Bcl-2 (Apoptosis Regulator Bcl-2, B Cell CLL / lymphoma-2)

Antibodies / Antibodies-Apoptosis

-20°C

Supplied as a liquid in 10mM PBS, 0.05% BSA, 0.05% sodium azide. Also available without BSA and azide, see 172031-AF.

Synthetic peptide corresponding to aa41-54 (GAAPAPGIFSSQPG-Cys) of human Bcl-2 protein (P10415). Cellular Localization: outer mitochondrial memebrane and endoplasmic reticulum, nuclear membranes

This antibody recognizes a protein of 25-26kD, identified as the bcl-2alpha oncoprotein. It shows no cross-reaction with Bcl-x or Bax protein. Expression of bcl-2alpha oncoprotein inhibits the programmed cell death (apoptosis). In most follicular lymphomas, neoplastic germinal centers express high levels of bcl-2alpha protein, whereas the normal or hyperplastic germinal centers are negative. Consequently, this antibody is valuable when distinguishing between reactive and neoplastic follicular proliferation in lymph node biopsies. It may also be used in distinguishing between those follicular lymphomas that express bcl-2 protein and the small number in which the neoplastic cells are bcl-2 negative.

Applications:
Suitable for use in Immunofluorescence, Flow Cytometry, ELISA, Western Blot, Immunoprecipitation, Immunohistochemistry. Other applications not tested.

Recommended Dilution:
Flow Cytometry: 0.5-1ug/million cells
Immunofluorescence: 1-2ug/ml
Western Blot: 0.5-1ug/ml
Immunoprecipitation: 1-2ug/500ug protein lysate
Immunohistochemistry (Frozen & Formalin-fixed): 0.5-1ug/ml for 30 minutes at RT
(Staining of formalin-fixed tissues is enhanced by boiling tissue sections in 1mM EDTA Buffer, pH 7.5-8.5, for 10-20 min followed by cooling at RT for 20 minutes)
Optimal dilution for a specific application should be determined.

Positive Control:
Jurkat, K562, HL-60, or HeLa Cells. Tonsil or follicular lymphomas.

Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.