Cited by 421Cell death mechanisms and regulationMitochondrial Function and PathologyCancer-related Molecular Pathways

Many players in BCL-2 family affairs

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Moldoveanu, Tudor, Follis, Ariele Viacava, Kriwacki, Richard W., Green, Douglas R.·2014·Trends in Biochemical Sciences

Abstract

During apoptotic cell death, cellular stress signals converge at the mitochondria to induce mitochondrial outer-membrane permeabilization (MOMP) through B cell lymphoma-2 (BCL-2) family proteins and their effectors. BCL-2 proteins function through protein-protein interactions, the mechanisms and structural aspects of which are only now being uncovered. Recently, the elucidation of the dynamic features underlying their function has highlighted their structural plasticity and the consequent complex thermodynamic landscape governing their protein-protein interactions. These studies show that canonical interactions involve a conserved, hydrophobic groove, whereas non-canonical interactions function allosterically outside the groove. We review the latest structural advances in understanding the interactions and functions of mammalian BCL-2 family members, and discuss new opportunities to modulate these proteins in health and disease.

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Crossref · 10.1016/j.tibs.2013.12.006

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  • MOMP is controlled by pro-apoptotic and anti-apoptotic members of the BCL2 protein family.

    “which is controlled by pro-apoptotic and anti-apoptotic members of the BCL2, apoptosis regulator (BCL2) protein family, a group of proteins sharing one to four BCL2 homology (BH) domains (i.e., BH1, BH2, BH3, and BH4) [29, 42, 43].”
  • BAX and BAK are the only BCL2 family members characterized so far in mammalian cells for their ability to form pores across the outer mitochondrial membrane and possibly other intracellular membranes.

    “Together with BOK, BCL2 family apoptosis regulator (BOK) [47], BAX and BAK are the only BCL2 family members characterized so far in mammalian cells for their ability to form pores across the outer mitochondrial membrane (OMM) and possibly other intracellular membranes [29, 42, 43].”
  • MOMP is antagonized by anti-apoptotic members of the BCL2 family, including BCL2, BCL-XL, MCL1, BCL-W, and BFL-1.

    “MOMP is antagonized by anti-apoptotic members of the BCL2 family, including BCL2 itself, BCL2 like 1 (BCL2L1; best known as BCL-XL), MCL1, BCL2 family apoptosis regulator (MCL1), BCL2 like 2 (BCL2L2; best known as BCL-W), and BCL2 related protein A1 (BCL2A1; best known—in human—as BFL-1) [29, 42, 43].”
  • The Bcl-2 family consists of anti-apoptotic and pro-apoptotic proteins that act synergistically as apoptotic switches, ultimately determining the cell's fate.

    “This family consists of anti-apoptotic and pro-apoptotic proteins that act synergistically as apoptotic switches, ultimately determining the cell’s fate.358–360”

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Authors
Moldoveanu, T., Follis, A. V., Kriwacki, R. W., & Green, D. R.
Affiliations
St. Jude Children's Research Hospital (US)
Corresponding author
  • Kriwacki, Richard W.
  • Green, Douglas R.
Venue
Trends in Biochemical Sciences
Publisher
Elsevier BV
Published
2014-03
Volume
39
Issue
3
Pages
101-111
ISSN
0968-0004 (ISSN-L)
OpenAlex
W1992806448
Cited by
421
References
105
Citations by year
2026: 7 · 2025: 18 · 2024: 17 · 2023: 28 · 2022: 29 · 2021: 39 · 2020: 33 · 2019: 39 · 2018: 52 · 2017: 31 · 2016: 66 · 2015: 45 · 2014: 17
FWCI
5.03
Type
journal article
Language
en
Open access
Locations
  • Trends in Biochemical Sciences (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Lebanese Syrian Associated Charities
  • National Cancer Institute (P 30CA 21765, R01CA082491, P30CA021765)
  • National Institute of General Medical Sciences (R01GM096208, R01GM083159, GM 096208)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
Bcl-2 family proteins, apoptosis, mitochondrial outer membrane permeabilization, protein-protein interaction, allosteric interactions, hydrophobic groove, structural plasticity
MeSH terms
Animals, Humans, Permeability, Apoptosis, Proto-Oncogene Proteins c-bcl-2, Mitochondrial Membranes

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