| 1999 |
Boo (BCL2L10) interacts with Apaf-1 and forms a multimeric protein complex with Apaf-1 and caspase-9; pro-apoptotic Bak and Bik disrupt the Boo-Apaf-1 association. Boo also binds three distinct regions of Apaf-1. |
Co-immunoprecipitation, pulldown assays, transfection-based apoptosis assays |
The EMBO journal |
High |
9878060
|
| 1999 |
Boo (BCL2L10) localizes to intracellular membranes via its hydrophobic C-terminus and inhibits apoptosis; it homodimerizes and heterodimerizes with other Bcl-2 family members. |
Subcellular fractionation, co-immunoprecipitation, transfection-based apoptosis assays |
The EMBO journal |
High |
9878060
|
| 2001 |
Bcl-B (BCL2L10) contains BH1, BH2, BH3, BH4, and a C-terminal transmembrane domain; it binds Bcl-2, Bcl-XL, and Bax but NOT Bak. It suppresses Bax-induced but not Bak-induced apoptosis. Deletion of the TM domain impairs association with intracellular organelles and diminishes anti-apoptotic function. |
Co-immunoprecipitation, GST pulldown, transient transfection apoptosis assays, domain deletion mutagenesis |
The Journal of biological chemistry |
High |
11278245
|
| 2001 |
Bcl2-L-10 blocks apoptosis in the mitochondrial death pathway (preventing cytochrome C release, caspase-3 activation, and mitochondrial membrane potential collapse) but does not block TNFα-induced (death receptor) apoptosis. Both the BH4 domain and transmembrane domain are necessary for its anti-apoptotic function. |
Transfection assays, cytochrome C release measurement, caspase-3 activation assay, mitochondrial membrane potential assay, domain deletion mutagenesis |
Human molecular genetics |
High |
11689480
|
| 2003 |
Bcl-B selectively binds Bax over Bak via the BH3 domain of Bax; chimeric Bak containing Bax's BH3 domain bound Bcl-B whereas chimeric Bax containing Bak's BH3 domain did not. Alanine-scanning of Bax BH3 and structure-based mutations in Bcl-B's BH3-binding pocket (L86A and R96Q) abolished Bax binding and apoptosis suppression, confirming binding-dependent suppression mechanism. |
BH3-swap chimeric mutant co-immunoprecipitation, alanine-scanning mutagenesis, structure-based mutagenesis of BH3-binding pocket, transient transfection apoptosis assays |
The Biochemical journal |
High |
12921534
|
| 2007 |
Nuclear receptor Nur77/TR3 selectively binds Bcl-B among anti-apoptotic Bcl-2 family members and converts Bcl-B from anti-apoptotic to pro-apoptotic. Endogenous Bcl-B associates with endogenous Nur77 in RPMI 8226 myeloma cells, and RNAi knockdown of Bcl-B demonstrated dependence on Bcl-B for Nur77-induced apoptosis. |
Co-immunoprecipitation of endogenous proteins, RNAi knockdown, fluorescence polarization binding assay, peptide treatment assays |
Blood |
High |
17227826
|
| 2007 |
NM23-H2 interacts with Diva/BCL2L10 (requiring the transmembrane domain of Diva) and co-localizes in cytoplasm. NM23-H2 overexpression down-regulates Diva protein level; NM23-H2 knockdown restores Diva expression and increases Diva-mediated apoptotic activity. |
Yeast two-hybrid, co-immunoprecipitation, siRNA knockdown, subcellular co-localization |
Biochemical and biophysical research communications |
Medium |
17532299
|
| 2008 |
Bcl-B shows strong preference for binding and suppressing Bax over Bak, in contrast to Bcl-2, Bcl-XL, Bcl-W, and Bfl-1 which bind both. Bcl-B is not targeted by ABT-737 due to low affinity. |
Co-immunoprecipitation, GST pulldown, fluorescence polarization with synthetic BH3 peptides, transient transfection apoptosis assays |
The Journal of biological chemistry |
High |
18178565
|
| 2009 |
HIP1R interacts with BCL2L10 (requiring both ANTH and THATCH domains of HIP1R); HIP1R overexpression induces cell death dependent on BAK (not BAX), associated with mitochondrial membrane potential loss and caspase-9 activation, and augments BCL2L10-caspase-9 association. |
Yeast two-hybrid, co-immunoprecipitation, Far-Western analysis, domain deletion, caspase-9 activation assay, mitochondrial membrane potential assay |
Cellular physiology and biochemistry |
Medium |
19255499
|
| 2009 |
BCL2L10 protein is associated with the microtubule binding protein TCTP (translationally controlled tumor protein) and with mitochondria in oocytes, with stage-specific redistribution along the pericortical regulatory ooplasm. Neutralization of BCL2L10 accelerated oocyte death. |
Co-immunoprecipitation, immunofluorescence, neutralizing antibody treatment, subcellular fractionation |
Journal of molecular medicine |
Medium |
19551325
|
| 2009 |
Bcl2l10 RNAi in mouse germinal vesicle oocytes causes metaphase I arrest with spindle and chromosome abnormalities; Bcl2l10 affects maturation-promoting factor activity but not MAPK activity at the MI-MII transition. |
Microinjection of dsRNA, immunofluorescence for spindle/chromosomes, MPF and MAPK activity assays |
Biology of reproduction |
Medium |
19439730
|
| 2012 |
BCL2L10 (BCLb) protein stability is regulated by Ubiquilin1 (Ubqln1), which specifically interacts with BCLb (but not other anti-apoptotic BCL2 family members), stabilizes BCLb protein, promotes its monoubiquitination on multiple lysine residues, and relocalizes it to the cytosol. |
Immunoaffinity purification, mass spectrometry, cycloheximide chase, co-immunoprecipitation, ubiquitination assays |
Proceedings of the National Academy of Sciences of the United States of America |
High |
22233804
|
| 2012 |
Bcl-B is polyubiquitinated at steady state via K48-linked chains; K128 is the primary acceptor site (confirmed by mass spectrometry and linkage-specific antibodies), with K119 and K120 as additional sites. Ubiquitination targets Bcl-B for proteasomal degradation and controls its anti-apoptotic capacity. A lysineless Bcl-B mutant shows 5-fold higher protein expression than wild-type. |
Mutagenesis (lysine substitutions), mass spectrometry, linkage-specific ubiquitin antibodies, proteasome inhibition, cycloheximide chase |
Oncogene |
High |
23563182
|
| 2012 |
Bcl-B interacts with the BH3 domain of BECN1 (Beclin-1) and inhibits autophagy; Bcl-B overexpression reduces autophagy triggered by various stimuli while Bcl-B knockdown triggers autophagic cell death dependent on LC3, BECN1, and ATG5. |
Co-immunoprecipitation, autophagy flux assays, siRNA knockdown, overexpression studies |
Autophagy |
Medium |
22498477
|
| 2012 |
Bcl-B has high-affinity interactions with Bim and Bik BH3-only proteins only; it does not bind other BH3-only proteins with high affinity. Crystal structure of Bcl-B:Bim complex resolved to 1.9 Å reveals an insertion of an unstructured loop between helices α5 and α6 distinguishing Bcl-B from other family members. |
X-ray crystallography (1.9 Å resolution), fluorescence polarization binding assays, cell-based apoptosis assays |
Cell death & disease |
High |
23235460
|
| 2012 |
Bcl-B is not targeted by ABT-737 (low affinity), in contrast to Bcl-2, Bcl-xL, and Bcl-w. Noxa, but not Bim, Puma, or truncated Bid, can overcome Bcl-B-mediated resistance to ABT-737. |
Inducible expression system, cell-based apoptosis assays with BH3-only protein expression, drug treatment experiments |
Cell death & disease |
Medium |
22875003
|
| 2016 |
IRBIT interacts with Bcl2l10 and they additively inhibit IP3R in the physiological state. Upon apoptotic stress, IRBIT is dephosphorylated and becomes an inhibitor of Bcl2l10. The IRBIT-Bcl2l10 complex associates in mitochondria-associated membranes (MAMs); IRBIT promotes ER-mitochondria contact and facilitates Ca2+ transfer to mitochondria to promote apoptosis by inhibiting Bcl2l10. |
Co-immunoprecipitation, IP3R activity assays, phosphorylation assays, subcellular fractionation (MAM isolation), Ca2+ imaging, IRBIT knockdown |
eLife |
High |
27995898
|
| 2016 |
Bcl2l10 co-localizes on meiotic spindles with Tpx2 and Aurora kinase A (Aurka); Bcl2l10 is present in the same complex as Tpx2. Bcl2l10 RNAi decreases Tpx2 and Aurka expression while increasing phospho-Aurka, resulting in decreased Aurka catalytic activity, disrupted MTOC formation, and impaired meiotic spindle assembly. |
Co-immunoprecipitation, immunofluorescence co-localization, RNAi, kinase activity assay |
Cell cycle |
Medium |
27753540
|
| 2018 |
Nrh/BCL2L10 localizes to the endoplasmic reticulum and makes BH4 domain-dependent interactions with the ligand-binding domain of IP3R (type 1/3 Ca2+ channel), negatively regulating ER-Ca2+ release to mediate anti-apoptosis. Disrupting Nrh/IP3R complexes with BH4 mimetic peptides inhibits breast cancer cell growth in vitro and in vivo. |
Immunofluorescence/confocal localization, co-immunoprecipitation, BH4-domain deletion mutagenesis, Ca2+ release assays, in vitro and in vivo tumor growth assays |
Cancer research |
High |
29330143
|
| 2019 |
BCL-B binds phospho-Parkin directly and inhibits its phosphorylation, thereby suppressing mitophagy in hepatic stellate cells. BCL-B knockdown increases both mitophagy and apoptosis in HSCs, while BCL-B overexpression has the opposite effects. |
Co-immunoprecipitation of BCL-B with phospho-Parkin, siRNA knockdown, overexpression, mitophagy assays, apoptosis assays |
Experimental & molecular medicine |
Medium |
30635551
|
| 2019 |
BCL2L10 interacts with BECN1 (Beclin-1) in hepatoma cells; this interaction reduces the association between BECN1 and PI3KC3, thereby suppressing autophagy via the PI3K/AKT signaling pathway. |
Co-immunoprecipitation, ELISA, immunofluorescence co-localization, autophagic flux monitoring (LC3B-II/P62), PI3K/AKT pathway analysis |
Aging |
Medium |
30696802
|
| 2020 |
BCL2L10 expression is driven by STAT3-mediated transcription; functional STAT3 responsive elements were identified in the BCL2L10 promoter. BCL2L10 confers resistance to cisplatin, dacarbazine, and ABT-737 in melanoma; genetic and pharmacological inhibition of BCL2L10 sensitized cells to cisplatin and ABT-737. |
Reporter assays, site-directed mutagenesis of STAT3 binding sites, ChIP analysis, siRNA knockdown, pharmacological inhibition |
Cancers |
Medium |
33396645
|
| 2021 |
UBQLN4 interacts with and stabilizes BCL2L10, preventing mesothelioma cell apoptosis in response to DNA damage. UBQLN4 itself is a substrate of ATM kinase. |
Co-immunoprecipitation, functional genetic screening, apoptosis assays |
Molecular oncology |
Medium |
34245648
|
| 2011 |
Human BCL2L10 has evolved a calcium-binding motif in its α5-α6 interhelical region through acquisition of critical negatively charged residues. Deletion of the N-terminal extension had no significant functional impact in HeLa cells, but the interhelical region mutation affects function. |
Site-directed mutagenesis, truncation constructs, biochemical assays, phylogenetic analysis |
Molecular biology and evolution |
Medium |
21705382
|
| 2001 |
Human Boo/Diva (BCL2L10) is not exclusively localized to mitochondria before apoptosis induction; EGFP-Boo/Diva translocates to mitochondria during vincristine-induced apoptosis. Overexpression of human Boo/Diva promoted cell death in HeLa and 293 cells. Bcl-XL interacts with Boo but cannot protect cells from Boo/Diva-induced cell death. |
GFP-fusion live imaging, co-immunoprecipitation, overexpression apoptosis assays |
Biochimica et biophysica acta |
Medium |
11566354
|
| 2001 |
In human glioma cells, Diva/Boo (BCL2L10) inhibits apoptosis induced by CD95 ligand or chemotherapeutic drugs, and interferes with apoptotic signaling downstream of cytochrome c release but upstream of caspase activation, consistent with inhibition of the apoptosome/Apaf-1. |
Overexpression assays, apoptosis induction with multiple stimuli, cytochrome c release and caspase activation measurements |
FEBS letters |
Medium |
11557035
|
| 2013 |
BCL-B promotes lung cancer invasiveness by direct interaction with the effector protein BOK; this interaction promotes sublethal MOMP generating apoptosis-flatliners that become drug-tolerant persister cells, and engages EMT to enhance cancer cell invasiveness. |
Co-immunoprecipitation, MOMP assays, drug-tolerant persister cell characterization, EMT marker analysis |
Cells |
Medium |
39996719
|