ArticleBiochimica et biophysica acta. Proteins and proteomics
Lipid-modulation of membrane insertion and refolding of the apoptotic inhibitor Bcl-xL.
Article in Biochimica et biophysica acta. Proteins and proteomics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed.
- Targeting the PBX1-BCL2L1 axis as a therapeutic strategy in colorectal cancer.Cell death discovery · 2026Article
- Comparison of BH3-dependent and BH3-independent membrane interactions of pro-apoptotic factor BAX.Biophysical journal · 2025Article
- Fluorescent Probes and Quenchers in Studies of Protein Folding and Protein-Lipid Interactions.Chemical record (New York, N.Y.) · 2024Review
- Bcl-xL Is Spontaneously Inserted into Preassembled Nanodiscs and Stimulates Bax Insertion in a Cell-Free Protein Synthesis System.Biomolecules · 2023Article
- Membrane interactions of apoptotic inhibitor Bcl-xL: What can be learned using fluorescence spectroscopy.BBA advances · 2023Article
- A Limitation of Using Dithionite Quenching to Determine the Topology of Membrane-inserted Proteins.The Journal of membrane biology · 2022Article
- Spectroscopic evidence of tetanus toxin translocation domain bilayer-induced refolding and insertion.Biophysical journal · 2021Article
- Lipids modulate the BH3-independent membrane targeting and activation of BAX and Bcl-xL.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Effects of Cardiolipin on the Conformational Dynamics of Membrane-Anchored Bcl-xL.International journal of molecular sciences · 2021Article
- Expanding MPEx Hydropathy Analysis to Account for Electrostatic Contributions to Protein Interactions with Anionic Membranes.The Journal of membrane biology · 2021Article
- Conformational switching, refolding and membrane insertion of the diphtheria toxin translocation domain.Methods in enzymology · 2021Article
- How bilayer properties influence membrane protein folding.Protein science : a publication of the Protein Society · 2020Review
- Article
- BCL-xL, a Mitochondrial Protein Involved in Successful Aging: FromInternational journal of molecular sciences · 2020Review
- Divalent Cations and Lipid Composition Modulate Membrane Insertion and Cancer-Targeting Action of pHLIP.Journal of molecular biology · 2019Article
- The Incomplete Puzzle of the BCL2 Proteins.Cells · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
Bcl-xL is a member of the Bcl-2 family of apoptotic regulators, responsible for inhibiting the permeabilization of the mitochondrial outer membrane, and a promising anti-cancer target. Bcl-xL exists in the following conformations, each believed to play a role in the inhibition of apoptosis: (a) a soluble folded conformation, (b) a membrane-anchored (by its C-terminal α8 helix) form, which retains the same fold as in solution and (c) refolded membrane-inserted conformations, for which no structural data are available. Previous studies established that in the cell Bcl-xL exists in a dynamic equilibrium between soluble and membranous states, however, no direct evidence exists in support of either anchored or inserted conformation of the membranous state in vivo. In this in vitro study, we employed a combination of fluorescence and EPR spectroscopy to characterize structural features of the bilayer-inserted conformation of Bcl-xL and the lipid modulation of its membrane insertion transition. Our results indicate that the core hydrophobic helix α6 inserts into the bilayer without adopting a transmembrane orientation. This insertion disrupts the packing of Bcl-xL and releases the regulatory N-terminal BH4 domain (α1) from the rest of the protein structure. Our data demonstrate that both insertion and refolding of Bcl-xL are modulated by lipid composition, which brings the apparent pK
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.