Product nameHuman Bcl-XL peptide
See all Bcl-XL proteins and peptides
Amino Acid Sequence
Our Abpromise guarantee covers the use of ab39728 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Preparation and Storage
Stability and Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
Preservative: 0.02% Sodium azide
Constituents: PBS, 0.001% BSA
- Apoptosis regulator Bcl X
- Apoptosis regulator Bcl-X
- Apoptosis regulator BclX
FunctionPotent inhibitor of cell death. Inhibits activation of caspases (By similarity). Appears to regulate cell death by blocking the voltage-dependent anion channnel (VDAC) by binding to it and preventing the release of the caspase activator, CYC1, from the mitochondrial membrane.
Isoform Bcl-X(S) promotes apoptosis.
Tissue specificityBcl-X(S) is expressed at high levels in cells that undergo a high rate of turnover, such as developing lymphocytes. In contrast, Bcl-X(L) is found in tissues containing long-lived postmitotic cells, such as adult brain.
Sequence similaritiesBelongs to the Bcl-2 family.
DomainThe BH4 motif is required for anti-apoptotic activity. The BH1 and BH2 motifs are required for both heterodimerization with other Bcl-2 family members and for repression of cell death.
modificationsProteolytically cleaved by caspases during apoptosis. The cleaved protein, lacking the BH4 motif, has pro-apoptotic activity.
Cellular localizationMitochondrion membrane. Nucleus membrane. Mitochondrial membranes and perinuclear envelope.
- Information by UniProt
ab39728 has not yet been referenced specifically in any publications.