SP

Detection of Human Bcl‑w by Western Blot.

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Human Bcl-w Antibody Summary

Species Reactivity

Human

Specificity

Detects human Bcl-w in Western blots.

Source

Monoclonal Mouse IgG₁ Clone # 90316

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human Bcl-w
Met1-Thr172
Accession # Q92843

Formulation

Supplied as a 0.2 μm filtered solution in PBS with Sodium Azide. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Human Bcl‑w by Western Blot. Western blot shows lysates of WS-1 human fetal skin fibroblast cell line and CTLL-2 mouse cytotoxic T cell line. The PVDF membrane was probed with 1 µg/mL Human Bcl-w Monoclonal Antibody (Catalog # MAB824) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). For additional reference, Recombinant Human Bcl-w Minus C-Terminus (Catalog # 824-BW) (1 ng) was included. A specific band for Bcl-w was detected at approximately 18 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 9with 25 mM Tris and 0.15 M NaCl.

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Preparation and Storage

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C, as supplied.
1 month, 2 to 8 °C under sterile conditions after opening.
6 months, -20 to -70 °C under sterile conditions after opening.

Background: Bcl-w

Bcl-w is a member of the Bcl-2 family of proteins that regulates outer mitochondrial membrane permeability (1, 2). Bcl-w is an anti-apoptotic member that prevents release of cytochrome c from the mitochondria intermembrane space into the cytosol. Bcl-w is required for normal sperm maturation (3, 4, 5). Natural Bcl-w contains a carboxyl-terminal mitochondria targeting sequence. Recombinant Bcl-w missing the mitochondrial targeting sequence maintains its ability to neutralize pro-apoptotic Bcl-2 family members. Neutralization by Bcl-w appears to be through binding the BH3 region of pro-apoptotic Bcl-2 family members. This activity does not require the mitochondrial targeting sequence.

References