Learn about our comprehensive antibody validation methods to ensure monospecificity.  Antibody Validation>>

Recombinant Bcl-X (Apoptosis Marker) Antibody [BCL2L1/4509R]

In Stock
Catalog Number Formulation Size Price
Purified Ab with BSA and Azide at 200ug/ml
Purified Ab with BSA and Azide at 200ug/ml
Purified Ab WITHOUT BSA and Azide at 1.0mg/ml
Flat Rate Domestic: $60 | Orders outside the US - Contact Us for Order Information | Ships next business day

Applications & Dilutions

Applications Tested Dillution Protocol Note
Immunohistochemistry (IHC)
30 min at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes


Recognizes a protein of 27kDa, identified as the Bcl-X protein. This MAb shows no cross-reaction with Bcl-2伪 or Bax protein. Bcl-X has two isoforms, Bcl-XL (long), a 241-amino acid protein which suppresses cell death. And Bcl-XS (short), a 178-amino acid protein lacking a 63-amino acid domain which functions as a dominant inhibitor of Bcl-2.

Product Properties & Targets

Species Reactivity
Isotype / Light Chain
IgG / Kappa
Cellular Localization
Centrosome, Cytoplasm, Cytoplasmic vesicle, Cytoskeleton, Cytosol, Microtubule organizing center, Mitochondrion inner membrane, Mitochondrion matrix, Mitochondrion outer membrane, Nucleus membrane, Secretory vesicle, Synaptic vesicle membrane
Gene Name
Positive Control
HL-60 or HeLa cells. Reed-Sternberg cells in Hodgkin s lymphoma., Jurkat, K562
Recombinant fragment (around aa1-100) of human BCL2L1 protein (exact sequence is proprietary)
Alternate Names
Bcl-2-like protein 1, Apoptosis regulator Bcl-X, Apoptosis regulator Bcl-X, B cell lymphoma 2 like, BCL XL/S, Bcl-2-like protein 1, Bcl2-L-1, BCL2L, Bcl2l1, BCLX, BclXL, BclXs, Protein phosphatase 1 regulatory subunit 52 (PPP1R52)

Database Links

Entrez Gene ID

Additional Information

Chromosome Location
Mol. Weight of Antigen


  • Potent inhibitor of cell death. Inhibits activation of caspases. Appears to regulate cell death by blocking the voltage-dependent anion channel (VDAC) by binding to it and preventing the release of the caspase activator, CYC1, from the mitochondrial membrane. Also acts as a regulator of G2 checkpoint and progression to cytokinesis during mitosis.
  • Isoform Bcl-X(L) also regulates presynaptic plasticity, including neurotransmitter release and recovery, number of axonal mitochondria as well as size and number of synaptic vesicle clusters. During synaptic stimulation, increases ATP availability from mitochondria through regulation of mitochondrial membrane ATP synthase F(1)F(0) activity and regulates endocytic vesicle retrieval in hippocampal neurons through association with DMN1L and stimulation of its GTPase activity in synaptic vesicles. May attenuate inflammation impairing NLRP1-inflammasome activation, hence CASP1 activation and IL1B release (PubMed:17418785).
  • Isoform Bcl-X(S) promotes apoptosis.

Key References

  • Hsu YT, et. al. Journal of Biological Chemistry, 1997, 272(21):13829-34.
  • Wolter KG, et. al. Journal of Cell Biology, 1997, 139(5):1281-92.

PubMed Links

Storage & Stability

Antibody with azide - store at 2 to 8 °C. Antibody without azide - store at -20 to -80 °C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.


This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

200ug/ml of Ab purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.


There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.


There are no reviews yet.

Be the first to review “Recombinant Bcl-X (Apoptosis Marker) Antibody”

Your email address will not be published. Required fields are marked *


We hold Exclusive rights to 10,000 recombinant and hybridoma antibody products, available for Licensing or Collaboration.