| 2001 |
BVES/POPDC1 is a membrane protein with three transmembrane helices, an extracellular N-terminus and an intracellular C-terminus, confined to the lateral membrane compartment of epithelial cells. It accumulates at points of cell-cell contact before E-cadherin appearance, and transfection into non-adherent L-cells confers adhesive behavior, establishing it as a novel cell adhesion molecule. |
Transfection into L-cells (adhesion assay), antibody inhibition of epicardial migration, subcellular localization by immunofluorescence |
Development (Cambridge, England) |
High |
11493530
|
| 2003 |
The membrane topology of BVES/Pop1A consists of an extracellular N-terminus (glycosylated), three transmembrane domains, and a cytoplasmic C-terminus. This was established by glycosylation assays, topology-reversal constructs, and differential immunoreactivity with/without detergent permeabilization. |
Glycosylation assays, glycosylation-site insertion constructs, co-expression topology experiments, selective immunoreactivity assay on intact vs. permeabilized cells |
The Journal of biological chemistry |
High |
12815060
|
| 2005 |
BVES localizes with tight junction markers ZO-1 and occludin in polarized epithelial cells. GST pull-down demonstrates a direct interaction between ZO-1 and the intracellular C-terminal tail of BVES. Knockdown of BVES causes loss of transepithelial resistance and junctional protein membrane localization, demonstrating BVES modulates tight junction integrity. |
GST pull-down, immunolocalization with TJ markers, Ca2+-chelation/TPA challenge, siRNA knockdown with transepithelial resistance measurement |
Journal of cell science |
High |
16188940
|
| 2008 |
BVES directly interacts with GEFT (a GEF for Rho-family GTPases), co-localizing in adult skeletal muscle. Exogenous BVES expression reduces Rac1 and Cdc42 activity levels without affecting RhoA activity, and produces corresponding changes in cell locomotion speed and cell roundness. |
Co-immunoprecipitation/pulldown interaction assay, co-localization, Rho GTPase activity assays, cell motility and morphology analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
18541910
|
| 2008 |
BVES interacts with itself through a specific intracellular homodimerization domain (amino acids 268-274, critical residues lysines 272 and 273). Mutation of these lysines abolishes homodimerization and cell adhesion, disrupts ZO-1 and E-cadherin membrane localization, reduces transepithelial resistance, and promotes epithelial-to-mesenchymal transition. |
GST pull-down, SPOTS analysis, site-directed mutagenesis, transepithelial resistance, immunofluorescence of junctional proteins |
PloS one |
High |
18493308
|
| 2010 |
BVES directly interacts with VAMP3 (a SNARE protein), and disruption of BVES impairs recycling of transferrin and β1-integrin (consistent with VAMP3 dysfunction). Morpholino knockdown of BVES in Xenopus specifically inhibits transferrin receptor recycling, causing gastrulation defects; BVES-depleted cells show impaired spreading and adhesion on fibronectin. |
Co-immunoprecipitation, VAMP3 recycling assays (transferrin/integrin recycling), Xenopus morpholino knockdown, kymographic analysis of cell spreading |
The EMBO journal |
High |
20057356
|
| 2011 |
BVES regulates epithelial-to-mesenchymal transition (EMT): re-expression of BVES in colorectal cancer cell lines promotes epithelial phenotype with decreased proliferation, migration, and invasion; a dominant-negative C-terminus-truncated BVES mutant in corneal epithelial cells induces mesenchymal features. These changes are associated with alterations in adherens junction and tight junction composition. |
Stable re-expression of BVES in CRC cell lines, dominant-negative mutant expression, orthotopic xenograft, migration/invasion assays, TJ/AJ protein localization |
The Journal of clinical investigation |
High |
21911938
|
| 2011 |
BVES modulates RhoA signaling and ZONAB/DbpA transcriptional activity through tight junction regulation. C-terminus-truncated BVES disrupts membrane localization of endogenous BVES and ZO-1 interaction, increases RhoA activity (measured by FRET), increases ZONAB/DbpA transcriptional activity (luciferase reporter), and reduces membrane localization of GEF-H1. |
Stable transfection of truncated vs. wild-type BVES, FRET-based RhoA activity assay, luciferase reporter for ZONAB/DbpA, immunolocalization |
PloS one |
Medium |
21283798
|
| 2012 |
In zebrafish, loss of BVES disrupts the PAR junctional complex, particularly atypical PKC (aPKC). Knockdown causes impaired epidermal barrier function and osmotic stress sensitivity; rescue with ZO-2/par-3/par-6/aPKC mRNAs partially restores viability and barrier function, placing BVES upstream of the PAR complex and aPKC in tight junction assembly. |
Morpholino knockdown in zebrafish, mRNA rescue experiments, immunofluorescence of aPKC localization |
The Journal of biological chemistry |
Medium |
23019331
|
| 2013 |
BVES directly interacts with NDRG4, and this interaction is required for directional epicardial cell movement. BVES/NDRG4 interaction regulates trafficking of internalized fibronectin through the autocrine ECM deposition pathway. TIRF microscopy shows BVES/NDRG4 interaction is required for fusion of recycling endosomes with the basal cell surface. |
Protein-protein interaction assays, live TIRF microscopy of recycling endosome fusion, fibronectin recycling assay, directional migration analysis |
Molecular biology of the cell |
High |
24048452
|
| 2013 |
POPDC1/BVES is a caveolae-associated protein: it co-localizes and co-immunoprecipitates with caveolin-3 in cardiomyocytes and co-sediments with caveolin-3 in equilibrium density gradients. Popdc1-null hearts show a 70% reduction in caveolae number, impaired Ca2+ transients, increased oxidative stress vulnerability, and loss of ischemic preconditioning. |
Co-immunoprecipitation with caveolin-3, equilibrium density gradient sedimentation, electron microscopy, Ca2+ transient measurement, Langendorff ischemia/reperfusion model in knockout mice |
PloS one |
High |
24066022
|
| 2015 |
The disease-causing POPDC1(S201F) missense variant shows ~50% reduction in cAMP-binding affinity and causes impaired membrane trafficking of both POPDC1(S201F) and WT POPDC2 in patient skeletal muscle. Forced expression in HL-1 cardiomyocytes increases hyperpolarization and action potential upstroke velocity. The homologous zebrafish mutation recapitulates cardiac arrhythmia and skeletal muscle phenotypes. |
cAMP-binding affinity assay (S201F vs WT), immunohistochemistry of patient muscle for membrane trafficking, HL-1 cell electrophysiology, zebrafish knockin model |
The Journal of clinical investigation |
High |
26642364
|
| 2016 |
BVES interacts with PR61α, a PP2A regulatory subunit, identified by yeast two-hybrid screen and validated mechanistically. This interaction mediates c-Myc protein destruction: loss of BVES leads to increased c-Myc levels and Wnt activation, promoting inflammatory tumourigenesis in vivo. |
Yeast two-hybrid screen, mechanistic studies in multiple cell lines, Bves-/- mouse AOM/DSS tumourigenesis model, molecular analysis of c-Myc and Wnt pathway |
Gut |
Medium |
28389570
|
| 2016 |
BVES loss in cardiomyocytes under serum deprivation upregulates the pro-apoptotic protein Bnip3 and reduces Rac1-GTPase activity and Akt phosphorylation. Combined Popdc1/Bves and Bnip3 silencing attenuates cell injury; chromatin immunoprecipitation shows increased FoxO3 binding to the Bnip3 promoter, while NFκB is excluded from nuclei and shows decreased Bnip3 promoter binding in BVES-deficient cells. |
siRNA-mediated gene silencing, Rac1 GTPase activity assay, Western blot for Akt phosphorylation, chromatin immunoprecipitation (ChIP) for FoxO3 and NFκB at Bnip3 promoter |
Journal of cellular biochemistry |
Medium |
27886395
|
| 2009 |
Overexpression of BVES in trabecular meshwork cells increases tight junction formation (increased occludin, cingulin, ZO-1) and decreases RhoA activation (FRET assay) and myosin light chain phosphorylation (MLC-p), establishing a regulatory pathway upstream of RhoA in these cells. |
Stable transfection/overexpression, FRET-based RhoA activity assay, Western blot for MLC-p, transepithelial resistance, TJ protein expression |
Investigative ophthalmology & visual science |
Medium |
19628742
|
| 2022 |
POPDC1 scaffolds a complex of adenylyl cyclase 9 (AC9) and TREK-1 potassium channels in heart. TREK-1 binds the AC9:POPDC1 complex and co-purifies in a POPDC1-dependent manner with AC9 activity. The AC9:POPDC1 interaction is cAMP-independent, but TREK-1 association with the complex is reduced upon β-adrenergic receptor stimulation. AC9 activity is required for βAR-mediated reduction of TREK-1 complex formation and for reversing POPDC1 enhancement of TREK-1 currents. Adcy9 knockout mice show bradycardia and stress-induced heart rate variability. |
Co-immunoprecipitation, co-purification assays, electrophysiology (TREK-1 currents), Adcy9 knockout mouse model with heart rate recording, β-adrenergic receptor stimulation experiments |
EMBO reports |
High |
36254885
|
| 2020 |
POPDC1 and POPDC2 interact with XIRP1 (Xin actin binding repeat-containing protein 1) and actin, identified by proteomic pull-down from human skeletal myotubes. The POPDC1-XIRP1 interaction was confirmed in adult rat heart extracts. Both POPDC1/2 and XIRP1 co-localize at intercalated discs and T-tubules in adult heart. |
Bead-based pulldown with proteomic analysis, co-immunoprecipitation from adult rat heart, immunolocalization with new monoclonal antibodies |
BMC molecular and cell biology |
Medium |
33261556
|
| 2021 |
BVES is a novel interacting protein of ANO5: identified by proximity labeling (BioID2) mass spectrometry and confirmed by co-immunoprecipitation. The N-terminus of ANO5 mediates interaction with the C-terminus of BVES. ANO5 and BVES co-localize at the ER membrane in muscle cells. Genome editing-mediated disruption of either ANO5 or BVES significantly suppresses C2C12 myoblast differentiation. |
BioID2 proximity labeling, mass spectrometry, co-immunoprecipitation, co-localization, CRISPR/genome editing knockout with differentiation assay |
Cell & bioscience |
Medium |
34963485
|
| 2023 |
BVES functions as a negative feedback regulator of adenylyl cyclase 9 (ADCY9)-mediated cAMP signaling in skeletal muscle. BVES interacts with and negatively regulates ADCY9's activity. BVES deletion increases PKA signaling, promoting FoxO-mediated ubiquitin-proteasome degradation and autophagy. Viral BVES re-expression in Bves-deficient muscle reverses these defects. |
BVES knockout mice, co-immunoprecipitation of BVES-ADCY9, cAMP/PKA activity assays, AAV-mediated rescue, FoxO pathway analysis, autophagy markers |
Nature communications |
High |
36997581
|
| 2022 |
In BVES-knockout mice, BVES maintains vascular smooth muscle cell (VSMC) contractile phenotype through Dusp1-dependent suppression of p38MAPK and ERK1/2. BVES knockdown reduces Dusp1 expression and enhances p38MAPK and ERK1/2 activation; VSMC-specific Bves and Dusp1 overexpression in aortic grafts attenuates neointimal lesion formation. |
RNA sequencing, in vitro knockdown/overexpression in VSMCs, in vivo rat aortic graft model with VSMC-specific Bves overexpression, p38MAPK/ERK1/2 phosphorylation Western blot |
Atherosclerosis |
Medium |
36037759
|
| 2024 |
POPDC1 dysfunction causes AV node dysfunction: popdc1 mutant and knockout zebrafish show reduced heart rate, altered AV delay, slower action potential upstroke, and abnormal calcium transient duration. In adult popdc1 mutant hearts, β-adrenergic receptor stimulation with isoproterenol worsens AV block and alters calcium handling, demonstrating SNS-dependent arrhythmogenesis. |
Functional fluorescent analysis (action potential and calcium transient imaging) in zebrafish larvae and adult isolated hearts, isoproterenol stimulation, popdc1 knockin and knockout zebrafish |
Genes |
Medium |
38540339
|
| 2022 |
Mice lacking POPDC1 show PKA-dependent enhancement in CA1 hippocampal long-term potentiation (LTP) in response to weaker stimulation paradigms and enhanced forskolin-induced potentiation, identifying POPDC1 as a negative regulator of hippocampal synaptic plasticity via cAMP-PKA-PDE signaling. |
Popdc1 knockout mice, acute hippocampal slice electrophysiology (LTP induction protocols), pharmacological PKA manipulation |
Cerebral cortex (New York, N.Y. : 1991) |
Medium |
34937090
|