| 1989 |
The cytoplasmic domain of uvomorulin (CDH1/E-cadherin) associates with three independent proteins of 102, 88, and 80 kDa (named catenin alpha, beta, and gamma, respectively), as demonstrated by immunoprecipitation using cytoplasmic vs. extracellular deletion constructs; these catenins are conserved across species and form a new protein group linking uvomorulin to the cytoskeleton. |
Co-immunoprecipitation with deletion mutants expressed in NIH 3T3, L cells, HeLa, and avian fibroblasts; peptide pattern analysis |
The EMBO journal |
High |
2788574
|
| 1988 |
Uvomorulin mediates an early adhesion event that is prerequisite for assembly of all elements of the epithelial junctional complex (zonula adherens, zonula occludens, desmosomes); inhibition with blocking antibodies/Fab fragments prevents junction formation in a Ca2+ switch assay, but established tight junctions are resistant to antibody disruption. |
Ca2+ switch assay with blocking antibodies and Fab fragments; fluorescence staining for ZO-1, actin (ZA), desmoplakin; transepithelial resistance measurement in MDCK cells |
The Journal of cell biology |
High |
3049625
|
| 1990 |
Catenin complex formation with uvomorulin is mediated by a specific 72-amino acid domain (encoded largely by a single exon) in the cytoplasmic region; catenin beta binds more directly to this domain while catenin alpha mediates association with actin filaments; catenin binding is required for adhesive function of uvomorulin in cell aggregation assays. |
Expression of chimeric H-2Kd/uvomorulin constructs and deletion mutants in L cells; immunoprecipitation; cell aggregation assays; biochemical fractionation with actin bundles |
Proceedings of the National Academy of Sciences of the United States of America |
High |
2349235
|
| 1987 |
The extracellular domain of uvomorulin contains three internally repeated domains of 112 residues (generated by gene duplication), each with two putative Ca2+-binding sites in external loops; the protein also has a single transmembrane region and a cytoplasmic domain, showing 65% identity to chicken L-CAM. |
Protein sequencing of purified uvomorulin; amino acid sequence analysis and secondary structure prediction; sequence comparison |
The EMBO journal |
High |
3501370
|
| 1985 |
A 26 kDa extracellular fragment of uvomorulin, generated by protease digestion and recognized by blocking monoclonal antibody DECMA-1, is implicated in the adhesive function; the same fragment is recognized by other function-blocking antibodies that disrupt MDCK monolayers. |
Monoclonal antibody blocking of embryo compaction and MDCK cell adhesion; protease digestion mapping of antigenic fragment; immunoreactivity comparison across blocking antibodies |
The EMBO journal |
Medium |
2419126
|
| 1985 |
Uvomorulin localizes to the intermediate junctions (zonula adherens) of adult intestinal epithelial cells, as demonstrated by electron microscopic immunolocalization. |
Electron microscopy with immunolabeling of adult intestinal epithelial cells |
The Journal of cell biology |
Medium |
3880756
|
| 1991 |
Alpha-catenin is a vinculin homologue and complexes with multiple cadherins (uvomorulin/E-cadherin, N-cadherin, P-cadherin, A-CAM, U-cadherin); in cadherin-negative L cells, alpha-catenin is diffusely cytoplasmic but concentrates at membrane contacts upon uvomorulin expression, suggesting it mediates cytoskeletal anchorage downstream of cadherin engagement. |
Immunoprecipitation with anti-alpha-catenin antibodies; molecular cloning and sequence analysis; immunofluorescence in cadherin-negative and uvomorulin-transfected L cells |
Proceedings of the National Academy of Sciences of the United States of America |
High |
1924379
|
| 1992 |
The uvomorulin-catenin complex is composed of one molecule of uvomorulin, one or two molecules of beta-catenin, and one molecule of alpha-catenin; beta-catenin associates with the uvomorulin precursor (135 kDa) early in biosynthesis whereas alpha-catenin joins the complex later, around the time of endoproteolytic processing. |
Biochemical analysis of immunoprecipitated complexes; pulse-chase experiments; stoichiometry analysis |
The Journal of cell biology |
High |
1734027
|
| 1990 |
Correct proteolytic processing of the uvomorulin precursor segment is required for its cell adhesive function; unprocessed uvomorulin that reaches the cell surface forms catenin complexes and is Ca2+-protected but is non-functional in cell adhesion assays; cleavage at the correct site activates adhesion while cleavage at incorrect sites does not, indicating the amino-terminal region of mature uvomorulin is important for adhesion. |
Site-directed mutagenesis of protease recognition sites; expression of mutant polypeptides in L cells; cell adhesion assays; treatment with specific proteases (factor Xa, trypsin) |
The Journal of cell biology |
High |
2211831
|
| 1991 |
E-cadherin (uvomorulin)-mediated cell-cell contacts inhibit invasive migration of L cells into collagen gels in a cell density-dependent manner, establishing E-cadherin as a contact inhibitor of invasion; single cells expressing E-cadherin show normal invasiveness, indicating the effect requires cell-cell contact. |
Stable transfection of L cells with E-cadherin cDNA; 3D collagen gel invasion assay; blocking antibody reversal experiment; time-lapse videoscopy; wound closure assay |
The Journal of cell biology |
High |
1649199
|
| 1991 |
Uvomorulin is synthesized as a 135 kDa precursor glycosylated in the endoplasmic reticulum, processed to the mature 120 kDa form in the late Golgi prior to cell surface delivery; glycosylation is not required for processing or surface transport; surface uvomorulin has a t½ of ~5 h and becomes Triton X-100 insoluble and concentrates at cell contacts upon Ca2+-dependent adhesion. |
Pulse-chase biosynthetic labeling; domain-selective biotinylation; Triton X-100 fractionation in MDCK cells; tunicamycin inhibition of glycosylation |
The Journal of biological chemistry |
High |
1918074
|
| 1990 |
Uvomorulin is delivered directly to the basolateral surface of MDCK cells with only 2% mistargeting to the apical domain, establishing its direct basolateral targeting in polarized epithelial cells. |
Pulse-chase combined with domain-selective cell-surface biotinylation and streptavidin-agarose precipitation in MDCK cells |
The Journal of cell biology |
Medium |
2335561
|
| 1990 |
The membrane-proximal region of uvomorulin, containing a cluster of cysteine residues, is involved in the adhesive mechanism; reduction of disulfide bonds by DTT blocks close cell-cell contacts and cell flattening (but not aggregation) and increases trypsin susceptibility of this region, indicating a conformational contribution to adhesion. |
DTT treatment of cells; cell adhesion assays; trypsin sensitivity assay of membrane-proximal domain; epitope mapping of DECMA-1 |
Mechanisms of development |
Medium |
1710917
|
| 1991 |
Uvomorulin is the dominant functional cadherin on pancreatic islet cells mediating Ca2+-dependent aggregation; anti-uvomorulin Fab fragments block B-cell aggregation to the same extent as EDTA (Ca2+ chelation), confirming its role as the principal Ca2+-dependent adhesion molecule in islets. |
Anti-uvomorulin Fab fragment blocking of islet cell aggregation; flow cytometry; sorting of B- and non-B-cells; mild trypsin/Ca2+ digestion to remove Ca2+-independent CAMs |
Developmental biology |
Medium |
1936561
|
| 1996 |
Uvomorulin is phosphorylated at the 8-cell stage during compaction; prevention of compaction by prolonged low Ca2+ exposure reduces the level of uvomorulin phosphorylation and perturbs its localization to cell-cell contacts, though phosphorylation does not appear to directly regulate adhesive function. |
Phosphorylation analysis in mouse embryos under conditions preventing, reversing, or inducing compaction; immunolocalization |
Molecular reproduction and development |
Low |
8722695
|
| 2000 |
CDC6 is targeted for ubiquitin-mediated proteolysis by APC/C in complex with CDH1 (APC-CDH1) during G1; CDH1 ubiquitinates CDC6 in vitro; destruction box and KEN-box mutations in CDC6 stabilize it in G1 and quiescent cells; both APC and CDH1 are required and limiting for CDC6 proteolysis in vivo. |
In vitro ubiquitination assay with APC-CDH1; point mutagenesis of destruction box and KEN-box; in vivo proteolysis assay with CDH1 depletion; cell cycle analysis |
Genes & development |
High |
10995389
|
| 2003 |
CDH1 (APC/C coactivator) localizes dynamically to the nucleus during interphase and to the centrosome during metaphase and anaphase; nuclear accumulation correlates with reduction of cyclin A; a nuclear localization signal (NLS) in CDH1 drives nuclear import; phosphorylation of serine/threonine residues in the NLS inhibits nuclear import, keeping hyperphosphorylated CDH1 in the cytoplasm. |
GFP-CDH1 live-cell imaging; CDH1-4D phosphomimetic mutant localization; NLS-GFP fusion targeting assay; cyclin A immunostaining correlation; cell cycle staging |
The Journal of biological chemistry |
Medium |
12560341
|
| 2004 |
Mammalian CDH1 (Fzr) undergoes APC/C-mediated auto-degradation during G1 and G0 via two RXXL-type destruction boxes; CDH1 activates APC/C to degrade itself; destruction-box mutations stabilize CDH1 in G1/G0. |
Mutation of destruction boxes in CDH1; Xenopus interphase extract APC/C activation assay; cell cycle analysis of CDH1 levels; APC/C co-immunoprecipitation |
The EMBO journal |
High |
15029244
|
| 2005 |
Cdh1-APC (APC/C-Cdh1) is active in postmitotic neurons and required for their survival; Cdh1 depletion by shRNA causes cyclin B1 accumulation, aberrant S-phase entry, and apoptotic death in terminally differentiated neurons, demonstrating that Cdh1 prevents aberrant cell cycle re-entry by keeping cyclin B1 low. |
shRNA knockdown of Cdh1 in postmitotic neurons; cyclin B1 immunoblot; BrdU incorporation for S-phase entry; apoptosis assay |
The Journal of neuroscience |
High |
16148219
|
| 2008 |
In the G2 DNA damage response, Cdc14B phosphatase translocates from the nucleolus to the nucleoplasm and activates APC/C(Cdh1), which then degrades Plk1; this stabilizes Claspin and Wee1 to enforce G2 checkpoint arrest; Claspin is also an APC/C(Cdh1) substrate in G1 and is protected from degradation by deubiquitylase Usp28 in response to G2 damage. |
Cdc14B translocation imaging; Plk1 degradation assay after DNA damage; Claspin and Wee1 stability assays; Cdh1 siRNA depletion; G2 checkpoint analysis |
Cell |
High |
18662541
|
| 2009 |
Claspin is a novel Cdh1 substrate; Cdh1 inactivation leads to Claspin accumulation and activation of the Claspin/Chk1 pathway; Cdh1 also competes with E2F1 to bind hypophosphorylated Rb, reciprocally regulating the Rb pathway; acute Cdh1 depletion in primary fibroblasts (with intact p53/Rb) induces premature senescence, while depletion in HeLa cells causes premature S-phase entry. |
Affinity purification-mass spectrometry; co-immunoprecipitation of Claspin-Cdh1; siRNA knockdown; Chk1 activation assay; senescence assay; S-phase entry analysis |
Molecular biology of the cell |
Medium |
19477924
|
| 2009 |
Cdh1 controls TACC3 protein stability through APC/C; Cdh1 physically interacts with TACC3; Cdh1 depletion prolongs TACC3 levels during mitotic exit; overexpression or knockdown of Cdh1 increases or decreases ubiquitinated TACC3, respectively; multiple domains of TACC3 are involved in Cdh1-regulated degradation. |
Yeast two-hybrid screen; co-immunoprecipitation; siRNA knockdown; ubiquitination assay; domain mapping |
Cell cycle |
Medium |
19823035
|
| 2010 |
Nuclear-localized JNK is degraded by APC/C(Cdh1) during mitotic exit and G1; conversely, JNK phosphorylates Cdh1 during G2 and early mitosis, changing Cdh1 subcellular localization and reducing its ability to activate APC/C during G2/M; expression of non-degradable JNK induces prometaphase-like arrest. |
Co-immunoprecipitation; in vitro kinase assay (JNK phosphorylation of Cdh1); non-degradable JNK expression; subcellular localization imaging; APC/C activity assay |
Nature cell biology |
High |
20581839
|
| 2013 |
APC/C-Cdh1 ubiquitin ligase activity is required for terminal differentiation of cortical neurons and neurogenesis in vivo; Cdh1 knockout in mouse embryos delays cell cycle exit of neural progenitors, causing replicative stress and p53-mediated apoptosis, resulting in reduced cortical neuron number and cortex size. |
Embryo-restricted Cdh1 knockout mouse; cortical neuron differentiation assay in vitro; in vivo cortex size measurement; p53 pathway analysis; cell cycle exit assay |
Nature communications |
High |
24301314
|
| 2014 |
APC/C(Cdh1) controls CtIP stability during the cell cycle and after DNA damage; CtIP interacts with Cdh1 through a conserved KEN box; KEN-box mutation impedes CtIP ubiquitylation and stabilizes CtIP in G1 and after DNA damage in G2; disruption of the CtIP-Cdh1 interaction delays CtIP clearance from damage foci, increases DNA-end resection, and reduces homologous recombination efficiency. |
Integrated proteomics; co-immunoprecipitation; KEN-box mutagenesis; ubiquitylation assay; DNA damage foci analysis; HR efficiency assay |
The EMBO journal |
High |
25349192
|
| 2014 |
HMGA2 epigenetically silences the Cdh1 (E-cadherin) gene during EMT by remodeling chromatin to recruit de novo DNA methyltransferase DNMT3A to the Cdh1 promoter, leading to promoter hypermethylation; CDH1 expression can be restored by treatment with the demethylating agent 5-aza-2'-deoxycytidine. |
Ectopic HMGA2 expression in NMuMG cells; bisulfite sequencing of Cdh1 promoter; ChIP for DNMT3A binding; 5-aza-2'-deoxycytidine rescue experiment; invasion assay |
Nucleic acids research |
Medium |
25492890
|
| 2016 |
APC/C(Cdh1) inactivation is the commitment (point of no return) for cell-cycle entry; APC/C(Cdh1) inactivation occurs as a rapid, bistable switch shortly before DNA replication, initiated by cyclin E/Cdk2 and made irreversible by Emi1; cells exposed to stress after APC/C(Cdh1) inactivation cannot return to quiescence, while stress before inactivation can revert them. |
Single-cell live imaging with APC/C(Cdh1) reporter; cyclin E/Cdk2 perturbation; Emi1 depletion; stress exposure at defined cell cycle stages; flow cytometry |
Cell |
High |
27368103
|
| 2016 |
Cdh1 promotes APC-dependent non-proteolytic monoubiquitination and transcriptional activation of the homeobox transcription factor Goosecoid (Gsc) to regulate craniofacial development; neural crest-specific Cdh1-knockout mice display domed skull, short snout, and twisted nasal bone, with reduced Gsc/Sox6 transcriptional activity. |
Neural crest-specific Cdh1 conditional knockout mice; ubiquitination assay of Gsc; gene expression analysis of Gsc targets; phenotypic analysis of craniofacial bones; comparison with Wwp2-deficient mice |
Cell research |
Medium |
27126000
|
| 2017 |
APC/C(Cdh1) degrades LATS kinases to regulate Hippo signaling during the cell cycle; CDH1 recognizes LATS kinases and promotes their degradation, causing YAP/TAZ activity to peak in G1; in Drosophila, Cdh1 regulates the LATS homolog Warts through a conserved mechanism, and Cdh1 reduction increases Warts levels and decreases eye/wing size in a Yorkie-dependent manner. |
Co-immunoprecipitation of Cdh1-LATS interaction; LATS protein stability assay after CDH1 knockdown/overexpression; YAP/TAZ reporter assay; Drosophila genetic epistasis (Cdh1/Warts/Yorkie); cell cycle synchronization |
Proceedings of the National Academy of Sciences of the United States of America |
High |
31000600
|
| 2017 |
APC/C(Cdh1)-mediated degradation of Rock2 (Rho kinase 2) maintains dendritic network integrity and memory formation in neurons; postnatal Cdh1 conditional knockout causes Rock2 accumulation, dendritic spine/synapse loss, memory impairment, and neurodegeneration; pharmacological inhibition of Rock activity with fasudil prevents these defects. |
Cdh1 conditional knockout mouse (postnatal); Rock2 ubiquitination and stability assay; dendritic morphology analysis; memory tests; fasudil pharmacological rescue; Rock2 accumulation in AD patient brain |
Proceedings of the National Academy of Sciences of the United States of America |
High |
28396402
|
| 2019 |
Cdh1 suppresses c-Src kinase activity in an APC-independent manner; hyperactive c-Src reciprocally inhibits APC(Cdh1) E3 ligase activity by directly phosphorylating Cdh1 at its N-terminus, disrupting interaction between Cdh1 and the APC core complex; pharmacological c-Src inhibition restores APC(Cdh1) tumor suppressor function. |
Cdh1 depletion in breast cancer cells; co-immunoprecipitation of Cdh1-APC; in vitro kinase assay (c-Src phosphorylation of Cdh1); APC ubiquitination assay; mouse mammary tumor model with PTEN loss |
Nature communications |
High |
31420536
|
| 2019 |
APC/C-Cdh1 promotes Skp2 ubiquitination and degradation by recognizing Skp2 after dephosphorylation at S72; dioscin attenuates Skp2 S72 phosphorylation, promoting Skp2-Cdh1 interaction and K48-linked polyubiquitination, leading to Skp2 degradation and suppression of glycolysis in colorectal cancer cells. |
Co-immunoprecipitation of Skp2-Cdh1; ubiquitination assay (K48 linkage); CRISPR-Cas9 Cdh1 knockout rescue experiment; Skp2 half-life assay; xenograft model |
EBioMedicine |
Medium |
31806563
|
| 2019 |
APC/C-CDH1 targets IDH3β (isocitrate dehydrogenase 3β) for proteasomal degradation during G1; IDH3β overexpression accelerates G1-S transition and promotes cell proliferation in vitro and in vivo partly through α-ketoglutarate production and PFKFB3 upregulation. |
Co-immunoprecipitation of CDH1-IDH3β; IDH3β protein stability assay; cell cycle synchronization; proliferation assay; xenograft; α-KG and PFKFB3 metabolic analysis |
Cancer research |
Medium |
31053633
|
| 2020 |
Cdh1-APC regulates protein synthesis in neurons through an FMRP-dependent mechanism; Cdh1-APC interacts with stress granule proteins including FMRP; inhibition of Cdh1-APC activity increases stress granule formation in a FMRP-dependent manner, proposing that Cdh1-APC targets stress granule proteins to inhibit their formation and promote protein synthesis. |
Proteomic profiling of Cdh1-APC interactome; stress granule assay upon Cdh1-APC inhibition; FMRP dependency test using knockdown; co-immunoprecipitation |
iScience |
Low |
32434143
|
| 2020 |
In mouse oocytes, a slow-evolving DNA damage response involves APC-Cdh1-mediated proteolysis of cyclin B1 (Cdk1 activator) rather than inhibitory Cdk1 phosphorylation; this pathway requires Cdc14B-dependent APC-Cdh1 activation and is counteracted by Emi1; loss of Senataxin (Setx) causes DNA damage accumulation and APC-Cdh1-dependent G2 arrest in oocytes. |
Setx-deleted mouse oocytes; DNA damage induction; cyclin B1 protein level assay; Cdk1 phosphorylation assay; Cdc14B and Emi1 manipulation; G2 arrest assay |
The Journal of cell biology |
Medium |
32328643
|
| 2020 |
The Cdh1-FoxM1-Apc axis regulates muscle development and regeneration; Cdh1 (Fzr1) is required for FoxM1 ubiquitylation and degradation in muscle satellite cells; loss of Cdh1 promotes satellite cell cycle entry and pool depletion after serial injuries; haploinsufficiency of FoxM1 ameliorates regeneration defects in Cdh1 knockout mice. |
Cdh1 conditional knockout in muscle satellite cells; FoxM1 ubiquitination assay; serial muscle injury model; FoxM1 haploinsufficiency rescue; gene expression analysis |
Cell death & disease |
Medium |
32152291
|
| 2022 |
APC/C CDH1 binds and ubiquitinates STAT3 preferentially during mitosis; inhibition of phosphatases decreases STAT3 ubiquitination, suggesting that dephosphorylated STAT3 is the preferred substrate. |
Co-immunoprecipitation of APC/C CDH1-STAT3; ubiquitination assay across cell cycle phases; phosphatase inhibitor experiments in HEK293T cells |
The international journal of biochemistry & cell biology |
Low |
36400381
|
| 2022 |
Amyloid-β (Aβ25-35) triggers Cdk5-mediated phosphorylation of Cdh1 in neurons, causing Cdh1 disassembly from the APC/C complex, inactivating APC/C-Cdh1, which leads to Rock2 protein stabilization and activation; a phosphodefective Cdh1 mutant prevents Aβ-induced neuronal apoptosis, while a phosphomimetic Cdh1 does not. |
Phosphodefective and phosphomimetic Cdh1 mutant expression; co-immunoprecipitation of Cdh1-APC/C; Rock2 stability assay; Cdk5 kinase assay; neuronal apoptosis assay in vitro and in vivo |
Frontiers in pharmacology |
Medium |
35496276
|
| 2015 |
Casein kinase 1δ (CK1δ) is an APC/C(Cdh1) substrate; conditional deletion of Cdh1 in cerebellar granule cell progenitors results in higher CK1δ levels; APC/C(Cdh1) also downregulates CK1δ during cell-cycle exit, controlling granule cell progenitor expansion vs. differentiation. |
Conditional Cdh1 deletion in cerebellar GCPs; CK1δ protein level assay; CK1δ degradation assay by APC/C(Cdh1); GCP proliferation and cell-cycle exit assays |
Cell reports |
Medium |
25843713
|