| 1994 |
Sox5 protein localizes to the nucleus of post-meiotic round spermatids in mouse testis and binds specifically to the sequence AACAAT with moderately high affinity (Kd ~10^-9 M), inducing a significant bend in the DNA characteristic of HMG box proteins. |
Indirect immunofluorescence, in vitro footprinting, gel retardation assays, circular dichroism spectroscopy, 2D NMR |
Nucleic acids research |
High |
8078768
|
| 1998 |
L-Sox5 (long form of Sox5) contains a coiled-coil domain that mediates homodimerization and heterodimerization with Sox6; dimerization greatly increases efficiency of binding to DNA containing adjacent HMG sites. L-Sox5, Sox6, and Sox9 cooperatively activate Col2a1 expression through a 48 bp chondrocyte-specific enhancer containing HMG-like sites. |
Coiled-coil domain analysis, dimerization assays, DNA binding assays, reporter assays in 10T1/2 and MC615 cells, co-expression studies in mouse embryos |
The EMBO journal |
High |
9755172
|
| 1998 |
The Sox5 HMG box from mouse undergoes two-stage reversible unfolding corresponding to two structural sub-domains (minor wing: helix 3 + N-terminal strand; major wing: helices I and II), with the minor wing considerably unfolded at physiological temperature (37°C). |
Differential scanning calorimetry, fluorescence spectroscopy, NMR |
Journal of molecular biology |
High |
9710541
|
| 1999 |
The Sox5 HMG box binds its AACAAT target DNA with an association constant of ~4×10^7 M^-1 (ΔG = −40 to −48 kJ/mol), with binding thermodynamics characteristic of minor groove HMG box proteins including a large negative heat capacity change (~−2 kJ/K/mol) reflecting dehydration of the protein-DNA interface. |
Fluorescence titration, isothermal titration calorimetry (ITC), differential scanning calorimetry (DSC) |
Journal of molecular biology |
High |
10588902
|
| 2001 |
Sox5 (L-Sox5) and Sox6 are required for formation of cartilage in mouse embryos; double-null mutants (Sox5−/−/Sox6−/−) show severe skeletal malformations with failure of chondroblast differentiation, establishing Sox5 and Sox6 as redundant transcriptional regulators of chondrogenesis. |
Genetic knockout mouse models, in vivo skeletal analysis |
Osteoarthritis and cartilage |
High |
11680692
|
| 2001 |
NMR solution structure of the mouse Sox5 HMG box in free solution reveals a characteristic twisted L-shape with two wings (major wing: helices 1 and 2; minor wing: helix 3 with N-terminal segment), with significant backbone mobility in the minor wing that increases toward termini. |
Multidimensional NMR with 15N-labeled protein, 15N relaxation measurements |
Protein science |
High |
11266597
|
| 2002 |
Sox9 is required upstream of Sox5 and Sox6 in chondrogenesis; conditional inactivation of Sox9 before mesenchymal condensations abolishes Sox5 and Sox6 expression, placing Sox9 upstream of Sox5/Sox6 in the chondrogenic transcriptional hierarchy. |
Cre/loxP conditional knockout in mouse embryos, in situ hybridization for Sox5/Sox6 expression |
Genes & development |
High |
12414734
|
| 2003 |
Sox5 and Sox6 are required in the notochord for formation of the extracellular matrix sheath, notochord cell survival, and development of the nucleus pulposus; Sox5−/−/Sox6−/− mice lack notochord ECM sheath and downregulate Col2a1, aggrecan, and perlecan in notochord cells. |
Genetic double-knockout mouse model, in situ hybridization, immunohistochemistry, apoptosis assays |
Development (Cambridge, England) |
High |
12571105
|
| 2004 |
The combination of SOX5, SOX6, and SOX9 (the SOX trio) is sufficient to induce chondrocyte differentiation in non-chondrogenic cell types including dermal fibroblasts, suppressing hypertrophic and osteogenic differentiation simultaneously. |
Embryonic stem cell reporter assay, primary mesenchymal stem cell differentiation, marker gene expression, proteoglycan matrix accumulation |
Arthritis and rheumatism |
High |
15529345
|
| 2007 |
Sox5 and Sox6, together with Sox9 and coactivators CBP/p300, activate transcription of the COMP (cartilage oligomeric matrix protein) gene; Sox9 binds directly to a 13-nucleotide element in the COMP promoter PRE, and Sox5/Sox6 cooperate with Sox9 and CBP/p300 for full activation. |
Reporter assays, gel shift assays, siRNA knockdown, EMSA |
Frontiers in bioscience |
Medium |
17485346
|
| 2008 |
L-Sox5 and Sox6 drive aggrecan (Agc1) gene expression by binding to three elements in a far-upstream enhancer, which cooperatively increases the efficiency of Sox9 binding to its own recognition site within the same enhancer, thereby potentiating Sox9-driven transcription. |
Transgenic mouse reporter assays, ChIP, EMSA, mutational analysis of enhancer elements |
Molecular and cellular biology |
High |
18559420
|
| 2008 |
The coactivator Tip60 physically associates with Sox9 and Sox5 (identified by yeast two-hybrid and confirmed by co-IP), and the Sox9-Tip60-DNA complex assembles on the Col2a1 enhancer; Tip60 enhances Sox9 transcriptional activity and acetylates Sox9 at K61, K253, and K398 residues. |
Yeast two-hybrid, Co-IP, gel shift assay, reporter assay, ChIP, subnuclear colocalization, siRNA knockdown in micromass cultures |
Nucleic acids research |
High |
18390577
|
| 2008 |
Sox5 modulates Sox10 activity in the melanocyte lineage by binding to regulatory regions of melanocytic Sox10 target genes and recruiting corepressors CtBP2 and HDAC1, directly inhibiting Sox10-dependent promoter activation; Sox5 loss partially rescues the melanoblast reduction in Sox10 heterozygous mice. |
Genetic mouse models (Sox5 KO, Sox10 het crosses), ChIP showing Sox5 recruitment of CtBP2 and HDAC1, reporter assays |
Nucleic acids research |
High |
18703590
|
| 2010 |
S-SOX5 (48-kDa short isoform) directly binds to and activates the SPAG6 (sperm-associated antigen 6) promoter via SOX5 binding sites, cooperating with FOXJ1 to stimulate SPAG6 expression; mutation of SOX5 binding sites abrogates promoter activation. |
Luciferase reporter assay with SOX5 binding site mutations, ChIP, EMSA, siRNA knockdown, SOX5 overexpression |
The Journal of biological chemistry |
High |
20668334
|
| 2010 |
SOX5 overexpression in chick neural progenitors causes premature cell cycle exit, while SOX5 knockdown extends the proliferative period and causes cell death in a dorsal interneuron population; SOX5 reduces WNT-beta-catenin signaling by triggering expression of the negative regulator Axin2. |
In ovo overexpression and knockdown, cell cycle analysis, reporter assay for WNT pathway activity |
EMBO reports |
Medium |
20448664
|
| 2010 |
Sox5 and Sox6 are required for proper synovial joint morphogenesis; complete Sox5/Sox6 double KO prevents joint interzone formation and cavitation, while chondrocyte-specific inactivation (Col2Cre) also blocks joint morphogenesis, establishing that Sox5/Sox6 chondrogenic function is essential for joint development. |
Complete and cell-type-specific conditional knockout using Cre/loxP (Sox5fl/fl6fl/fl with Col2Cre and Gdf5Cre drivers), histology, marker gene expression |
Developmental biology |
High |
20206616
|
| 2010 |
L-Sox5/Sox6 and Nfib proteins bind to conserved proximal elements in the Matn1 (matrilin-1) promoter and modulate Sox9 transactivation in a protein dose-dependent manner to restrict expression to specific growth plate zones. |
Transgenic mouse reporter assays, EMSA, mutational analysis, protein binding assays |
Molecular and cellular biology |
Medium |
21173167
|
| 2011 |
SOX5 and SOX6 physically interact with SHOX (short stature homeobox gene) via the SHOX homeodomain and SOX6 HMG domain (confirmed by yeast two-hybrid and co-immunoprecipitation in human cells), and this interaction is required for cooperative activation of the aggrecan (Agc1) upstream enhancer; LWD-causing SHOX missense mutations disrupt this interaction. |
Yeast two-hybrid screen, Co-IP in human cells, immunohistochemistry in human fetal growth plates, reporter assays, domain mapping |
Human molecular genetics |
High |
21262861
|
| 2011 |
Sox5 knockout mice exhibit abnormal lung development with a delay in maturation before the saccular stage (as early as E16.5) associated with decreased fibronectin expression, an ECM component critical for branching morphogenesis. |
Sox5−/− mouse histology and gene expression analysis |
American journal of respiratory and critical care medicine |
Medium |
21330457
|
| 2012 |
L-Sox5 and Sox6 enhance Sox9 homodimer-driven transcription of miR-140 by binding to an L-Sox5/Sox6/Sox9 response element in the pri-miR-140 proximal promoter, boosting Sox9's DNA-binding and/or transactivation ability as a homodimer. |
Reporter assays in vivo and in vitro, ChIP, DNA binding analysis with genetically modified mice |
The Journal of biological chemistry |
Medium |
22547066
|
| 2014 |
Sox5 (novel Th17-specific isoform Sox5t) physically associates with c-Maf via the HMG domain of Sox5 and the DNA-binding domain of c-Maf; Sox5 and c-Maf cooperatively and directly activate the RORγt promoter in CD4+ T cells, acting as downstream targets of Stat3 and upstream inducers of RORγt to drive Th17 differentiation. |
Co-immunoprecipitation (domain mapping), ChIP on RORγt promoter, retroviral overexpression in Stat3-deficient and RORγt-deficient cells, T cell-specific Sox5 KO mice with EAE model |
The Journal of experimental medicine |
High |
25073789
|
| 2014 |
Sox5 directly transactivates Twist1 expression in breast cancer cells by binding to the Twist1 promoter (shown by ChIP); Sox5 depletion downregulates Twist1, reduces EMT markers (N-cadherin, Vimentin, Fibronectin 1), and upregulates E-cadherin. |
ChIP assay, luciferase reporter, siRNA knockdown, Western blot |
Biochemical and biophysical research communications |
Medium |
24607904
|
| 2014 |
Sox5 functions as a DNA-binding cofactor for BMP R-Smads (Smad1/4) in Xenopus ectoderm; Sox5 physically interacts with BMP R-Smads and is essential for recruitment of Smad1/4 to BMP regulatory elements, thereby activating BMP target genes required for neural crest and epidermal patterning. |
Xenopus embryo overexpression/knockdown, Co-IP of Sox5 with BMP R-Smads, ChIP showing Smad1/4 recruitment to BMP regulatory elements, target gene expression analysis |
Developmental cell |
High |
25453832
|
| 2015 |
SOX9 and SOX5/SOX6 bind thousands of genomic sites genome-wide in chondrocytes, frequently co-occupying super-enhancers (SEs); SOX9 recognizes pairs of inverted SOX motifs while SOX6 favors pairs of tandem SOX motifs; together they co-activate nearly all cartilage-specific SEs to drive the chondrocyte differentiation program. |
Genome-wide ChIP-seq for SOX6 and SOX9 in RCS cells, motif analysis, SE analysis, in vivo validation of target gene expression |
Nucleic acids research |
High |
26150426
|
| 2015 |
Sox5 and Sox6 transcription factors directly promote oligodendrocyte progenitor migration by activating PDGFRα expression, thereby maintaining responsiveness to PDGF-A as a migratory cue; they also cooperate with Sox9 and Sox10 to activate PDGFRα expression, in contrast to their antagonism of SoxE proteins on myelin genes. |
CNS-specific conditional Sox5/Sox6 double KO mice, migration assays, marker gene expression, functional rescue |
Glia |
Medium |
26345464
|
| 2016 |
SOX5 directly binds and activates the RANKL promoter in IL-6-stimulated rheumatoid synovial fibroblasts; ChIP shows ~3-fold enrichment of RANKL-specific DNA in anti-SOX5 immunoprecipitate after IL-6 treatment; knockdown of SOX5 reduces IL-6-mediated RANKL upregulation and bone erosion in CIA mice. |
ChIP, overexpression/knockdown studies, in vivo CIA mouse model with local SOX5 silencing, immunohistochemistry |
Scientific reports |
Medium |
27550416
|
| 2017 |
Sox5 promotes EMT and prostate cancer metastasis as a master regulator of TGF-β-induced EMT; Smad3 binds to the Sox5 promoter and regulates its expression, and Sox5 in turn binds to the Twist1 promoter to activate Twist1, which initiates EMT. |
ChIP, luciferase reporter assay, siRNA knockdown, xenograft mouse model, Western blot |
British journal of cancer |
Medium |
29123266
|
| 2017 |
SOX5 promotes migration and invasion of fibroblast-like synoviocytes in rheumatoid arthritis by directly binding to and activating the MMP-9 promoter; ChIP confirms SOX5 binding to MMP-9 promoter and deletion of the SOX5 binding site abolishes promoter-driven transcription; SOX5 knockdown reduces MMP-9 expression and pannus invasion in CIA mice. |
ChIP, luciferase reporter with SOX5 binding site deletion, transwell assay, in vivo CIA mouse model |
Frontiers in immunology |
High |
29706965
|
| 2017 |
Sox5 regulates beta-cell phenotype and insulin secretion; Sox5 knockdown reduces depolarization-evoked Ca2+-influx and β-cell exocytosis, while SOX5 overexpression reverses expression perturbations in a T2D mouse model and improves glucose-stimulated insulin secretion in human islets. |
Sox5 knockdown/overexpression in pancreatic islets, Ca2+ imaging, patch-clamp exocytosis measurements, gene expression profiling |
Nature communications |
High |
28585545
|
| 2017 |
Sox5 can suppress PDGFB-induced glioma development in Ink4a-deficient cells by increasing p27(Kip1) levels and inducing cellular senescence; Sox5 overexpression reduces Akt activation and increases p27(Kip1), and inhibition of p27(Kip1) reverses Sox5-mediated effects on proliferation and senescence. |
Retroviral overexpression of Sox5 in primary brain cell cultures, glioma mouse model, Western blot for Akt and p27(Kip1), p27 inhibition rescue experiments |
Oncogene |
Medium |
19219070
|
| 2017 |
SOX5, SOX6, and SOX21 prevent oncogene-driven transformation of brain stem cells; elevated SOX5/6/21 promotes cell cycle exit upon oncogenic stress and prevents glioma-like tumor formation; restoring SOX5/6/21 in glioblastoma cells enables CDK inhibitor expression, decreases p53 protein turnover, and triggers cellular senescence and apoptosis. |
Genetic ablation (Sox5/6/21 triple KO), in vivo mouse brain tumor model, overexpression in human glioblastoma cells, cell cycle analysis |
Cancer research |
Medium |
28687615
|
| 2018 |
SOX5 promotes breast cancer proliferation and invasion by directly binding to and transactivating the EZH2 promoter; ChIP-seq and quantitative ChIP confirm SOX5 binding, and the biological effect of SOX5 is dependent on EZH2 expression. |
ChIP-seq, quantitative ChIP, luciferase reporter assay, gain/loss-of-function studies with MTT, colony formation, invasion assays |
Oncology letters |
Medium |
30854049
|
| 2018 |
SOX5 interacts with YAP1 as a protein complex in NSCLC cells to drive malignant potential; SOX5 is preferentially expressed by cancer stem-like cells, and silencing YAP1 attenuates malignant processes consistent with SOX5 loss; SOX5 overexpression reverses YAP1 knockdown-mediated effects. |
Co-immunoprecipitation, gain/loss-of-function studies, xenograft model |
American journal of cancer research |
Medium |
29888108
|
| 2019 |
SOX5 directly activates the GLUT4 promoter and is regulated by the VEGFR2/AKT1/GSK3β signaling pathway in ovarian cancer cells; SOX5 overexpression rescues GLUT4 expression and glycolysis suppressed by apatinib. |
Dual-luciferase reporter assay for GLUT4 promoter, RNA-seq, Western blot, xenograft model |
Cellular oncology |
Medium |
31325096
|
| 2019 |
FOX-A1 directly binds to the SOX5 promoter and transactivates SOX5 expression in lung adenocarcinoma, as demonstrated by ChIP-seq and ChIP assays; SOX5 is a downstream target of FOX-A1 driving EMT and chemoresistance. |
ChIP-seq, ChIP assay, qRT-PCR, Western blot, knockdown studies |
EBioMedicine |
Medium |
31147293
|
| 2019 |
SOX5 induces angiogenesis in lung adenocarcinoma by activating STAT3 phosphorylation and increasing VEGF expression; SOX5 overexpression promotes tube formation capacity of endothelial cells, and this is dependent on STAT3/VEGF signaling. |
Tube formation assay, lentiviral overexpression/knockdown, qRT-PCR, Western blot, tissue microarray |
OncoTargets and therapy |
Low |
30254466
|
| 2020 |
Brachyury directly binds to two motifs in the SOX5 promoter (one canonical and one novel Bry-binding motif) and activates SOX5 transcription; SOX5 is a direct downstream target of Brachyury and mediates Brachyury-driven EMT and breast cancer bone metastasis. |
ChIP assay, luciferase reporter assay with binding motif identification, in vitro and in vivo metastasis assays |
Carcinogenesis |
Medium |
31713604
|
| 2020 |
SOX5 transcriptionally activates VEGF expression to promote neuroprotection; SOX5 overexpression rescues LPS-induced apoptosis in PC-12 cells via VEGF-dependent PI3K/AKT pathway activation, as confirmed by ChIP-PCR and dual luciferase reporter assay. |
ChIP-PCR, dual luciferase reporter assay, Western blot, TUNEL assay, CCK-8 assay |
Gene |
Low |
32949698
|
| 2021 |
SOX5 activates a novel RORγt enhancer (RORCE2) in Th17 cells by binding to its SOX5 binding site, which enables RORCE2 looping to the RORγt promoter and recruitment of STAT3 to the RORγt locus; RORCE2 deficiency suppresses RORγt expression and Th17 differentiation. |
CRISPR knockout of RORCE2, chromatin conformation capture (3C/looping assay), ChIP showing SOX5 and STAT3 binding, Th17 differentiation assays, EAE mouse model |
Nature communications |
High |
33473108
|
| 2021 |
TNF-α upregulates SOX5 expression in human bone marrow mesenchymal stem cells, and SOX5 inhibits osteogenic differentiation through the KLF4 signaling pathway; SOX5 overexpression increases KLF4 expression, and KLF4 knockdown abrogates the inhibitory effect of SOX5 on osteogenesis. |
Overexpression/knockdown (RNA interference), ALP activity assay, RT-qPCR, Western blot, epistasis by KLF4 knockdown rescue |
Molecules and cells |
Medium |
29890823
|
| 2023 |
SOX5 overexpression acts as a driver of cellular rejuvenation by binding to and elevating enhancer activity (H3K27ac and H3K4me1) of HMGB2, increasing HMGB2 expression; SOX5 gene therapy rejuvenates cartilage and alleviates osteoarthritis in aged mice. |
Genome-wide CRISPRa screening, epigenomic profiling (H3K27ac, H3K4me1 ChIP), SOX5 binding analysis, lentiviral gene therapy in aged mice |
Cell stem cell |
High |
37832549
|