197217

Bcl-xL BH4₄₋₂₃

≥95% (HPLC), voltage-dependent anion channel blocker, lyophilized

• Synonyme(s) : Bcl-x_L BH4₄₋₂₃, Human, Cell-Permeable, HIV-TAT_48-57-β-Ala-Bcl-x_L BH4_4-23, Ac-GRKKRRQRRR-βA-SNRELVVDFLSYKLSQKGYS-OH
• Formule empirique (notation de Hill) : C₁₆₅H₂₇₉N₅₉O₄₆
• Poids moléculaire : 3825.35
• UNSPSC Code: 12352202
• NACRES: NA.77
• Assay: ≥95% (HPLC)
• Form: lyophilized
• Storage condition: OK to freeze, desiccated (hygroscopic)

Propriétés

• Nom du produit: Bcl-x_L BH4₄₋₂₃, Human, Cell-Permeable, A cell-permeable peptide that prevents apoptotic cell death by directly binding to the voltage-dependent anion channel (VDAC) and blocking its activity.
• Quality Segment: 100
• assay: ≥95% (HPLC)
• form: lyophilized
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze, desiccated (hygroscopic)
• solubility: 20% acetic acid: 5 mg/mL, DMSO: 5 mg/mL
• shipped in: ambient
• storage temp.: −20°C

Description

General description

A cell-permeable peptide that prevents apoptotic cell death by directly binding to the voltage-dependent anion channel (VDAC) and blocking its activity. Leads to the inhibition of cytochrome c release and loss of mitochondrial membrane potential (ΔΨ_m). Contains the conserved N-terminal homology domain (BH4) of Bcl-x_L (amino acids 4 - 23) that has been shown to be essential for inhibiting VDAC activity in liposomes and in isolated mitochondria. The BH4 domain is linked to a carrier peptide, a 10-amino acid HIV-TAT_48-57 sequence with a β-alanine residue as a spacer for maximum flexibility. Following its uptake, it is mainly localized to the mitochondria.

A highly cell-permeable peptide that prevents apoptotic cell death by directly binding to the voltage-dependent anion channel (VDAC) and blocking its activity. Ultimately results in the inhibition of cytochrome c release and loss of mitochondrial membrane potential (ΔΨm). Contains the conserved N-terminal homology domain (BH4) of Bcl-x_L (amino acids 4-23) that has been shown to be essential for inhibiting VDAC activity in liposomes and isolated mitochondria. The BH4 domain is linked to the carrier peptide, the 10-amino acid HIV-TAT_48-57 sequence with a β-alanine residue as a spacer for maximum flexibility. Following its uptake, it is mainly localized in the mitochondria.

Biochem/physiol Actions

Cell permeable: yes

Primary Target
Voltage-dependent anion channel (VDAC)

Product does not compete with ATP.

Reversible: yes

Packaging

Packaged under inert gas

Physical form

Supplied as a trifluoroacetate salt.

Preparation Note

Following reconstitution aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Ac-Gly-Arg-Lys-Lys-Arg-Arg-Gln-Arg-Arg-Arg-βAla-Ser-Asn-Arg-Glu-Leu-Val-Val-Asp-Phe-Leu-Ser-Tyr-Lys-Ser-Gln-Lys-Gly-Tyr-Ser-OH

Chen m., et al. 2002. J. Biol. Chem. 277, 29181.
Futaki, S., et al. 2001. J. Biol. Chem.276, 5836.
Shimizu, S., et al. 2000. Proc. Natl. Acad. Sci. USA97, 3100.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

Informations sur la sécurité

• Classe de stockage: 11 - Combustible Solids
• Que se passe-t-il ?: WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable