| 2006 |
SNX5 and SNX6 were identified as functional components 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 phenocopied suppression of known retromer components, and SNX5 colocalized with SNX1 on early endosomes. Suppression of SNX5 and/or SNX6 caused significant post-translational loss of SNX1. |
RNAi loss-of-function screen, immunoprecipitation, colocalization by fluorescence microscopy |
Journal of cell science |
High |
17148574
|
| 1999 |
SNX5 was identified as a binding partner of the Fanconi anemia complementation group A (FANCA) protein via yeast two-hybrid screening, confirmed by immunoprecipitation. Deletion mutant analysis showed the PX domain of SNX5 is not required for FANCA binding. Overexpression of SNX5 increased FANCA protein levels. |
Yeast two-hybrid screening, immunoprecipitation, deletion mutant analysis, overexpression |
Biochemical and biophysical research communications |
Medium |
10600472
|
| 2008 |
SNX5 promotes macropinocytosis through its PX domain, which specifically interacts with PtdIns(3)P and PtdIns(3,4)P2. SNX5 is recruited to plasma membrane regions containing EGF receptor or PtdIns(3,4)P2, and this recruitment requires EGFR tyrosine kinase activity. Overexpression of SNX5 approximately doubled macropinosome formation; inhibition of EGFR kinase prevented SNX5 plasma membrane recruitment and macropinosome formation. |
Stable GFP-SNX5 expression, PX domain lipid-binding assays, EGF stimulation, EGFR kinase inhibitor (AG1478), fluorescence microscopy |
BMC cell biology |
Medium |
18854019
|
| 2012 |
SNX5 is essential for macropinosome biogenesis in primary mouse macrophages independently of SNX1. Depletion of SNX5 in bone marrow-derived macrophages dramatically decreased number and size of macropinosomes and reduced uptake and processing of soluble ovalbumin, demonstrating SNX5's role in antigen delivery to late endosomes. SNX1 knockout had no effect on SNX5 localization or macropinosome biogenesis. |
siRNA depletion, SNX1 knockout mouse macrophages, fluorescence microscopy, ovalbumin uptake assay |
Biology open |
High |
23213485
|
| 2006 |
Zebrafish Snx5 (ortholog) was identified as a direct binding partner of Mind bomb (Mib), an E3 ubiquitin ligase required for Notch signaling, via yeast two-hybrid screening. Snx5 colocalizes with Mib in early endosomal compartments. Morpholino knockdown of snx5 in zebrafish caused defects in hematopoiesis and blood vessel development. |
Yeast two-hybrid, colocalization by fluorescence microscopy, morpholino knockdown in zebrafish |
FEBS letters |
Medium |
16857196
|
| 2015 |
In zebrafish, SNX5 (ortholog) directly binds to Mind bomb (Mib) and co-localizes with Mib and Delta complexes. SNX5 functions as a vital partner of Mib in promoting endocytosis of Delta and subsequent Notch signaling activation. miR-216a regulates snx5 expression to modulate Notch pathway activity during retinal development. |
Co-localization, morpholino knockdown, overexpression, miRNA gain/loss-of-function in zebrafish |
Developmental biology |
Medium |
25645681
|
| 2008 |
The DHR1 domain of DOCK180 binds to SNX5 (and SNX1, SNX2, SNX6) as identified by nanoflow LC-MS/MS. Among the SNX proteins, SNX5 was coimmunoprecipitated with DOCK180 most efficiently. DOCK180 colocalized with SNX5 at endosomes. RNAi knockdown of either SNX5 or DOCK180 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, and this function was independent of DOCK180's GEF activity toward Rac1. |
Nanoflow LC-MS/MS interactome, co-immunoprecipitation, RNAi knockdown, CI-MPR localization assay, fluorescence microscopy |
Molecular biology of the cell |
High |
18596235
|
| 2017 |
SNX5 co-localizes with and co-immunoprecipitates with the insulin-degrading enzyme (IDE) at the plasma membrane and perinuclear area of human renal proximal tubule cells and in the brush border membrane of proximal tubules. Insulin increases co-localization and co-immunoprecipitation of SNX5 and IDE. Silencing SNX5 in cells decreased IDE expression and activity; renal-selective silencing in mice decreased IDE protein levels and urinary insulin excretion, impairing insulin and glucose responses. |
Co-immunoprecipitation, colocalization by fluorescence microscopy, siRNA silencing in vitro and in vivo, IDE activity assay, mouse metabolic phenotyping |
Diabetologia |
High |
29080975
|
| 2019 |
SNX5 negatively regulates RIG-I-like receptor (RLR)-mediated antiviral signaling. Overexpression of SNX5 inhibits virus-induced activation of the IFN-β promoter, ISRE, NF-κB, and IRF3. SNX5 promotes K48 ubiquitination and attenuates K63 ubiquitination of RIG-I, leading to decreased RIG-I expression. SNX5 overexpression also weakens the interaction between VISA and TRAF2/5. |
Overexpression, RNAi knockdown, luciferase reporter assays, ubiquitination assays, co-immunoprecipitation |
Biochemical and biophysical research communications |
Medium |
31806368
|
| 2022 |
SNX5 is required for retrograde transport of the vesicular monoamine transporter (VMAT) from endosomes to the TGN. Loss of SNX5 disrupts VMAT trafficking to dense core vesicles (DCVs) and impairs regulated monoamine release. SNX5-mediated retrograde transport enables AP-3 to assemble DCV cargo at the TGN, revealing a transient role for AP-3 at the TGN. |
Loss-of-function (SNX5 knockout), VMAT trafficking assays, monoamine release assays, fluorescence microscopy |
The Journal of cell biology |
High |
35426896
|
| 2023 |
SNX5 interacts with VPS13A via the VPS13 adaptor-binding (VAB) domain in VPS13A and a PxP motif in SNX5, mediating VPS13A association with endosomal subdomains. Mutation of a conserved asparagine residue in the VAB domain (also pathogenic in VPS13D) impairs this interaction. VPS13A fragments containing the VAB domain co-localize with SNX5. |
Co-immunoprecipitation, colocalization by fluorescence microscopy, mutagenesis of VAB domain, domain mapping of PxP motif in SNX5 |
Life science alliance |
Medium |
36977596
|
| 2024 |
SNX5 interacts with the C-terminal trimerization domain of CHC22 clathrin (but not CHC17), and SNX5/SNX6 are required for CHC22 localization to ERGIC membranes independently of the ESCPE-1 complex. This interaction, together with a separate isoform-specific CHC22 N-terminal domain interaction with p115, constitutes a bipartite recruitment mechanism required for CHC22-mediated Golgi-bypass routing of GLUT4 to its storage compartment. Interference with either interaction inhibits GLUT4 targeting to the GSC. |
Co-immunoprecipitation, domain mapping, siRNA knockdown of SNX5/SNX6, GLUT4 trafficking assay, fluorescence microscopy |
The EMBO journal |
High |
39160272
|
| 2024 |
SNX5 promotes antigen presentation in B cells by regulating actin-dependent plasma membrane remodeling and lysosomal trafficking to the immune synapse. SNX5 forms protrusions at the plasma membrane in steady state; B cells silenced for SNX5 exhibit enlarged lysosomes that fail to recruit to the synaptic membrane, reducing antigen extraction and presentation. |
siRNA silencing, fluorescence microscopy, live imaging, B cell immune synapse assay, lysosome trafficking assay |
Life science alliance |
Medium |
39448266
|
| 2024 |
SNX5 directly binds Rab11a, increasing membrane accumulation of Rab11a GTPase. This interaction upregulates membrane content of LRP6, a cardiac hypertrophy regulator. siRNA knockdown of Rab11a antagonized the LRP6 membrane accumulation induced by SNX5 overexpression. SNX5 is downregulated in TAC-induced hypertrophic hearts; cardiac-specific overexpression of SNX5 improved cardiac function and reduced fibrosis. |
Interactome analysis, co-immunoprecipitation, fluorescence colocalization, membrane protein profiling, siRNA, AAV9-mediated cardiac-specific overexpression, echocardiography |
Journal of molecular and cellular cardiology |
Medium |
38950816
|
| 2025 |
SNX5 plays a role in alpha-synuclein trafficking and toxicity. Knockdown of SNX5 protected human postmitotic neurons and mouse primary neurons against alpha-synuclein-induced toxicity. Extracellular and intracellular alpha-synuclein caused fragmentation of the trans-Golgi network, which was prevented by SNX5 knockdown, leading to confinement of alpha-synuclein in early endosomes. |
Genome-wide siRNA screen, independent siRNA validation, immunofluorescence microscopy, qPCR, Western blot, mouse primary neurons |
Translational neurodegeneration |
Medium |
40457499
|
| 2025 |
SNX5 is a novel binding partner of MuRF2 and MuRF3 E3 ubiquitin ligases in muscle cells. The BAR domain of SNX5 mediates interaction with both MuRF2 and MuRF3. MuRF2 promotes ubiquitination of SNX5 at lysines 290 and 324, leading to proteasomal degradation, whereas MuRF3 counteracts this effect. SNX5 stabilizes PKA regulatory subunit RI-α within early endosomes; SNX5 knockout reduces RI-α stability, enhances PKA activity, increases HDAC5 degradation via autophagy-lysosomal pathway, upregulates myostatin via MEF2, and impairs myogenic differentiation. |
SILAC AP-MS, co-immunoprecipitation, domain mapping, ubiquitination assays, CRISPR-Cas9 KO, siRNA, endosome isolation, immunocytochemistry, qRT-PCR, Western blot |
Journal of cachexia, sarcopenia and muscle |
High |
41077709
|
| 2025 |
SNX5 interacts with NCOA7-AS, a short isoform of Nuclear Receptor Coactivator 7 with antiviral activity against influenza A virus. Crystal structures of NCOA7-AS/SNX5 complexes revealed that the SNX5-interaction motif in NCOA7-AS is similar to known cargo interaction motifs. SNX5/6 are essential for NCOA7-AS antiviral activity against IAV. Critical residues for binding were identified by mutagenesis. |
Mass spectrometry, crystal structure, mutagenesis, siRNA knockdown, antiviral assay |
bioRxiv (preprint)preprint |
Medium |
bio_10.1101_2025.04.01.646557
|
| 2025 |
USP46 deubiquitinase interacts with and deubiquitinates SNX5, increasing its stability. Stabilized SNX5 promotes ferroptosis in ischemia-reperfusion-injured neuronal cells. Knockdown of SNX5 abolished the ferroptosis-promoting effect of USP46 in I/R-treated cells. |
Mass spectrometry (USP46 interactome), co-immunoprecipitation, deubiquitination assay, siRNA knockdown, ferroptosis assays in OGD/R model |
Experimental neurology |
Medium |
39909216
|
| 2021 |
SNX5 overexpression blocked internalization and intracellular trafficking of CD44 in clear cell renal cell carcinoma (ccRCC) cells, preventing its lysosomal degradation and inhibiting TGF-β-induced EMT. KLF9 directly bound the SNX5 promoter and increased SNX5 transcription. |
Overexpression, knockdown, CD44 internalization assay, reporter assay for KLF9-SNX5 promoter, TGF-β stimulation, in vitro and in vivo proliferation/metastasis assays |
Molecular therapy oncolytics |
Medium |
35024436
|
| 2025 |
SNX5 facilitates recycling of phosphorylated EGFR (p-EGFR) back to the plasma membrane to sustain EGFR signaling in osteoblast progenitors. Loss of Snx5 redirects EGFR trafficking toward late endosomes and lysosomal degradation, weakening EGFR signaling and abolishing mechanically-induced osteogenic enhancement. |
Multi-dataset screening, loss-of-function (Snx5 deficiency), EGFR trafficking assay, fluorescence microscopy, in vivo implant model |
International journal of oral science |
Medium |
41714616
|
| 2025 |
SNX5 inhibits LRP5 internalization and promotes its recycling to the cell membrane in gastric cancer cells, preventing LRP5 from lysosomal degradation. Increased LRP5 membrane localization facilitated β-catenin stabilization and Wnt signaling pathway activation. SNX5 interaction with LRP5 was confirmed by co-immunoprecipitation. |
Co-immunoprecipitation, LRP5 internalization assay, membrane protein fractionation, β-catenin signaling assay, overexpression/knockdown |
Oncogene |
Medium |
39922976
|
| 2025 |
Molecular dynamics and metadynamics simulations of the SNX1-SNX5 heterodimer reveal that SNX5-PXD engages in aromatic residue-rich π-π interactions with the CI-MPR cargo tail, with favorable binding free energy. SNX1-PXD drives membrane binding while SNX5-PXD contributes cargo recognition in a retromer-independent fashion. These computational findings are validated against cryo-EM structures of membrane-bound SNX1-SNX5. |
All-atom molecular dynamics simulation, metadynamics, dynamically triangulated surface mesoscopic simulation, comparison to cryo-EM structures |
Biophysical journal |
Low |
41206513
|