| 2006 |
SNX5 and SNX6 are required for retromer-mediated endosome-to-trans-Golgi-network retrieval of the cation-independent mannose-6-phosphate receptor (CI-MPR); RNAi knockdown of SNX5 or SNX6 induced a phenotype similar to suppression of known retromer components. SNX5 co-localizes with SNX1 on early endosomes, but unlike SNX6, SNX5 did not appear to form a complex with SNX1 by immunoprecipitation. Suppression of SNX5 and/or SNX6 resulted in significant post-translational loss of SNX1. |
RNAi loss-of-function screen, immunoprecipitation, co-localization imaging |
Journal of cell science |
High |
17148574
|
| 1999 |
SNX5 binds to the Fanconi anemia complementation group A (FANCA) protein; the interaction was identified by yeast two-hybrid and confirmed by immunoprecipitation. The PX domain of SNX5 is not required for this binding. Overexpression of SNX5 increased FANCA protein levels. |
Yeast two-hybrid screen, immunoprecipitation, deletion mutant analysis |
Biochemical and biophysical research communications |
Medium |
10600472
|
| 2008 |
SNX5 promotes macropinocytosis; it is recruited to newly-formed macropinosomes and to EGF receptor-positive plasma membrane regions. Stable overexpression of GFP-SNX5 in HEK cells approximately doubled constitutive and EGF-stimulated macropinosome formation. SNX5 PX domain binds specifically PtdIns(3)P and PtdIns(3,4)P2, and inhibition of EGF receptor tyrosine kinase (AG1478) prevented SNX5 recruitment to the plasma membrane. |
Live-cell imaging, stable GFP-SNX5 expression, phosphoinositide-binding assays, EGF receptor inhibitor treatment, macropinosome quantification |
BMC cell biology |
Medium |
18854019
|
| 2012 |
SNX5 is essential for macropinosome biogenesis in primary macrophages and for antigen uptake/processing. Depletion of SNX5 in bone marrow-derived macrophages dramatically reduced macropinosome number and size and reduced uptake and processing of soluble ovalbumin. SNX1 knockout had no effect on SNX5 localization or macropinosome biogenesis, demonstrating SNX5 can function independently of SNX1. |
siRNA knockdown in primary macrophages, SNX1 knockout mice, fluorescence microscopy, ovalbumin uptake assay |
Biology open |
High |
23213485
|
| 2008 |
The DHR1 domain of DOCK180 interacts with SNX5 (and SNX1, 2, 6); SNX5 was the most efficiently co-immunoprecipitated among these. DOCK180 co-localizes with SNX5 at endosomes. RNAi knockdown of SNX5 or DOCK180 (but not Rac1) caused redistribution of CI-MPR from TGN to endosomes. Expression of the DHR1 domain alone was sufficient to restore CI-MPR distribution in DOCK180 knockdown cells, indicating DOCK180 regulates CI-MPR trafficking via SNX5 independently of its GEF activity. |
LC-MS/MS pulldown, co-immunoprecipitation, co-localization imaging, RNAi knockdown, CI-MPR trafficking assay, domain rescue experiment |
Molecular biology of the cell |
High |
18596235
|
| 2006 |
Zebrafish Snx5 is a binding partner of the E3 ubiquitin ligase Mind bomb (Mib); Snx5 co-localizes with Mind bomb in early endosomal compartments. Morpholino knockdown of snx5 caused defects in hematopoiesis and blood vessel development in zebrafish embryos. |
Yeast two-hybrid, co-localization imaging, morpholino knockdown in zebrafish |
FEBS letters |
Medium |
16857196
|
| 2015 |
In zebrafish retinal development, SNX5 co-localizes with Mind bomb and Delta complexes and directly binds Mib. SNX5 functions downstream of miR-216a to regulate Notch signaling: knockdown of snx5 decreased Notch activation, whereas overexpression of snx5 increased it, placing SNX5 as a positive component of the Notch pathway through promoting endocytosis of Delta. |
co-localization, direct binding (co-IP), morpholino knockdown, snx5 overexpression, Notch signaling reporters in zebrafish |
Developmental biology |
Medium |
25645681
|
| 2017 |
Renal SNX5 co-localizes and co-immunoprecipitates with insulin-degrading enzyme (IDE) at the plasma membrane and perinuclear area of human renal proximal tubule cells; insulin stimulation increases their co-localization and co-immunoprecipitation. Silencing SNX5 in cultured cells and in mouse kidney decreased IDE expression and activity, leading to insulin resistance and elevated blood glucose and insulin in vivo. |
Co-immunoprecipitation, co-localization, siRNA silencing in cells, renal-selective siRNA delivery via osmotic mini-pump in mice, IDE activity assay, metabolic phenotyping |
Diabetologia |
High |
29080975
|
| 2019 |
SNX5 negatively regulates RLR-mediated antiviral signaling: overexpression of SNX5 inhibited virus-induced IFN-β promoter, ISRE, NF-κB, and IRF3 activation, while SNX5 knockdown had the opposite effect. SNX5 overexpression promoted K48-linked (degradative) ubiquitination and reduced K63-linked ubiquitination of RIG-I, reducing RIG-I protein levels. SNX5 overexpression also weakened the VISA-TRAF2/5 interaction. |
Overexpression and RNAi knockdown, luciferase reporter assays for IFN-β/ISRE/NF-κB/IRF3, ubiquitination assay (K48 vs K63), co-immunoprecipitation of VISA-TRAF2/5 |
Biochemical and biophysical research communications |
Medium |
31806368
|
| 2022 |
SNX5 mediates retrograde transport of the vesicular monoamine transporter (VMAT) from endosomes to the TGN, which is required for AP-3-dependent assembly of VMAT into dense core vesicles (DCVs). Loss of SNX5 disrupts VMAT trafficking to DCVs and impairs regulated monoamine release. |
SNX5 loss-of-function, VMAT trafficking assay, DCV monoamine release assay, genetic interaction with AP-3 |
The Journal of cell biology |
High |
35426896
|
| 2023 |
SNX5 interacts with VPS13A via the VPS13 adaptor-binding (VAB) domain of VPS13A and a PxP motif in SNX5 (analogous to yeast Ypt35-Vps13 interaction). This interaction mediates VPS13A association with endosomal subdomains. A pathogenic asparagine mutation in the VAB domain impairs this interaction. |
Co-immunoprecipitation/pulldown, co-localization, domain mapping, mutant analysis |
Life science alliance |
Medium |
36977596
|
| 2024 |
CHC22 clathrin C-terminal trimerization domain interacts with SNX5 (and functionally redundant SNX6), and this interaction is required for CHC22 recruitment to ERGIC membranes. SNX5 also binds the ERGIC tether p115. Both the CHC22-SNX5 and CHC22-p115 interactions are required for CHC22-mediated Golgi-bypass trafficking of GLUT4 to the intracellular GLUT4 storage compartment; disruption of either interaction inhibits GLUT4 targeting. |
Co-immunoprecipitation, domain mapping, GLUT4 trafficking assay, CHC22/SNX5/SNX6 knockdown/knockout, localization imaging |
The EMBO journal |
High |
39160272
|
| 2024 |
SNX5 directly binds Rab11a in cardiomyocytes, increasing Rab11a membrane accumulation. This SNX5-Rab11a interaction promotes membrane translocation of LRP6, a regulator of cardiac hypertrophy. siRNA silencing of Rab11a abolished the LRP6 membrane accumulation induced by SNX5 overexpression. |
Co-immunoprecipitation, fluorescence co-localization, membrane protein fractionation, siRNA knockdown, AAV9-mediated cardiac-specific overexpression in TAC mouse model, echocardiography |
Journal of molecular and cellular cardiology |
Medium |
38950816
|
| 2024 |
SNX5 regulates actin-dependent plasma membrane remodeling in B cells and endolysosomal trafficking at the immune synapse. SNX5-depleted B cells showed enlarged lysosomes not recruited to the synaptic membrane, reducing antigen extraction and presentation capacity. |
siRNA silencing, live-cell imaging, lysosome morphology analysis, antigen extraction assay at immune synapse |
Life science alliance |
Medium |
39448266
|
| 2025 |
SNX5 is a substrate of the E3 ubiquitin ligase MuRF2, which ubiquitinates SNX5 at lysines 290 and 324, leading to its proteasomal degradation. MuRF3 counteracts this effect. SNX5 stabilizes PKA regulatory subunit RI-α within early endosomes; SNX5 knockout reduced RI-α stability, enhanced PKA activity, increased HDAC5 degradation, and upregulated myostatin via MEF2, impairing myogenic differentiation. Both coiled-coil domains of MuRF3 and the BAR domain of SNX5 mediate the MuRF2/3-SNX5 interaction. |
SILAC/AP-MS, co-immunoprecipitation, domain mapping, ubiquitination assay with K290/324 site identification, CRISPR-KO, siRNA, endosome isolation, mass spectrometry of endosomal cargo, myogenic differentiation assays |
Journal of cachexia, sarcopenia and muscle |
High |
41077709
|
| 2025 |
SNX5 knockdown protects neurons from alpha-synuclein-induced toxicity. Extracellular or overexpressed intracellular alpha-synuclein caused fragmentation of the trans-Golgi network, which was prevented by SNX5 knockdown; SNX5 knockdown confined alpha-synuclein to early endosomes. This was confirmed in primary neurons from transgenic mice. |
Genome-wide siRNA screen, independent siRNA validation, immunofluorescence microscopy, primary neuron culture from transgenic mice, qPCR, Western blot |
Translational neurodegeneration |
Medium |
40457499
|
| 2025 |
SNX5 interacts directly with NCOA7-AS (the short antiviral isoform of NCOA7). Crystal structures of NCOA7-AS/SNX5 complexes revealed that the SNX5-interaction motif in NCOA7-AS resembles known cargo motifs recognized by SNX5/6. Specific critical residues at the interface were identified as important for binding and antiviral activity against influenza A virus. SNX5 (and SNX6) are essential for NCOA7-AS antiviral activity. |
Mass spectrometry pulldown (NCOA7-AS partners), co-IP, crystal structure determination, site-directed mutagenesis, antiviral activity assays |
bioRxivpreprint |
High |
|
| 2025 |
Molecular dynamics and metadynamics simulations of SNX1-SNX5 heterodimer on membranes show that SNX5-PXD interacts with the CI-MPR cargo tail via aromatic (π-π) interactions, with a favorable binding free energy. SNX1-PXD provides robust membrane binding largely insensitive to mutation of basic residues. These computational models, benchmarked against available cryo-EM structures of SNX1 homodimer and SNX1-SNX5 heterodimer, support a division of labor: SNX1 handles membrane curvature/binding and SNX5 handles cargo recognition. |
All-atom molecular dynamics, metadynamics simulations, continuum mechanics (DTS) mesoscopic simulation, benchmarking against cryo-EM structures |
Biophysical journal |
Low |
41206513
|
| 2025 |
SNX5 facilitates recycling of phosphorylated EGFR (p-EGFR) back to the plasma membrane to sustain EGFR signaling; loss of SNX5 redirects EGFR trafficking toward late endosomes and lysosomal degradation, thereby attenuating EGFR signaling and mechanosensitive osteogenic differentiation. |
Multi-dataset screening, functional loss-of-function studies, EGFR trafficking assay, in vivo SNX5-deficient model with implant placement |
International journal of oral science |
Medium |
41714616
|
| 2025 |
USP46 deubiquitinates SNX5, increasing its stability. SNX5 knockdown abolished the ferroptosis-promoting effect of USP46 in ischemia-reperfusion-treated neuronal cells, placing SNX5 downstream of USP46 in a ferroptosis-promoting pathway. |
Mass spectrometry (USP46 interactors), co-immunoprecipitation, deubiquitination assay, SNX5 siRNA knockdown, ferroptosis assays, in vivo rat I/R model |
Experimental neurology |
Medium |
39909216
|
| 2025 |
SNX5 interacts with LRP5 in gastric cancer cells; SNX5 inhibits LRP5 internalization and promotes its recycling to the cell membrane, preventing lysosomal degradation of LRP5. Increased membrane LRP5 facilitates β-catenin stabilization and Wnt pathway activation. |
Co-immunoprecipitation, LRP5 internalization/recycling assay, β-catenin stabilization assay, SNX5 knockdown/overexpression |
Oncogene |
Medium |
39922976
|