| 2007 |
STK38 physically interacts with MEKK1 and MEKK2 via their carboxy-terminal catalytic domains and negatively regulates MEKK1/2 activation by suppressing MEKK2 autophosphorylation and converting MEKK2 from its phosphorylated to non-phosphorylated form, without preventing MEKK1/2 binding to its substrate SEK1 and without phosphorylating MEKK1/2 itself. |
Co-immunoprecipitation, in vitro kinase assays, shRNA knockdown, domain mapping |
Oncogene |
High |
17906693
|
| 2015 |
STK38 constitutively associates with the E3 ubiquitin ligase Smurf1 and facilitates Smurf1-mediated K48-linked ubiquitination and proteasomal degradation of MEKK2, thereby negatively regulating TLR9/CpG-induced ERK1/2 activation and downstream TNF-α and IL-6 production in macrophages. STK38-deficient mice show increased lethality upon E. coli infection and sepsis. |
Co-immunoprecipitation, ubiquitination assay, STK38 knockout mice, cytokine measurement, shRNA knockdown |
Nature communications |
High |
25981615
|
| 2015 |
STK38 is a novel binding partner of Beclin1 (identified by yeast-two-hybrid), promotes autophagosome formation, supports the interaction of exocyst component Exo84 with Beclin1 and RalB, and is activated in a MOB1- and exocyst-dependent manner upon autophagy induction. STK38 depletion impairs LC3B-II conversion, ATG14L/ATG12/WIPI-1 puncta formation, and Vps34 activity (PI3P production). |
Yeast two-hybrid, Co-immunoprecipitation, RNAi knockdown in human cells and Drosophila, PI3P formation assay, LC3B lipidation assay |
Current biology : CB |
High |
26387716
|
| 2012 |
STK38 regulates MYC protein stability and turnover in a kinase activity-dependent manner in human B-cell lymphoma cells; STK38 kinase inactivation abrogates apoptosis following B-cell receptor activation, and STK38 knockdown decreases MYC protein levels and increases apoptosis. |
Kinase-dead mutant overexpression, siRNA knockdown, protein stability assay, in vivo xenograft, regulatory network analysis |
Oncogene |
Medium |
23178486
|
| 2012 |
STK38 (NDR1) potentiates TNFα-induced NF-κB activation in a kinase activity-dependent manner and interacts with multiple NF-κB signaling components; kinase-dead mutant fails to interact with TRAF2 and fails to enhance NF-κB activation induced by TRAF2 (but not RIP1). |
Co-immunoprecipitation, overexpression of kinase-dead mutants, siRNA knockdown, NF-κB reporter assay |
Cell biochemistry and function |
Medium |
22674419
|
| 2017 |
SOCS2 (Cullin5 E3 ligase) interacts with STK38 (NDR1) and promotes its K48-linked ubiquitination and proteasomal degradation; SOCS2 overexpression antagonizes STK38-induced NF-κB activity upon TNFα stimulation, and NDR1 depletion rescues the effect of SOCS2 deficiency on NF-κB transactivation. |
Mass spectrometry proteomics, co-immunoprecipitation, ubiquitination assay, siRNA knockdown, SOCS2-/- mouse model of colitis |
Scientific reports |
High |
28216640
|
| 2017 |
STK38 phosphorylates Rbm24 to regulate its protein stability in cardiomyocytes; co-immunoprecipitation with mass spectrometry identified STK38 as an endogenous binding partner of Rbm24, and STK38 knockdown or kinase inhibition reduced Rbm24 protein levels and impaired sarcomere assembly. |
Co-immunoprecipitation/mass spectrometry, STK38 knockdown, kinase inhibitor/activator treatment, sarcomere staining |
Scientific reports |
Medium |
28322254
|
| 2018 |
Kir2.1 interacts with STK38 and inhibits Smurf1-mediated ubiquitination and degradation of MEKK2, thereby activating MEK1/2-ERK1/2-Snail pathway to drive EMT and invasion in gastric cancer cells, independent of ion permeation. |
Co-immunoprecipitation, ubiquitination assay, siRNA knockdown, invasion/migration assay, mouse metastasis model |
Cancer research |
Medium |
29549164
|
| 2019 |
STK38 phosphorylates XPO1 on serine 1055 (in XPO1's C-terminal auto-inhibitory domain), activating XPO1-dependent nuclear export; STK38 itself shuttles between the nucleus and cytoplasm and its nuclear exit requires both XPO1 and STK38 kinase activity. This mechanism also regulates nuclear export of Beclin1 and YAP1. |
Proximity-labeling assay, phospho-site mutagenesis, live-cell imaging, nuclear/cytoplasmic fractionation, co-immunoprecipitation, kinase-dead mutant |
EMBO reports |
High |
31544310
|
| 2019 |
MEKK2 phosphorylates STK38 at Ser91, protecting STK38 from calpain-mediated cleavage at its proximal N-terminal region; calpain I directly cleaves STK38 in vitro, and deletion of the N-terminal region or phosphorylation-defective Ser91 mutant alters STK38 stability under hyperthermia. |
In vitro calpain cleavage assay, in vitro MEKK2 kinase assay, phosphorylation-defective mutants, calpain inhibitor (calpeptin) treatment, heat/calcium ionophore stress |
Scientific reports |
High |
31690749
|
| 2019 |
STK38 inhibits BAG3-mediated chaperone-assisted selective autophagy (CASA) by binding BAG3 and disrupting its functional interplay with HSPB8 and SYNPO2, independently of STK38 kinase activity. |
Co-immunoprecipitation, kinase-dead mutant overexpression, RNAi knockdown, autophagy flux assay |
Biochimica et biophysica acta. Molecular cell research |
Medium |
31326538
|
| 2016 |
STK38 supports oncogenic Ras-driven transformation by promoting detachment-induced autophagy and mitophagy; STK38 knockdown impairs anoikis resistance and anchorage-independent growth, and knockdown of PINK1 or Parkin similarly impairs these, while knockdown of USP30 rescues anchorage-independent growth in STK38-depleted Ras-transformed cells, placing STK38 upstream of PINK1/Parkin-mediated mitophagy. |
shRNA knockdown, genetic epistasis (PINK1/Parkin/USP30), soft agar assay, xenograft model, mitochondrial ROS measurement |
Oncotarget |
Medium |
27283898
|
| 2020 |
STK38 serves as a reader for monoufmylated histone H4 at Lys31 via a UFM1-binding motif; in a kinase-independent manner, STK38 recruits SUV39H1 to DNA double-strand breaks, leading to H3K9 trimethylation and Tip60 activation, which promotes ATM activation. |
Co-immunoprecipitation, chromatin immunoprecipitation, kinase-dead mutant, UFM1-binding motif mutation, H3K9me3 and Tip60 activity assays |
Science advances |
High |
32537488
|
| 2021 |
STK38 interacts with PPARγ (identified by Flag-PPARγ pulldown/MS), enhances PPARγ transactivation activity and protein stability (extending half-life from ~1.08 to 1.95 h), and promotes adipogenesis in a PPARγ-dependent manner, without requiring STK38 kinase activity. |
Flag-tag pulldown/mass spectrometry, co-immunoprecipitation, reporter assay, protein half-life assay (cycloheximide chase), STK38 overexpression/knockdown, kinase-dead mutant |
Adipocyte |
Medium |
34670478
|
| 2023 |
STK38 phosphorylates the scaffold protein DOK1, which is required for lysosomal recruitment of the AAA+ ATPase VPS4 to terminate microlysophagy (ESCRT disassembly); STK38 depletion impairs VPS4 recruitment and accelerates DNA damage-induced cellular senescence in human cells. |
Phosphorylation assay, RNAi knockdown, lysosomal recruitment imaging, senescence assay, genetic analysis in C. elegans |
EMBO reports |
Medium |
37987447
|
| 2023 |
NLRP12 interacts with STK38 (identified by proteomics), and the NLRP12/STK38 axis inhibits phosphorylation of GSK3β, leading to β-catenin degradation and suppression of Wnt/β-catenin signaling in intestinal epithelial cells; NLRP12-deficient mice show elevated p-GSK3β and β-catenin in colorectal tumors. |
Proteomic interaction studies, co-immunoprecipitation, Nlrp12 conditional knockout mice, intestinal organoids, phosphorylation assay |
The Journal of clinical investigation |
Medium |
37581937
|
| 2023 |
STK38 binds TBK1 and induces TBK1 phosphorylation to promote NF-κB nuclear translocation and proinflammatory cytokine release; STK38 also reduces AMPK-ACC signaling to enhance de novo lipogenesis, causing hepatic lipid accumulation in HFD-fed mice. |
Co-immunoprecipitation, siRNA/ectopic expression in mouse liver, NF-κB nuclear translocation assay, AMPK-ACC phosphorylation assay, in vivo mouse model |
The Journal of biological chemistry |
Medium |
37028764
|
| 2025 |
STK38 phosphorylates GPX4 at Ser45; SCRN1 enhances the STK38-GPX4 interaction to promote this phosphorylation, which impairs HSC70 recognition and chaperone-mediated autophagy-dependent GPX4 degradation, thereby conferring ferroptosis resistance in hepatocellular carcinoma. |
Co-immunoprecipitation, in vitro phosphorylation assay, chaperone-mediated autophagy assay, lipid peroxidation measurement, ferroptosis assay |
Nature cancer |
Medium |
41145774
|
| 2026 |
STK38 and STK38L inhibit LATS kinase by competitively binding MOB1 and disrupting the LATS-MOB1 complex, independent of their kinase activity; this mechanism is evolutionarily conserved (Drosophila ortholog Tricornered similarly impairs Warts-Mats complex formation), resulting in YAP activation and tissue overgrowth. |
Co-immunoprecipitation, competitive binding assays, kinase-dead mutants, Drosophila genetic model (wing size phenotype), ovarian cancer xenograft |
Genes & development |
High |
42128666
|
| 2026 |
STK38 is a non-canonical YAP1 kinase that phosphorylates and deactivates YAP1 in uninjured chief cells; during paligenosis, STK38 is degraded by autophagy, leading to YAP1 dephosphorylation and activation, which is necessary and sufficient for conversion of chief cells into metaplastic proliferating progenitors. STK38 interacts with NF2/Merlin, like canonical Hippo kinases. |
In vivo mouse stomach model, STK38 knockdown/overexpression, YAP1 phosphorylation assay, co-immunoprecipitation with NF2, autophagy inhibition experiments |
Proceedings of the National Academy of Sciences of the United States of America |
High |
41911447
|
| 2026 |
STK38 interacts with KIF7 and GSK3β to promote Hedgehog signaling by facilitating KIF7 ciliary localization and reprogramming GSK3β substrate selectivity (leading to GLI1 stabilization and β-catenin suppression); GLI1 in turn directly enhances STK38 transcription, establishing a positive feedback loop. |
Co-immunoprecipitation, ciliary localization imaging, GSK3β substrate assay, GLI1 ChIP, siRNA knockdown, organoid model |
Cell death & disease |
Medium |
41540036
|
| 2026 |
RFC4 stabilizes STK38 and the RFC4-STK38 complex facilitates BECN1 (Beclin1) recruitment to promote autophagy and temozolomide resistance in glioblastoma; phosphorylation of STK38 at T444 stabilizes this complex, and a phospho-deficient T444 mutant impairs autophagy. |
Multi-omics analysis, co-immunoprecipitation, phospho-deficient mutant, autophagy flux assay, in vivo xenograft, autophagy inhibitor rescue |
Nature communications |
Medium |
41872171
|
| 2025 |
STK38 kinase activity is required for MerTK tyrosine phosphorylation and activation of Rac1 and Cdc42 downstream of oncogenic Ras; STK38 was identified as a MerTK complex binding partner by mass spectrometry, and its kinase-dead form failed to support Ras-induced cell migration. |
MerTK complex purification/mass spectrometry, Co-immunoprecipitation, kinase-dead mutant, siRNA knockdown, Rac1/Cdc42 activation assay, cell migration assay |
International journal of molecular sciences |
Medium |
41226428
|