| 2014 |
CLEC16A is a membrane-associated endosomal protein that interacts with E3 ubiquitin ligase Nrdp1. Loss of Clec16a leads to an increase in the Nrdp1 target Parkin, a master regulator of mitophagy. Pancreas-specific deletion of Clec16a causes abnormal mitochondria with reduced oxygen consumption and ATP concentration, impairing glucose-stimulated insulin release. |
Co-immunoprecipitation, conditional knockout mouse, mitochondrial function assays (oxygen consumption, ATP measurement), glucose-stimulated insulin secretion assay |
Cell |
High |
24949970
|
| 2017 |
CLEC16A encodes an E3 ubiquitin ligase that promotes non-degradative ubiquitin conjugates to direct its mitophagy effectors. CLEC16A forms a tripartite complex with E3 ligase Nrdp1 and deubiquitinase USP8, and ubiquitination is essential for assembly and stability of this complex. Inhibition of CLEC16A by lenalidomide impairs β-cell mitophagy, oxygen consumption, and insulin secretion. |
Co-immunoprecipitation, ubiquitination assays, in vitro E3 ligase activity assay, siRNA knockdown, lenalidomide treatment in cell lines and patients |
Diabetes |
High |
29180353
|
| 2015 |
Clec16a regulates autophagy in thymic epithelial cells (TECs). Clec16a knockdown in NOD mice protected against autoimmunity through T cell hyporeactivity, secondary to changes in TEC stimuli driving thymocyte selection, implicating Clec16a's role in TEC autophagy as the mechanism. |
shRNA knockdown mouse model (NOD), T cell functional assays, diabetes incidence monitoring, autophagy assays in thymic epithelial cells |
Immunity |
High |
25979422
|
| 2015 |
CLEC16A controls HLA class II expression in antigen-presenting cells via regulation of late endosome biogenesis. CLEC16A knockdown in dendritic cells severely impaired cytoplasmic distribution and formation of HLA class II-positive late endosomes. CLEC16A directly binds RILP and the HOPS complex (by co-immunoprecipitation) and participates in dynein motor complex-dependent trafficking of HLA class II-positive late endosomes to perinuclear regions. |
siRNA knockdown, co-immunoprecipitation, immunofluorescence, electron microscopy, confocal microscopy |
Brain : a journal of neurology |
High |
25823473
|
| 2015 |
Pdx1 transcriptionally regulates Clec16a expression by binding its chromatin locus. Loss of Pdx1 reduces Clec16a and Nrdp1 expression, impairs autophagosome-lysosome fusion during mitophagy, and causes mitochondrial dysfunction. Restoration of Clec16a after Pdx1 loss rescues mitochondrial trafficking during mitophagy and improves glucose-stimulated insulin release, positioning Clec16a downstream of Pdx1 in a Pdx1-Clec16a-Nrdp1 mitophagy pathway. |
Chromatin occupancy analysis (ChIP), expression microarray, siRNA knockdown, Clec16a overexpression rescue, mitochondrial trafficking assays, glucose-stimulated insulin secretion assay |
Diabetes |
High |
26085571
|
| 2016 |
Clec16a is critical for autolysosome function and clearance. Clec16a-mutant mice develop neurodegeneration with Purkinje cell loss and motor impairment. Clec16a-deficient cells show abnormal bulk autophagy with striking accumulation of LC3 and LAMP-1 positive autolysosomes containing undigested cytoplasmic contents, despite unimpaired autophagosome formation. Endocytosis, lysosome, and Golgi functions were normal, pinpointing the defect specifically to autolysosome clearance. |
Mouse genetic models (two independent Clec16a mutant strains), immunofluorescence, LC3/LAMP-1 staining, p62 accumulation assay, neurological/motor testing, Golgi morphology analysis |
Scientific reports |
High |
26987296
|
| 2017 |
CLEC16A resides in cytosolic vesicles and the Golgi. Overexpression of CLEC16A inhibits starvation-induced autophagy by activating the mTOR pathway, causing heightened mTOR activity and diminished LC3 autophagic activity following nutrient deprivation. CLEC16A deficiency delays mTOR activity in response to nutrient sensing, resulting in augmented autophagy. Nutrient removal promotes CLEC16A clustering within the Golgi. |
siRNA silencing, ectopic overexpression, quantitative proteomics, immunoblotting, mTOR activity assays, LC3 autophagy reporter, confocal microscopy for subcellular localization |
Experimental cell research |
Medium |
28223137
|
| 2017 |
C. elegans GOP-1 (the CLEC16A ortholog) promotes apoptotic cell degradation by activating the small GTPase UNC-108/Rab2. GOP-1 transiently associates with cell corpse-containing phagosomes, disrupts GDI-UNC-108 complexes, and promotes activation and membrane recruitment of UNC-108/Rab2 in vitro. Loss of gop-1 impairs phagosome maturation through the RAB-5-positive stage, causing defects in phagosome acidification and phagolysosome formation, and also causes defects in endosome and dense core vesicle maturation. |
C. elegans genetics, in vitro GEF/GDI displacement assay, live imaging, epistasis analysis with unc-108 |
The Journal of cell biology |
High |
28424218
|
| 2018 |
In Clec16a knockout mice, mitochondrial potential is lowered in splenocyte B, T, and NK cells, resulting in aggregation of unhealthy mitochondria. Disrupted mitophagy in splenic B and T cells is attenuated by PI3K and/or MEK inhibition, placing CLEC16A in a pathway upstream of MEK signaling in mitophagy regulation. NK cells from KO mice show increased cytotoxicity. |
Inducible knockout mouse, mitochondrial potential assays, flow cytometry, PI3K/MEK inhibitor treatment, NK cell cytotoxicity assays |
PloS one |
Medium |
30226884
|
| 2019 |
CLEC16A is a cytosolic protein that associates with Vps16A, a subunit of the class C Vps-HOPS complex. CLEC16A overexpression in YTS NK cells reduces NK cell cytotoxicity and IFN-γ release, delays DC maturation, decreases conjugate formation, downregulates cell-surface receptors, and increases autophagy. CLEC16A knockdown has opposite effects and disrupts mitophagy. Subcellular localization studies place CLEC16A at cytosolic vesicles modulating receptor expression via autophagy. |
Overexpression, siRNA knockdown, Co-immunoprecipitation (Vps16A interaction), NK cytotoxicity assays, flow cytometry, confocal/subcellular localization studies |
Frontiers in immunology |
Medium |
30774629
|
| 2020 |
CLEC16A participates in the BCR-dependent HLA class II pathway in human B cells. Stable knockdown of CLEC16A in EBV-positive Raji B cells resulted in upregulation of surface HLA-DR and CD74 (invariant chain), reduction of surface CLIP, decreased IgM-mediated antigen uptake, and less clustered MIICs (MHC class II compartments). CLEC16A was coexpressed with surface CLIP in EBV-positive B cell lines. |
Stable shRNA knockdown, flow cytometry, immunofluorescence, antigen uptake assay, primary B cell expression analysis |
Journal of immunology |
Medium |
32641384
|
| 2021 |
Loss of CLEC16A triggers ER stress that activates hormone-sensitive lipase (HSL)-mediated lipolysis, contributing to adipose inflammation via activation of JAK-STAT, ERK1/2, P38, and JNK signaling and release of proinflammatory mediators. Treatment with a JAK-STAT inhibitor (tofacitinib) partially rescued the inflammatory lipodystrophic phenotype and improved survival in Clec16a KO mice. |
Inducible whole-body KO mouse (Clec16aΔUBC), metabolic analysis, cytokine measurements, JAK-STAT inhibitor treatment, ER stress markers, lipolysis assays |
Scientific reports |
Medium |
33795715
|
| 2022 |
CLEC16A localizes to early endosomes in HEK293T cells and interacts with retromer complex subunits and the endosomal E3 ubiquitin ligase TRIM27 (identified by mass spectrometry). CLEC16A knockdown increased TRIM27 adhesion to early endosomes and abnormal accumulation of endosomal F-actin, indicating disrupted vesicle sorting. A disease-associated C-terminal truncation of CLEC16A abolishes both its endosomal localization and interaction with TRIM27. In zebrafish, clec16a CRISPR mutagenesis caused accumulated acidic/phagolysosome compartments and dysregulated mitophagy, rescued by wild-type but not truncated human CLEC16A. |
Mass spectrometry proteomics, Co-immunoprecipitation, immunofluorescence, CRISPR-Cas9 zebrafish mutagenesis, rescue experiments with WT vs. truncated CLEC16A |
Human genetics |
High |
36538041
|
| 2022 |
A C-terminal intrinsically disordered protein region (IDPR) of CLEC16A, confirmed by carbon-detect NMR to lack secondary structure, is critical for mitochondrial quality control. Loss of the C-terminal IDPR increases CLEC16A ubiquitination and degradation, impairs assembly of the mitophagy regulatory machinery, and causes impaired mitophagy, mitochondrial dysfunction, glucose-stimulated insulin secretion defects, and glucose intolerance in vivo. Proline bias within the IDPR (not sequence order or charge) determines CLEC16A stability. |
Carbon-detect NMR (structural validation of IDPR), in vivo mouse models with IDPR deletion, ubiquitination assays, mitophagy assays, metabolic tests (GTT), insulin secretion assays, mutagenesis |
Autophagy |
High |
35604110
|
| 2023 |
CLEC16A contains an internal intrinsically disordered protein region (IDPR), confirmed by NMR and CD spectroscopy. This internal IDPR is crucial for CLEC16A degradation and turnover: RNF41 binds and acts upon the internal IDPR to destabilize CLEC16A. Loss of the internal IDPR also destabilizes the ubiquitin-dependent tripartite CLEC16A-RNF41-USP8 mitophagy complex. |
NMR spectroscopy, CD spectroscopy, Co-immunoprecipitation, ubiquitination/degradation assays, IDPR deletion mutants |
The Journal of biological chemistry |
High |
36822331
|
| 2021 |
CLEC16A expression in T cells is located in Rab4a-positive recycling endosomes (demonstrated by imaging flow cytometry and confocal microscopy). CLEC16A knockdown in Jurkat cells lowered cell-surface expression of the T cell receptor, though this did not significantly impact T cell activation in vitro. |
Imaging flow cytometry, confocal microscopy, siRNA knockdown, flow cytometry for TCR surface expression |
Scandinavian journal of immunology |
Medium |
34643957
|
| 2025 |
In astrocytes, CLEC16A promotes mitophagy and suppresses NF-κB signaling. CLEC16A deficiency leads to mitochondrial dysfunction and accumulation of mitochondrial products that activate NF-κB, the NLRP3 inflammasome, and gasdermin D. Astrocyte-specific Clec16a inactivation worsened experimental autoimmune encephalomyelitis in mice, and disrupted mitophagic capacity and gasdermin D activation were detected in astrocytes from MS patient samples. |
Genome-wide CRISPR forward genetic screen, astrocyte-specific conditional KO mouse (EAE model), small-molecule perturbation, multiomic analyses, human MS tissue analysis |
Nature neuroscience |
High |
40033124
|
| 2026 |
Clec16a (E3 ubiquitin ligase) is enriched in hemogenic endothelium and regulates embryonic hematopoietic stem and progenitor cell (HSPC) emergence via mitophagy. Clec16a deficiency promotes aberrant K48-linked ubiquitination and proteasomal degradation of ATG5, leading to impaired mitophagy, mitochondrial dysfunction, elevated reactive oxygen species, disrupted arterial identity, and impaired endothelial-to-hematopoietic transition (EHT) in zebrafish. |
Zebrafish loss-of-function, transcriptomic and proteomic analyses, ubiquitination assays (K48-linkage specific), mitophagy assays, ROS measurements, HEK293T cell models |
Cell reports |
Medium |
41719124
|
| 2024 |
The CLEC16A intronic locus (intron 19) functions as an enhancer regulating multiple target genes including the distant gene ATF7IP2 through chromatin interactions. Distinct transcription factor complexes mediate allele-specific chromatin interactions. Disruption of this locus affects the AKT signaling pathway and molecular response of CD4+ T cells to immune stimulation. |
CRISPR-Cas9 deletion of candidate SNP in T cell lines, RNA-sequencing, circular chromosome conformation capture (4C), proteomics of transcription factor complexes, reverse phase protein array |
The Journal of allergy and clinical immunology |
Medium |
38191060
|
| 2025 |
The non-coding intronic variant rs17673553 in CLEC16A acts as an enhancer; the risk allele increases binding of H3K27ac and H3K4me1 histone marks, CTCF, GATA3, and STAT3. Knockdown of GATA3 and STAT3 decreases CLEC16A expression. CRISPR KO of CLEC16A reduces starvation-induced autophagy compared to wild-type cells. |
Luciferase reporter assay, ChIP-qPCR, CRISPR genome editing, CRISPR-dCas9 epigenetic activation/silencing, siRNA knockdown of transcription factors, autophagy assays |
International journal of molecular sciences |
Medium |
39796169
|