| 2000 |
Human Scrib (hScrib) is targeted for ubiquitin-mediated degradation by high-risk HPV E6 proteins in complex with the E6AP ubiquitin-protein ligase; hScrib binds directly to E6 via its PDZ domains interacting with a conserved C-terminal PDZ-binding motif on E6. E6 expression induces degradation of hScrib in vivo and loss of tight junction integrity (ZO-1 mislocalization), dependent on the PDZ-binding epitope of E6. |
In vitro ubiquitination assay, co-immunoprecipitation, GFP-hScrib localization in MDCK cells, E6 expression with ZO-1 immunofluorescence |
Molecular and cellular biology |
High |
11027293
|
| 2003 |
Mutation in mouse Scrb1 causes defects in polarization of stereociliary bundles in cochlear hair cells, and Scrb1 genetically interacts with Vangl2 (Loop-tail) in regulating planar cell polarity (PCP) in mammals; double heterozygotes show phenotypes comparable to Vangl2 homozygotes, establishing Scrb1 as a PCP gene. |
Mouse genetics, genetic epistasis (Scrb1 × Vangl2 double heterozygotes), cochlear hair cell morphology analysis |
Nature |
High |
12724779
|
| 2003 |
Disruption of Scrb1 in the circletail mouse (single-base insertion causing frameshift and premature stop) causes craniorachischisis; Scrb1 expression overlaps with Vangl2 expression and circletail genetically interacts with loop-tail (Vangl2), placing Scrb1 in the same pathway as Vangl2 for neural tube closure initiation. |
Positional cloning, sequencing, expression analysis, genetic interaction (Crc × loop-tail cross) |
Human molecular genetics |
High |
12499390
|
| 2003 |
Drosophila Scrib (with Dlg and Lgl) regulates neuroblast asymmetric cell division: Scrib shows apical cortical enrichment at prophase/metaphase, and scrib mutants display defects in basal protein targeting, reduced apical cortical domain size, and asymmetric mitotic spindle defects leading to symmetric or inverted cell divisions. |
Drosophila genetics, immunofluorescence, loss-of-function mutant analysis |
Nature cell biology |
High |
12545176
|
| 2005 |
Scrib directly interacts with the zyxin family member LPP via its PDZ domains binding to the C-terminus of LPP; both proteins colocalize at cell-cell contacts. The interaction links Scrib to a signaling pathway between cell-cell contacts and the nucleus. |
Co-immunoprecipitation, GST pulldown, immunofluorescence colocalization in MDCKII and CV-1 cells |
BMC cell biology |
Medium |
15649318
|
| 2005 |
Scrib also interacts with TRIP6 (another zyxin family member) via its third PDZ domain binding to the TRIP6 C-terminus, but does not interact with zyxin, ajuba, or LIMD1, demonstrating selectivity in Scrib PDZ-domain interactions. |
Co-immunoprecipitation, GST pulldown with deletion constructs, immunofluorescence |
FEBS letters |
Medium |
16137684
|
| 2006 |
Mammalian Scrib controls Cdc42 localization and activation during astrocyte polarized migration by interacting and colocalizing with βPIX (a GEF for Rac/Cdc42) at the leading edge; perturbation of Scrib localization or Scrib-βPIX interaction inhibits βPIX polarized recruitment and Cdc42 activation, which in turn impairs APC and Dlg1 recruitment to the leading edge. |
siRNA knockdown, dominant-negative constructs, immunofluorescence, scratch-wound migration assay, Cdc42 activity assays |
Current biology : CB |
High |
17081755
|
| 2008 |
Scrib associates with PAK (a serine-threonine kinase) through the βPIX/GIT1 scaffold complex at the leading edge; Scrib-deficient cells show decreased cortical PAK, impaired PAK activation by Rac, and loss of polarized active Rac at the leading edge, demonstrating that Scrib is required for PAK and Rac function during cell migration. |
Co-immunoprecipitation, immunofluorescence, siRNA knockdown in T47D cells and primary MEFs, chemotaxis assay, active Rac immunofluorescence |
Human molecular genetics |
High |
18716323
|
| 2009 |
Scrib interacts with MCC (a binding partner for β-catenin) in a PDZ-dependent manner; MCC and Scrib colocalize at the cell membrane, and reduced MCC expression impairs directed cell migration independently of Rac1, Cdc42, and PAK activation. |
Yeast two-hybrid (isolation), co-immunoprecipitation, immunofluorescence, siRNA knockdown, migration assay |
FEBS letters |
Medium |
19555689
|
| 2011 |
Scrib negatively regulates the MAPK cascade to suppress prostate tumorigenesis; Scrib heterozygosity promotes prostate hyperplasia and biallelic Scrib loss leads to prostate intraepithelial neoplasia in mice, with elevated MAPK signaling as the mechanistic driver. |
Conditional/constitutive knockout mouse models, western blot (MAPK), histopathology, in vivo tumor models |
The Journal of clinical investigation |
Medium |
21965329
|
| 2011 |
Missense variants in human SCRIB associated with craniorachischisis cause profound alteration in subcellular protein localization, with diminution or abolition of trafficking to the plasma membrane, identifying defective PCP protein trafficking as a pathogenic mechanism. |
Sequencing of patient samples, subcellular localization assays for variant proteins in cells |
Human mutation |
Medium |
22095531
|
| 2011 |
SCRIB forms at least two distinct protein complexes: (1) SCRIB-ARHGEF7(βPIX)-GIT-PAK and (2) SCRIB-NOS1AP-VANGL; NOS1AP colocalizes with SCRIB and VANGL1 along cellular protrusions in metastatic breast cancer cells. Knockdown of NOS1AP or SCRIB slows breast cancer cell migration and prevents leading-trailing polarity establishment. |
Mass spectrometry, confocal microscopy, shRNA knockdown, migration assay |
Oncogene |
Medium |
22179838
|
| 2012 |
Scrib targets βPIX and PAK2 to adherens junctions; a βPIX-PAK2 complex counterbalances apoptotic stimuli transduced by Scrib and elicited by cadherin-mediated cell-cell adhesion. The Scrib-βPIX-PAK2 complex at adherens junctions modulates anoikis and cell survival in response to osmotic stress. |
Co-immunoprecipitation, immunofluorescence at adherens junctions, siRNA knockdown, apoptosis/anoikis assays |
Current biology : CB |
Medium |
22863318
|
| 2012 |
Scrib's leucine-rich repeat (LRR) domain associates with the co-chaperone Sgt1; HSP90 is also required for Sgt1-Scrib association, and both Sgt1 and HSP90 maintain proper Scrib protein levels. Reduced Scrib stability (following Sgt1-HSP90 inhibition) lowers the abundance of the Scrib-βPIX-PAK complex and blocks HGF-mediated epithelial morphogenesis. |
Co-immunoprecipitation, domain mapping, HSP90 inhibitor treatment, 3D morphogenesis assay, western blot |
Journal of cell science |
Medium |
22623728
|
| 2013 |
SCRIB and MRAS form a complex with SHOC2; SCRIB functions as a PP1-regulatory protein within this complex and antagonizes SHOC2-mediated RAF dephosphorylation through competition for PP1 molecules, thereby suppressing ERK pathway activation. MRAS coordinates ERK pathway dynamics with polarity via this macromolecular complex. |
Co-immunoprecipitation, biochemical competition assay, phosphatase assays, western blot for RAF/ERK phosphorylation |
Molecular cell |
High |
24211266
|
| 2013 |
SCRIB interacts with integrin α5 (identified by Co-IP/mass spectrometry and GST pulldown); Scrib and integrin α5 colocalize at the basal plasma membrane. Scrib depletion reduces integrin α5 protein levels and surface expression by promoting its interaction with Rab7a, lysosomal translocation, and pepstatin-sensitive protease-dependent degradation. Both PDZ and LRR domains of Scrib are required for integrin α5 rescue and directional migration. |
Co-IP/mass spectrometry, GST pulldown, TIRF microscopy, FACS, western blot, siRNA knockdown, lysosome trafficking assays, domain-mutant rescue |
Circulation research |
High |
23362312
|
| 2013 |
In vivo zebrafish knockdown of scrib causes defects in convergence and extension (C&E) movements during gastrulation; Lpp interacts with Scrib (PCP protein) and cooperates with Scrib to mediate C&E, placing Scrib in the noncanonical Wnt/PCP pathway in vertebrates. |
Morpholino knockdown in zebrafish, co-immunoprecipitation, time-lapse analysis, genetic interaction |
Developmental biology |
Medium |
18582857
|
| 2013 |
Scrib loss in mouse lens and corneal epithelium leads to epithelial-to-mesenchymal transition (EMT); mechanistically, Scrib deficiency causes nuclear accumulation of Smad3/Smad4 (TGFβ intermediates), upregulation of Snail, downregulation of E-cadherin and ZO-1, and upregulation of αSMA, placing Scrib as a suppressor of TGFβ-mediated EMT. |
Conditional Cre-loxP Scrib deletion in lens/cornea, immunofluorescence for EMT markers, western blot, nuclear Smad localization |
Developmental biology |
Medium |
24095903
|
| 2013 |
In vivo loss of Scrib in mice (Scrib+/- and Scrib-specific KO) combined with oncogenic KRas(G12D) promotes lung cancer progression, likely through synergistic elevation of RAS-MAPK signaling, showing Scrib acts as a tumor suppressor that limits MAPK output. |
LSL-KRas(G12D) mouse model crossed with Scrib heterozygous mice, western blot for MAPK pathway, histopathology |
Oncogene |
Medium |
24276238
|
| 2013 |
In zebrafish, in vivo dissection of the 8q24.3 CNV shows that SCRIB (as a planar cell polarity effector) and PUF60 (splicing factor) make discrete contributions to a multisystem syndromic phenotype, and their combined suppression exacerbates some phenotypic components, demonstrating a binary genetic interaction. |
Zebrafish morpholino knockdown, combinatorial suppression, phenotypic rescue |
American journal of human genetics |
Medium |
24140112
|
| 2014 |
Scrib interacts physically with Rac1 in embryonic cardiomyocytes (but not with Vangl2 in this tissue); genetic interaction between Scrib and Rac1 is required for proper cytoarchitecture of ventricular trabeculae. Cardiac-specific deletion of Scrib (Nkx2.5-Cre) causes trabecular disruption, ventricular septal defects, and cardiac fibrosis. |
Conditional Cre-loxP KO, co-immunoprecipitation for Scrib-Rac1 and Scrib-Vangl2, histopathology, cardiac morphology analysis |
Cardiovascular research |
Medium |
25139745
|
| 2015 |
Scrib is asymmetrically distributed in dividing satellite (muscle stem) cells, with high Scrib levels in daughter cells committed to myogenic differentiation. Satellite-cell-specific Scrib KO causes a severe defect in muscle regeneration, demonstrating Scrib controls muscle stem cell fate decisions (self-renewal vs. differentiation). |
Conditional satellite-cell-specific Scrib KO mice, immunofluorescence for asymmetric distribution, muscle injury/regeneration assay |
Cell reports |
High |
25704816
|
| 2016 |
Plexin-B1 binding to transmembrane Sema4A triggers reverse signaling; Scrib is a downstream effector of Sema4A identified by mass spectrometry + siRNA screening. Plexin-B1 binding to Sema4A promotes the Sema4A-Scrib interaction, thereby removing Scrib from its βPIX complex, decreasing Rac1 and Cdc42 activity and inhibiting cell migration. |
Mass spectrometry, siRNA screening, co-immunoprecipitation, Rac1/Cdc42 activity assays, cell migration assay |
The Journal of cell biology |
Medium |
28007914
|
| 2017 |
Scrib overexpression in hepatocellular carcinoma cells suppresses proliferation by simultaneously regulating MAPK/ERK and Hippo signaling pathways, disrupting a positive feedback loop between Yap1 and c-Myc, and suppressing expression of Yap1, c-Myc, and cyclin D1. |
Scrib overexpression and knockdown in HCC cells, western blot for Yap1/c-Myc/cyclin D1/ERK/Hippo pathway, in vivo mouse liver tumor model |
Oncotarget |
Medium |
28460446
|
| 2019 |
SCRIB associates with the β-catenin destruction complex under proteasome inhibition; the SCRIB/β-catenin interaction is potentiated upon Wnt3a stimulation; SCRIB plays a repressing role on Wnt/β-catenin signaling. |
Proteomic interactome (mass spectrometry), co-immunoprecipitation, Wnt reporter assay, western blot |
Proteomics |
Medium |
31513346
|
| 2019 |
Scrib interacts with Arhgef7 (βPIX) in primary carotid endothelial cells (identified by Co-IP/MS); siRNA knockdown of Scrib or Arhgef7 reduces endothelial barrier function. Scrib KO reduces AKT phosphorylation and endothelium-dependent relaxation while increasing vascular permeability and leukocyte extravasation. Scrib also interacts with the transcription factor GATA-like protein-1 (GLP1) and maintains its protein abundance. |
Co-IP/mass spectrometry, siRNA knockdown, endothelial barrier function assay, conditional endothelial KO mice, western blot (AKT), in vivo atherosclerosis models |
Cardiovascular research |
Medium |
30949676
|
| 2020 |
In Drosophila follicle epithelium, Scrib module proteins have distinct activities: cortical recruitment of Scrib requires an independent cortical stabilizing activity of Dlg (not palmitoylation or polar phospholipid binding). Scrib and Dlg do not directly antagonize aPKC but instead restrict aPKC localization by enabling Lgl's aPKC-inhibiting activity. Lgl is not part of the Scrib-Dlg complex at the lateral domain. |
Drosophila genetics, fluorescence recovery after photobleaching (FRAP), optogenetics, loss-of-function mutants, immunofluorescence |
Proceedings of the National Academy of Sciences of the United States of America |
High |
32414916
|
| 2020 |
Lgl does not form immobile complexes with Scrib-Dlg at the lateral domain of Drosophila follicle cells (shown by FRAP); Dlg and Scrib are required only for Lgl localization and dynamics in the presence of aPKC function. Light-induced oligomerization confirms Lgl is not part of the Scrib-Dlg complex. |
FRAP, optogenetic depletion of plasma membrane PIP2, optogenetic oligomerization of basolateral proteins, genetic mutants |
Development (Cambridge, England) |
High |
32665243
|
| 2021 |
SCRIB's PDZ domains interact with the C-terminal PDZ-binding motif of the sodium/iodide symporter (NIS), retaining NIS at the basolateral plasma membrane; CRISPR/Cas9-based SCRIB knockout causes NIS mislocalization to intracellular vesicular compartments (late endosomes/lysosomes), impairing iodide transport. |
PDZ domain array binding assay, co-immunoprecipitation, CRISPR/Cas9 KO cells, immunofluorescence, iodide transport assay |
FASEB journal |
High |
34196428
|
| 2022 |
SCRIB interacts with SLC3A2 (heteromeric component of leucine amino acid transporter SLC7A5) via the N-terminus of SCRIB, facilitating formation of a SCRIB/SLC3A2/LLGL2/SLC7A5 quaternary complex required for membrane localization of the amino acid transporter; both SCRIB and SLC3A2 are required for cell proliferation and tamoxifen resistance in ER+ breast cancer cells. |
Co-immunoprecipitation, domain mapping, siRNA knockdown, membrane fractionation, proliferation assay, tamoxifen resistance assay |
Communications biology |
Medium |
35501367
|
| 2023 |
SCRIB serves as a molecular scaffold for SHROOM2/4 and ROCK1 through an evolutionary conserved SHROOM-binding site in the SCRIB C-terminus; SCRIB KO gut epithelia show reduced apical cell shape area and impaired basoapical polarization of myosin light chain localization and activity, demonstrating SCRIB controls epithelial apical contractility during differentiation. |
Organ-on-chip model, SCRIB KO, immunofluorescence for myosin light chain, co-immunoprecipitation for SHROOM/ROCK1, domain mutagenesis |
The Journal of cell biology |
High |
37930352
|
| 2023 |
hnRNP A1 promotes SCRIB exon 16 skipping by binding an 'AG'-rich sequence on intron 15 of SCRIB pre-mRNA, generating a truncated SCRIB-S isoform; SCRIB-S has lower affinity for the phosphatase subunit PPP1CA compared to full-length SCRIB-L, and promotes breast cancer metastasis through ERK pathway activation. |
CLIP, RIP, MS2-GFP-based RNA binding assay, affinity pulldown for PPP1CA, siRNA/antisense oligonucleotide manipulation, ERK western blot, metastasis assay |
Acta pharmacologica Sinica |
Medium |
37402999
|
| 2023 |
OTULIN (Met1-Ub deubiquitinase) interacts with SCRIB; Met1-Ub chains associate with VANGL2 and PRICKLE1 (but not SCRIB) and can direct VANGL2 surface presentation, suggesting linear ubiquitination of PCP complex components is regulated in part through SCRIB-associated machinery. |
HEK293 cell interactomic analysis, co-immunoprecipitation, MDCK cell VANGL2-GFP trafficking assay, OTULIN KO mouse neural tube analysis |
Disease models & mechanisms |
Medium |
37589075
|
| 2024 |
Scrib controls reactive oxygen species production in microglia by regulating Scrib-associated NADPH oxidase (p22phox expression); suppression of Scrib reduces ROS and NLRP3 inflammasome activation. |
Scrib siRNA knockdown in primary microglia, ROS measurement, western blot for p22phox and NLRP3 components |
Phytomedicine |
Low |
39522252
|
| 2026 |
Scrib directly interacts with VE-cadherin (identified by proximity ligation mass spectrometry) and organizes cortical actomyosin clusters at endothelial cell-cell junctions; Scrib depletion decreases junctional actomyosin without affecting catenin-dependent VE-cadherin-actin coupling. Myosin-1c is identified as a critical effector linking Scrib cortical dynamics and VE-cadherin to stabilize adherens junctions during angiogenesis. |
VE-cadherin proximity ligation mass spectrometry, 3D angiogenesis-on-chip, siRNA knockdown, actomyosin immunofluorescence, TIRF, co-immunoprecipitation |
The Journal of cell biology |
High |
42043432
|
| 2020 |
FAM83H, SCRIB, and β-catenin form a complex (co-immunoprecipitation); knockdown of either FAM83H or SCRIB accelerates proteasomal degradation of β-catenin, indicating SCRIB participates in stabilizing β-catenin. |
Co-immunoprecipitation, siRNA knockdown, western blot for β-catenin, proteasome inhibitor treatment |
Aging |
Medium |
32564009
|
| 2015 |
Conditional biallelic loss of Scrib in mouse epidermis significantly enhances tumor multiplicity and progression in an autochthonous skin carcinogenesis model; mechanistically, apoptosis is identified as the critical effector of Scrib tumor suppressor activity during skin carcinogenesis. |
Cre-loxP conditional Scrib KO in epidermis, DMBA/TPA skin carcinogenesis model, apoptosis markers (immunofluorescence/western blot) |
Molecular cancer |
Medium |
26376988
|