| 2013 |
Neto2 physically associates with KCC2 (K⁺-Cl⁻ cotransporter) and is required to maintain normal KCC2 protein abundance; Neto2 specifically binds the active oligomeric form of KCC2, and loss of this interaction reduces KCC2-mediated Cl⁻ extrusion, resulting in decreased synaptic inhibition in hippocampal neurons. |
Co-immunoprecipitation, gramicidin perforated patch-clamp, biochemical fractionation, Neto2-null mouse neurons |
Proceedings of the National Academy of Sciences of the United States of America |
High |
23401525
|
| 2015 |
In Neto2-null hippocampal neurons, the reversal potential for GABA (EGABA) is significantly depolarized, surface levels of KCC2 are reduced, and phosphorylation of KCC2 at serine 940 is decreased; Neto2-null mice show reduced sIPSC amplitude and frequency and are susceptible to PTZ-induced seizures. |
Gramicidin perforated patch-clamp, surface biotinylation, immunoblotting, Neto2-null mouse model, PTZ seizure induction |
Frontiers in cellular neuroscience |
High |
26441539
|
| 2011 |
Neto2 acts as an accessory subunit of kainate receptors and slows desensitization and deactivation of GluK1, GluK1/GluK5, and GluK2/GluK5 heteromeric receptors; Neto2 also increases the rate of recovery from desensitization in a subunit-composition-dependent manner. |
Rapid glutamate application to outside-out patches from heterologous cells expressing various KAR subunit combinations with or without Neto2; whole-cell recordings from neurons |
The Journal of neuroscience |
High |
21632929
|
| 2012 |
Neto2 reduces inward rectification of GluK2(Q) kainate receptors (caused by polyamine block) without altering Ca²⁺ permeability; this effect is mediated by the intracellular C-terminal domain of Neto2 (positively charged residues), distinct from its extracellular LDLa domain which controls desensitization modulation. |
Patch-clamp electrophysiology in heterologous cells, domain deletion and point-mutation constructs of Neto1/Neto2 |
The Journal of neuroscience |
High |
22973017
|
| 2012 |
Neto2 interacts with the PDZ domain-containing scaffolding protein GRIP, and this interaction promotes/stabilizes GluK2:GRIP complexes; in Neto2-null cerebellum there is ~40% reduction in GluK2-KARs at the postsynaptic density without change in total GluK2 levels, demonstrating Neto2 controls synaptic localization of KARs. |
Co-immunoprecipitation, postsynaptic density fractionation, Neto2-null mouse cerebellum, co-expression in heterologous cells |
PloS one |
High |
23236500
|
| 2015 |
The M3-S2 gating linker of GluK2 is a critical determinant of Neto2 modulation of KAR desensitization; mutations in these linkers bidirectionally alter Neto2 modulation in an agonist-specific manner and abolish Neto2 modulation of heteromeric receptor desensitization. The D1 dimer interface of the ligand-binding domain is also a site of Neto2 action, where Neto2 alters cation sensitivity in a manner that is eliminated by M3-S2 linker mutations. |
Site-directed mutagenesis of KAR gating linkers, patch-clamp electrophysiology in heterologous cells |
The Journal of physiology |
High |
26282342
|
| 2015 |
The extracellular N-terminal region (including the two CUB domains) of Neto2 is largely responsible for its distinct regulatory effects on desensitization of GluK1 homomeric receptors, as demonstrated by chimeric Neto1/Neto2 subunits. |
Chimeric Neto1/Neto2 constructs, patch-clamp electrophysiology in HEK-293T cells |
Neuropharmacology |
High |
26277340
|
| 2017 |
Neto2 is phosphorylated at serine 409 by CaMKII and PKA both in vitro and in heterologous cells; endogenous Neto2 Ser-409 phosphorylation is detected in brain. Phosphorylation at Ser-409 (mimicked by S409D) inhibits synaptic targeting of the KAR subunit GluK1, revealing a post-translational mechanism controlling KAR synaptic localization. |
Mass spectrometry identification of phosphorylation site, in vitro kinase assays with CaMKII/PKA, phosphomimetic and phosphodeficient mutagenesis, surface biotinylation, synaptic fractionation |
The Journal of biological chemistry |
High |
28717010
|
| 2017 |
Neto2 is highly expressed in neonatal DRG neurons, assembles with and alters gating kinetics of endogenous KARs in a developmentally regulated fashion, and its expression can be upregulated in adult DRG neurons via MEK/ERK signaling and after sciatic nerve crush; Neto2⁻/⁻ adult DRG neurons exhibit stunted neurite outgrowth. |
Whole-cell patch-clamp in DRG neurons, Neto2-null mouse, sciatic nerve crush model, MEK/ERK pharmacological inhibition, neurite outgrowth assay |
The Journal of neuroscience |
High |
28235897
|
| 2019 |
Neto2-null mice show higher cued fear expression and delayed extinction; KAR subunits GluK2/3 are reduced by ~21–37% and GluK5 by ~17–24% at synapses in ventral hippocampus, medial prefrontal cortex, and amygdala of Neto2⁻/⁻ mice, linking Neto2-dependent KAR synaptic abundance to fear circuit function. |
Behavioral fear conditioning, synaptosomal fractionation, immunoblotting, in situ hybridization in Neto2-null mice |
Neuropsychopharmacology |
High |
30770891
|
| 2020 |
Neto2⁻/⁻ adult amygdala shows a 7.5% reduction in PV⁺PNN⁺ cells and reduced PV staining intensity (suggesting PV interneuron immaturity), increased glutamatergic and reduced GABAergic transmission, increased dendritic spine density in basal amygdala, and higher c-Fos activation after fear acquisition, collectively indicating Neto2 is required for maturation of the amygdala PV interneuron network. |
Immunohistochemistry, whole-cell patch-clamp in amygdala slices, spine density analysis, c-Fos immunostaining in Neto2-null mice |
eNeuro |
High |
32788298
|
| 2021 |
Cryo-EM structures of homotetrameric GluK2 in complex with NETO2 (at inhibited and desensitized states) reveal variable stoichiometry (one or two NETO2 subunits per tetramer); NETO2 accesses only two broad faces of the receptor, crosslinking lower lobe of ATD A/C, upper lobe of LBD B/D, and lower lobe of LBD A/C, explaining gating kinetics modulation; the NETO2 transmembrane helix is proximal to the selectivity filter and competes with the amphiphilic H1 helix after M4 for interaction with an intracellular cap domain formed by M1-M2 linkers, revealing the mechanism of rectification regulation. |
Cryo-electron microscopy structure determination of GluK2–NETO2 complex at multiple functional states |
Nature |
High |
34552241
|
| 2023 |
Soluble LRIG3 derived from glioma cells interacts with the CUB1 domain of NETO2 in tumor-associated macrophages (TAMs), and this interaction suppresses M2 polarization of TAMs; CUB1 deletion mutation of NETO2 or NETO2 knockout prevents sLRIG3 from inhibiting M2 polarization, demonstrating that NETO2 mediates the sLRIG3 effect on macrophage polarization. |
Mass spectrometry, Co-immunoprecipitation, NETO2 knockout and domain deletion mutation in TAMs |
Cell death & disease |
Medium |
36639372
|
| 2023 |
GluK2–NETO2 (but not GluK2–NETO1) interaction is upregulated in ipsilateral dorsal horn neurons 6 h after plantar incision; intrathecal NETO2 siRNA reduces GluK2-NETO2 interaction, decreases PKCγ activation, and reduces synaptic incorporation of AMPA receptor GluR1 subunits, attenuating postoperative pain hypersensitivity. |
Co-immunoprecipitation, intrathecal siRNA, synaptic fractionation, von Frey and pain score assays in rat plantar incision model |
Neuroscience letters |
Medium |
37544581
|
| 2023 |
NETO2 knockdown in melanoma cells reduces intracellular Ca²⁺ levels and expression of Ca²⁺/CaMKII pathway genes, suppressing proliferation and metastasis; pharmacological inhibition of CaMKII with KN93 blocks NETO2-induced melanoma proliferation and metastasis, placing NETO2 upstream of Ca²⁺/CaMKII/CREB signaling. |
siRNA knockdown/overexpression, Ca²⁺ measurement, CaMKII inhibitor (KN93), proliferation and invasion assays |
Frontiers of medicine |
Medium |
36738427
|
| 2025 |
Cryo-EM structures of rat GluK2 KAR in apo closed, and agonist (kainate) or PAM (BPAM344)-activated open states, with and without Neto2, show that Neto2 binding does not alter individual or dimeric LBD behavior or ion channel conformation during activation, but prevents tightening of the interface between two LBD dimers, thereby slowing deactivation kinetics. |
Time-resolved cryo-electron microscopy of GluK2–Neto2 complex in multiple functional states |
Nature structural & molecular biology |
High |
40846810
|
| 2025 |
NETO2 slows the channel-opening rate of GluK2 homomeric receptors ~7-fold and the channel-closing rate ~3-fold (compared to ~2-fold slowing by NETO1), and reduces EC50 more significantly than NETO1, establishing NETO2 as the more impactful auxiliary subunit on GluK2 channel-opening kinetics. |
Laser-pulse photolysis combined with whole-cell patch-clamp recording in HEK-293 cells expressing GluK2 with NETO1 or NETO2 |
The Journal of biological chemistry |
High |
41197725
|
| 2025 |
α5-nAChR physically interacts with NETO2 in lung adenocarcinoma cells (confirmed by Co-IP and molecular docking); acetylcholine/nicotine upregulates NETO2, p-CaMKII, p-STAT3, and vimentin via α5-nAChR, and α5-nAChR/NETO2 signaling promotes LUAD cell proliferation, migration, and invasion. |
Co-immunoprecipitation, molecular docking, western blot, siRNA knockdown, cell proliferation/migration/invasion assays |
Cancer cell international |
Low |
40001189
|