ArticleNature communications2025
Allosteric regulation of BH3-in-groove interactions by tail anchors of BCL-xL complexes limits BH3 mimetic antagonism.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- In Silico Isomerization Produces Apt Negative Data for VHTS Validation.Journal of chemical information and modeling · 2026Article
- ZIF-8/polydopamine nanocomposite functionalized with hyaluronic acid and folic acid for pH-responsive resveratrol delivery and apoptosis induction in colorectal cancer.Scientific reports · 2026Article
- Unfolding Resilience: Molecular Integration of the Integrated Stress Response and Mitochondrial UPR in Skeletal Muscle Homeostasis.Muscles (Basel, Switzerland) · 2026Review
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Authors and funding
9 authors.
Funding
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Abstract
BCL-xL promotes cell survival by binding BH3-only initiators through its hydrophobic groove. Combining resonance energy transfer assays and molecular dynamics simulations, we unravel that membrane anchoring of BCL-xL via its tail anchor selectively advantages binding to membrane-anchored PUMA initiator over BH3 mimetic ligands of the groove. This is due to the combined allosteric effect on BH3-in-groove binding of BCL-xL and PUMA tail anchors. Moreover, doubly anchored PUMA / BCL-xL complexes recruit endogenous BAX, which favors their antagonism by BH3 mimetics. BAX's tail anchor alone is sufficient to enhance BH3 mimetics-induced death in cells expressing PUMA / BCL-xL. Our work supports a model in which the survival function of BCL-xL is regulated by a complex interplay between its tail anchor and those of its interacting partners. This enables both resistance to pharmacological inhibitors and modulation by BAX, which functions as a crucial feedback disruptor of the BCL-xL network.
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