| 2000 |
Human SCRIB (hScrib) is directly targeted for ubiquitin-mediated degradation by the high-risk HPV E6 oncoprotein in complex with the E6AP ubiquitin-protein ligase; binding is mediated by the PDZ domains of hScrib and a C-terminal PDZ-binding motif on E6. E6 expression also disrupts tight junction integrity (ZO-1 localization), dependent on the PDZ-binding epitope of E6. |
In vitro ubiquitination assay, in vivo degradation assay, Co-IP characterization of E6AP-E6-hScrib complex, GFP-hScrib localization in MDCK cells, ZO-1 immunofluorescence |
Molecular and cellular biology |
High |
11027293
|
| 2003 |
Mammalian Scrb1 (Scrib) functions in the planar cell polarity (PCP) pathway; mutation in Scrb1 causes defects in stereociliary bundle polarization in mouse cochlea, and Scrb1 heterozygosity genetically interacts with Vangl2 heterozygosity to produce additive PCP defects comparable to Vangl2 homozygotes. |
Mouse genetics (ENU mutant), genetic epistasis (double heterozygotes), scanning electron microscopy of hair cell bundle orientation |
Nature |
High |
12724779
|
| 2003 |
Scrib1 is required for initiation of neural tube closure; the circletail mouse harbors a frameshift mutation in Scrb1 (single base insertion causing premature termination), leading to craniorachischisis, and circletail genetically interacts with the loop-tail (Vangl2) mutant. |
Positional cloning, sequencing, genetic interaction (double heterozygote crosses), in situ hybridization for expression pattern |
Human molecular genetics |
High |
12499390
|
| 2003 |
Drosophila Scrib (with Dlg and Lgl) regulates neuroblast asymmetric cell division: Scrib/Dlg/Lgl show apical cortical enrichment at prophase/metaphase, and loss-of-function mutants display defects in basal protein targeting, reduced apical cortical domain, reduced apical spindle size, and symmetric or inverted cell divisions. |
Drosophila genetics (loss-of-function mutants), immunofluorescence, time-lapse imaging of neuroblast divisions |
Nature cell biology |
High |
12545176
|
| 2005 |
The tumor suppressor Scrib interacts with the zyxin-family protein LPP through Scrib's PDZ domains binding the C-terminus of LPP; both proteins co-localize at cell-cell contacts. All four PDZ domains of Scrib are dispensable for its localization to cell-cell contacts. |
Co-IP, pulldown assay, immunofluorescence co-localization in MDCKII and CV-1 cells |
BMC cell biology |
Medium |
15649318
|
| 2005 |
Scrib also interacts with TRIP6 (but not zyxin, ajuba, or LIMD1) among zyxin-family proteins; TRIP6 directly binds the third PDZ domain of Scrib via its C-terminus. Both proteins localize at cell-cell contacts but are not required to target each other to these structures. |
PDZ domain binding assays, pulldown, immunofluorescence |
FEBS letters |
Medium |
16137684
|
| 2006 |
Mammalian Scrib controls Cdc42 localization and activation during astrocyte polarized migration by interacting with and recruiting βPIX (a GEF for Rac/Cdc42) to the leading edge; perturbation of Scrib localization or Scrib-βPIX interaction inhibits βPIX polarized recruitment and Cdc42 activation, thereby blocking APC and Dlg1 recruitment to the leading edge. |
siRNA knockdown, dominant-negative constructs, Co-IP, immunofluorescence, Cdc42 activity assay (GLISA/pull-down), scratch-induced polarization assay in astrocytes |
Current biology : CB |
High |
17081755
|
| 2008 |
Scrib is part of a protein complex containing βPIX and GIT1 that associates with PAK kinase; the Scrib complex is required for cortical PAK localization and activation by Rac at the leading edge, and for polarized Rac activation during cell migration. Loss of Scrib reduces cortical PAK and impairs chemoattractant-induced directed migration of epithelial cells and MEFs. |
siRNA knockdown in T47D and primary MEFs, Co-IP, immunofluorescence, PAK and Rac activity assays, chemotaxis assay |
Human molecular genetics |
High |
18716323
|
| 2009 |
Scrib interacts with MCC (Mutated in Colorectal Cancer) in a PDZ-dependent manner; MCC also interacts with NHERF1/NHERF2/Ezrin. Reduced MCC expression impairs directed cell migration independently of Rac1, Cdc42, and PAK activation, identifying MCC as a scaffold linking Scrib to cell movement. |
Co-IP, siRNA knockdown, cell migration assay, immunofluorescence |
FEBS letters |
Medium |
19555689
|
| 2011 |
Scrib negatively regulates the MAPK cascade to suppress prostate tumorigenesis; Scrib heterozygosity initiates prostate hyperplasia and biallelic loss leads to prostate intraepithelial neoplasia in mice. Loss of Scrib combined with oncogenic Kras promotes prostate cancer progression. |
Conditional knockout mouse model (Cre-lox), tumor histopathology, MAPK signaling assays, genetic epistasis with KrasG12D |
The Journal of clinical investigation |
High |
21965329
|
| 2011 |
SCRIB missense variants found in human craniorachischisis patients cause loss of protein trafficking to the plasma membrane, while not affecting protein-protein interactions, implicating defective membrane localization as a pathogenic mechanism for SCRIB in neural tube defects. |
Sequencing, subcellular localization assay (transfection + immunofluorescence), protein-protein interaction assays |
Human mutation |
Medium |
22095531
|
| 2011 |
SCRIB forms at least two distinct protein complexes in breast cancer cells: (1) SCRIB-ARHGEF7(βPIX)-GIT-PAK, and (2) SCRIB-NOS1AP-VANGL1. The SCRIB-NOS1AP complex colocalizes at cellular protrusions in metastatic breast cancer cells; knockdown of either NOS1AP or SCRIB reduces directed migration and prevents leading-trailing polarity establishment. |
Mass spectrometry, confocal microscopy, shRNA knockdown, migration assay, xenograft assay |
Oncogene |
Medium |
22179838
|
| 2012 |
Scrib targets βPIX and PAK2 to adherens junctions where a βPIX-PAK2 complex counterbalances apoptotic stimuli transduced by Scrib itself and elicited by cadherin-mediated adhesion; the Scrib-βPIX-PAK2 complex also regulates anoikis and osmotic stress-induced apoptosis in polarized epithelia. |
Co-IP, shRNA knockdown, apoptosis assays, cell survival assays, osmotic stress assay, suspension culture anoikis assay |
Current biology : CB |
Medium |
22863318
|
| 2012 |
Scrib associates with the co-chaperone Sgt1 through its leucine-rich repeat (LRR) domain; this interaction, together with HSP90, is required for Scrib protein stability. Sgt1-HSP90-mediated stabilization of Scrib is necessary for maintaining levels of the Scrib-βPix-PAK complex and for HGF-induced epithelial morphogenesis and tubulogenesis in 3D culture. |
Co-IP, domain mapping (LRR pulldown), HSP90 inhibitor treatment, siRNA knockdown, 3D Matrigel morphogenesis assay |
Journal of cell science |
Medium |
22623728
|
| 2013 |
SCRIB forms a complex with MRAS and SHOC2; SCRIB functions as a PP1-regulatory protein within this complex and antagonizes SHOC2-mediated RAF dephosphorylation by competing for PP1 molecules in the same macromolecular complex, thereby negatively modulating ERK-MAPK pathway activation. |
Co-IP, MS, in vitro phosphatase assay, RAF dephosphorylation assay, dominant-negative constructs, tumor cell functional assays |
Molecular cell |
High |
24211266
|
| 2013 |
Scrib interacts with integrin α5 (identified by Co-IP/MS and GST pulldown) and colocalizes with it at the basal plasma membrane of endothelial cells. Scrib supports integrin α5 recycling and protein stability by blocking its interaction with Rab7a, preventing lysosomal translocation and degradation; PDZ and LRR domains of Scrib are both required for this function. Loss of Scrib impairs directed but not random migration and delays intersegmental vessel angiogenesis in zebrafish. |
Co-IP/MS, GST pulldown, TIRF microscopy, siRNA knockdown, Western blot, FACS, zebrafish morpholino knockdown, domain-rescue experiments |
Circulation research |
High |
23362312
|
| 2013 |
Loss of Scrib in mouse lens and corneal epithelium leads to EMT: E-cadherin and ZO-1 are downregulated, αSMA is upregulated, and Smad3/Smad4 accumulate in the nucleus with upregulation of Snail, indicating TGFβ signaling as a mediator of Scrib-loss-induced EMT. |
Conditional Scrib knockout (Cre-lox in head ectoderm), immunofluorescence, Western blot |
Developmental biology |
Medium |
24095903
|
| 2013 |
Lpp interacts with the PCP protein Scrib in zebrafish and cooperates with Scrib for convergence and extension movements during gastrulation; knockdown of scrib causes defects in C&E movements phenocopying noncanonical Wnt signaling mutants. |
Morpholino knockdown in zebrafish, time-lapse analysis, Co-IP in zebrafish |
Developmental biology |
Medium |
18582857
|
| 2014 |
Scrib interacts physically with Rac1 (but not with Vangl2) in embryonic cardiomyocytes; conditional deletion of Scrib in cardiac precursors (Nkx2.5-Cre) disrupts ventricular trabecular cytoarchitecture and causes septal defects. Genetic interaction between Scrib and Rac1 produces ventricular abnormalities, identifying a Scrib-Rac1 pathway in myocardial development. |
Co-IP, conditional KO mouse, histopathology, genetic epistasis (Scrib/Rac1 double mutant) |
Cardiovascular research |
Medium |
25139745
|
| 2015 |
Scrib is asymmetrically distributed in dividing satellite (muscle stem) cells, with high Scrib in committed daughters and low Scrib in proliferating/self-renewing cells; satellite-cell-specific Scrib KO in mice causes a severe defect in muscle regeneration, demonstrating Scrib controls muscle stem cell fate and population dynamics. |
Conditional KO mouse (satellite-cell-specific Cre), immunofluorescence for asymmetric distribution, muscle injury/regeneration assay |
Cell reports |
High |
25704816
|
| 2015 |
In skin carcinogenesis, apoptosis is identified as a critical effector of Scrib's tumor suppressor activity; conditional epidermal Scrib loss significantly enhances tumor multiplicity and progression in an autochthonous carcinogenesis model, and Scrib is also required for epidermal permeability barrier formation during embryogenesis. |
Conditional KO mouse (epidermis-specific Cre-lox), autochthonous skin carcinogenesis model, apoptosis assays, permeability assays |
Molecular cancer |
Medium |
26376988
|
| 2016 |
Sema4A functions as a receptor in reverse signaling: Plexin-B1 binding to Sema4A promotes interaction of Sema4A with Scrib, thereby displacing Scrib from its βPIX complex and decreasing Rac1 and Cdc42 activity, which regulates cancer cell and dendritic cell migration. |
MS interactome screen, siRNA screening, Co-IP, Rac1/Cdc42 activity assays, cell migration assay |
The Journal of cell biology |
Medium |
28007914
|
| 2017 |
Scrib simultaneously regulates MAPK/ERK and Hippo (Yap1) signaling pathways to suppress hepatocellular carcinoma; Scrib overexpression disrupts a positive feedback loop between Yap1 and c-Myc, reducing cyclin D1 expression. Scrib deficiency enhances liver tumor growth in vivo. |
Overexpression and KD in HCC cells, in vivo liver tumor model, Western blot for pathway components |
Oncotarget |
Medium |
28460446
|
| 2019 |
SCRIB associates with the β-catenin destruction complex (identified by proteomic approach under proteasome inhibition); SCRIB/β-catenin interaction is potentiated upon Wnt3a stimulation and SCRIB plays a repressive role on Wnt/β-catenin signaling. |
Proteomics/MS, Co-IP, Wnt3a stimulation, transcriptional reporter assay |
Proteomics |
Medium |
31513346
|
| 2019 |
Scrib interacts with Arhgef7 (βPix) in primary carotid endothelial cells (identified by Co-IP/MS); loss of Scrib reduces endothelial barrier function, impairs AKT phosphorylation and endothelium-dependent relaxation, and increases vascular permeability and leukocyte extravasation. Scrib also maintains expression of GATA-like protein-1 at the protein level to support VCAM-1-dependent inflammatory signaling. |
Conditional endothelial KO mouse, Co-IP/MS, Co-IP for GATA-like protein-1, atherosclerosis model, vascular permeability assay, siRNA |
Cardiovascular research |
Medium |
30949676
|
| 2020 |
In Drosophila follicle epithelium, Scrib cortical recruitment requires an independent cortically stabilizing activity of Dlg rather than palmitoylation or polar phospholipid binding. Scrib and Dlg do not directly antagonize aPKC but restrict aPKC localization by enabling Lgl's aPKC-inhibiting activity. Lgl is not part of the Scrib-Dlg complex and they act in parallel. |
Drosophila genetics (loss-of-function mutants, rescue constructs), FRAP, optogenetic PIP2 depletion, light-induced oligomerization of basolateral proteins |
Proceedings of the National Academy of Sciences of the United States of America |
High |
32414916
|
| 2020 |
FAM83H, SCRIB, and β-catenin form a protein complex (identified by Co-IP); knockdown of either FAM83H or SCRIB accelerates proteasomal degradation of β-catenin, indicating that the complex stabilizes β-catenin in gastric cancer cells. |
Co-IP, siRNA knockdown, proteasome inhibition, Western blot |
Aging |
Medium |
32564009
|
| 2021 |
SCRIB regulates expression of sodium/iodide symporter (NIS) at the basolateral plasma membrane through a PDZ-PDZ interaction; SCRIB PDZ domains bind the C-terminal PDZ-binding motif of NIS. In CRISPR/Cas9 SCRIB-deficient cells, NIS is mislocalized to intracellular vesicular compartments, reducing iodide transport. |
PDZ domain array, Co-IP, CRISPR/Cas9 KO, immunofluorescence, iodide uptake assay |
FASEB journal |
High |
34196428
|
| 2022 |
SCRIB interacts with SLC3A2 via its N-terminus to form a SCRIB/SLC3A2/LLGL2/SLC7A5 quaternary complex required for membrane localization of the leucine amino acid transporter. Both SCRIB and SLC3A2 are required for cell proliferation and tamoxifen resistance in ER+ breast cancer cells; SCRIB expression is induced by estrogen in a MYC-dependent manner. |
Co-IP, domain mapping, siRNA knockdown, proliferation assay, tamoxifen resistance assay |
Communications biology |
Medium |
35501367
|
| 2023 |
SCRIB controls apical cell shape and basoapical polarization of myosin light chain localization and activity during gut epithelial differentiation. SCRIB serves as a molecular scaffold for SHROOM2/4 and ROCK1 through an evolutionarily conserved SHROOM-binding site in the SCRIB C-terminal domain, which is required for controlling apical contractility. |
SCRIB KO (organ-on-chip gut model), domain mapping of SHROOM binding site, immunofluorescence for myosin localization, Co-IP |
The Journal of cell biology |
High |
37930352
|
| 2023 |
A truncated SCRIB isoform (SCRIB-S, lacking exon 16) promotes breast cancer metastasis via ERK pathway activation; SCRIB-S has lower affinity for the phosphatase PPP1CA compared to full-length SCRIB-L. hnRNP A1 promotes exon 16 skipping by binding an 'AG'-rich sequence on intron 15 of SCRIB pre-mRNA. |
CLIP, RIP, MS2-GFP-based splicing assay, Co-IP for PPP1CA, ERK activity assay, antisense oligonucleotide (ASO) rescue, metastasis assay |
Acta pharmacologica Sinica |
Medium |
37402999
|
| 2023 |
OTULIN (a linear ubiquitin deubiquitinase) interacts with SCRIB in HEK293 cells; linear (Met1-linked) ubiquitin chains associate with VANGL2 and PRICKLE1 (but not SCRIB) and direct VANGL2 surface presentation. OTULIN loss impairs VANGL2 trafficking and Wnt5a-induced filopodia extension. |
HEK293 interactomic analysis (BioID/MS), Co-IP, immunofluorescence, filopodia assay, VANGL2-GFP trafficking assay |
Disease models & mechanisms |
Medium |
37589075
|
| 2026 |
Scrib controls the formation of cortical actomyosin clusters to maintain adherens junction stability and angiogenic sprouting; Scrib-depleted microvessels show adherens junction instability and decreased junctional cortex actomyosin. Myosin-1c is identified as a critical effector linking Scrib cortical dynamics to VE-cadherin stabilization, through a mechanism independent of catenin-dependent actin coupling. |
VE-cadherin proximity ligation mass spectrometry, 3D angiogenesis-on-chip, siRNA KD, live imaging, immunofluorescence |
The Journal of cell biology |
Medium |
42043432
|