| 2001 |
E4BP4/NFIL3 functions as a transcriptional repressor that competes with PAR family proteins (DBP, HLF, TEF) for the same DNA binding sites but cannot heterodimerize with them; E4BP4 and PAR proteins oscillate in antiphase in the SCN and liver, forming a reciprocating on/off switch for target gene transcription. |
Transcriptional reporter assays in vitro, electrophoretic mobility shift assay (EMSA), mRNA rhythm profiling in SCN and liver, analysis of mCry-deficient mice |
Genes & development |
High |
11316793
|
| 1994 |
E4BP4 contains a 65-amino-acid minimal repression domain near its C-terminus that is sufficient to repress transcription when fused to the GAL4 DNA-binding domain; a charge-configuration mutation in this domain abolishes repressor activity, and the mechanism involves interaction with a component of the general transcription machinery rather than resembling known repression domains. |
Domain mapping by GAL4 fusion reporter assays, site-directed mutagenesis |
Nucleic acids research |
High |
8127655
|
| 1996 |
The E4BP4 repression domain interacts specifically with the TBP-binding repressor protein Dr1; E4BP4 mutants deficient in repression are also deficient in Dr1 binding, suggesting that recruitment of Dr1 mediates transcriptional repression by E4BP4. |
Protein-protein interaction mapping, pulldown assays, correlation of repression-defective mutants with Dr1 binding |
Nucleic acids research |
Medium |
8836190
|
| 1995 |
NFIL3/NF-IL3A binds the sequence TAATTACGTCTG (minimal: ATTACG) in the IL-3 promoter and transactivates IL-3 promoter-reporter constructs in resting T cells in a binding-site-dependent manner, establishing it as a transcriptional activator of the human IL-3 gene. |
DNase I footprinting, gel shift assay, cotransfection reporter assays with mutant promoters |
Molecular and cellular biology |
High |
7565758
|
| 1995 |
E4BP4 is a phosphoprotein; phosphorylation produced in baculovirus-infected Sf9 cells (but not in E. coli) enhances its DNA-binding activity, and the leucine heptad repeat domain is required for both DNA binding and repression activity. |
Comparison of bacterially vs. baculovirus-produced protein by gel shift assay, mutagenesis of leucine zipper, post-translational modification analysis |
Biochimica et biophysica acta |
Medium |
8547328
|
| 1997 |
NFIL3/E4BP4 is a delayed-early IL-3-responsive gene in pro-B lymphocytes regulated through the Ras signaling pathway; enforced expression of NFIL3 promotes survival but not proliferation of IL-3-deprived pro-B cells, identifying it as a downstream mediator of IL-3 survival signaling. |
Northern blot, enforced cDNA expression in IL-3-dependent pro-B cell lines (Baf-3, FL5.12), survival assays upon growth factor withdrawal |
Proceedings of the National Academy of Sciences of the United States of America |
High |
9122243
|
| 1999 |
NFIL3 expression is regulated by oncogenic Ras through both the Raf-MAPK and PI3K pathways; NFIL3 inhibits apoptosis independently of Bcl-xL, defining two distinct IL-3 survival pathways. |
Constitutively active Ras mutant expression, pathway inhibitors, cell survival assays in IL-3-dependent pro-B cells |
Molecular and cellular biology |
Medium |
10082541
|
| 2002 |
GATA-1 and GATA-2 bind the E4bp4 promoter GATA motif in vitro and in vivo; GATA-1 overexpression transactivates the E4bp4 reporter and modulates IL-3-withdrawal apoptosis, placing GATA factors upstream of NFIL3 in the IL-3 survival pathway. |
Promoter deletion analysis, gel shift assay, chromatin immunoprecipitation (ChIP), stable overexpression of GATA-1 and GATA-1 DNA-binding mutant, apoptosis assays |
The Journal of biological chemistry |
High |
12023274
|
| 2004 |
Casein kinase 1ε (CK1ε) physically associates with E4BP4, phosphorylates it at Ser182, and promotes proteasomal degradation of E4BP4 protein; CK1ε also attenuates E4BP4 nuclear accumulation independently of its kinase activity, thereby reducing E4BP4-mediated repression of cPer2. |
Co-immunoprecipitation, in vitro kinase assay, site-directed mutagenesis (Ser182), proteasome inhibitor rescue, nuclear localization assay |
Current biology : CB |
High |
15182670
|
| 2006 |
E4BP4 binds a novel D-box-like element (B-site) in the Per2 promoter and negatively regulates Per2 mRNA oscillation; the B-site together with the E2 enhancer is required for robust circadian Per2 expression in cell-autonomous clocks. |
siRNA knockdown, luciferase reporter assays with promoter deletion/mutation constructs, chromatin immunoprecipitation (ChIP) |
Nucleic acids research |
High |
17182630
|
| 2007 |
E4BP4 physically interacts with PER2 (via E4BP4's C-terminal repression domain) and with CRY2, placing E4BP4 within the negative regulator complex of the mammalian circadian clock. |
Co-immunoprecipitation, deletion mapping of interaction domain |
Biochemical and biophysical research communications |
Medium |
17274955
|
| 2009 |
E4BP4/NFIL3 is essential for NK cell development in a cell-intrinsic manner, acting downstream of the IL-15 receptor and upstream of the transcription factor Id2; Nfil3−/− mice specifically lack NK cells but retain B, T, and NKT cells, and NK cell-mediated cytotoxicity is severely impaired. |
Gene-targeted Nfil3−/− mice, mixed bone marrow chimeras (cell-intrinsic test), hematopoietic progenitor overexpression, NK cytotoxicity assays |
Nature immunology |
High |
19749763
|
| 2009 |
NFIL3 is an anti-apoptotic transcription factor in NK cells; Nfil3−/− mice show a specific NK cell intrinsic developmental block with severely reduced mature NK cells, impaired IFN-γ production and cytolytic activity, and failure to reject MHC-I-deficient cells in vivo. |
Gene-targeted Nfil3−/− mice, NK cell-intrinsic bone marrow transfer, in vitro cytotoxicity and IFN-γ assays, in vivo rejection assay |
The Journal of experimental medicine |
High |
19995955
|
| 2009 |
NFIL3 is induced by IL-4 in B cells in a STAT6-dependent manner, binds the Iε promoter in vivo, and is required for IL-4-induced germline epsilon (GLε) transcription and IgE class switching in a B-cell-intrinsic manner. |
Nfil3−/− mice, ChIP (in vivo binding to Iε promoter), enforced NFIL3 expression rescue, cycloheximide experiment to show direct induction of GLε |
Proceedings of the National Academy of Sciences of the United States of America |
High |
20080759
|
| 2010 |
E4BP4 binds a D-box element in the distal Fgf21 promoter and suppresses FGF21 transcription; insulin increases E4BP4 expression and promoter binding via AKT activation, linking E4BP4 to circadian and feeding-state repression of FGF21. |
E4BP4 overexpression/depletion in hepatocytes, luciferase reporter with D-box mutation, ChIP, FGF21 secretion assay, AKT inhibitor experiments |
The Journal of biological chemistry |
High |
20851878
|
| 2011 |
NFIL3/E4BP4 is essential for development of CD8α+ conventional DCs in a cell-intrinsic manner, in part through regulation of Batf3 expression; Nfil3−/− mice lack CD8α+ cDCs, show impaired cross-priming of CD8+ T cells and reduced IL-12 production after TLR3 stimulation. |
Nfil3−/− mice, Flt3L bone marrow cultures, cross-priming assay, IL-12 production assay |
Blood |
High |
21474667
|
| 2011 |
E4BP4 directly binds to and negatively regulates the Il13 gene in TH2 cells, while positively regulating IL-4 production; E4BP4 controls TH2 cytokine balance in a T-cell-intrinsic manner. |
Nfil3−/− mice, enforced E4BP4 expression, ChIP, cytokine assays in TH2 cells |
The EMBO journal |
High |
21499227
|
| 2011 |
NFIL3 is induced by IL-10 via STAT3 in myeloid cells and binds a single 10-bp site in a distal enhancer 10 kb upstream of the Il12b transcription start site, mediating transcriptional repression of IL-12p40 as part of a negative feedback loop. |
Chromatin immunoprecipitation (ChIP), enhancer deletion analysis, NFIL3-deficient myeloid cells, IL-10/STAT3 pathway analysis |
The Journal of biological chemistry |
High |
21566115
|
| 2011 |
NFIL3 binds the Il12b promoter and represses IL-12p40 production in macrophages induced by bacterial products; repression requires a C-terminal minimal repression domain of NFIL3 and is IL-10-independent. |
ChIP, Il12b-BAC-GFP reporter macrophage line with NFIL3 overexpression/shRNA knockdown, Nfil3−/− macrophages |
Journal of immunology (Baltimore, Md. : 1950) |
High |
21383239
|
| 2011 |
E4BP4 controls IL-10 and IL-13 production in CD4+ T cells; enforced E4bp4 expression induces IL-10 and IL-13 in TH1 cells, and E4bp4−/− TH1, Treg, and NKT cells show attenuated IL-10 and IL-13 expression. |
Nfil3−/− mice, enforced expression vectors, cytokine measurement in multiple T cell subsets |
Nature immunology |
High |
21460847
|
| 2013 |
E4BP4 interacts with histone methyltransferase G9a; E4BP4-dependent repression of Fgf21 requires G9a catalytic activity (SET domain), and E4BP4 overexpression increases H3K9me2 at the Fgf21 promoter, defining an epigenetic repression mechanism. |
Co-immunoprecipitation (E4BP4–G9a interaction), G9a inhibitor (BIX01294), SET domain deletion mutant, ChIP for H3K9me2, adenoviral shRNA knockdown in vivo |
The Journal of biological chemistry |
High |
23283977
|
| 2014 |
E4BP4 is required at the CLP stage for NK lineage commitment and directly binds the regulatory regions of Eomes and Id2, promoting their transcription; Eomes and Id2 overexpression rescues NK production from E4bp4−/− progenitors. |
Conditional/stage-specific E4bp4 deletion, ChIP (E4BP4 binding to Eomes and Id2 loci), rescue experiments with Eomes/Id2 overexpression |
The Journal of experimental medicine |
High |
24663216
|
| 2014 |
NFIL3 directs differentiation of a committed ILC precursor (αLP/CXCR6+ cells) that gives rise to all ILC lineages; NFIL3 governs ILC development by directly regulating expression of the transcription factor TOX. |
Nfil3−/− mice, clonal differentiation assays, bone marrow precursor identification, ChIP/reporter for TOX regulation |
eLife |
High |
25310240
|
| 2014 |
NFIL3 is required for the CHILP (common helper innate lymphoid cell progenitor) and acts via direct Id2 regulation; NFIL3 expression in lymphoid progenitors is controlled by IL-7, and ectopic Id2 expression rescues defective ILC lineage development in Nfil3-null precursors in vivo. |
Conditional Nfil3 targeting, mixed bone marrow chimeras, Id2 rescue experiments in vivo, promoter binding assays |
Cell reports |
High |
25801035
|
| 2014 |
Nfil3 is required for Eomes-expressing conventional NK cells but not for TRAIL+Eomes− NK cells; restoration of Eomes in Nfil3−/− progenitors rescues NK cell development, placing Eomes as the key downstream effector of Nfil3 in NK commitment. |
Nfil3−/− mice, Eomes reporter/flow cytometry, retroviral Eomes overexpression rescue in Nfil3−/− progenitors |
Journal of immunology (Baltimore, Md. : 1950) |
High |
24532575
|
| 2015 |
IL-27 induces NFIL3, which promotes permissive chromatin remodeling at the Tim-3 locus and drives Tim-3 and IL-10 expression in T cells; the inhibitory effect of IL-27-conditioned TH1 cells is NFIL3-dependent. |
NFIL3 KO/KD, chromatin remodeling assays (ATAC/accessibility), Tim-3 and IL-10 expression assays, IL-27R−/− mice |
Nature communications |
High |
25614966
|
| 2015 |
PDK1 connects IL-15 signaling to E4BP4 induction via mTOR during early NK cell development; PDK1-deficient NK cells show reduced mTOR activation and E4BP4 induction, and ectopic E4BP4 expression or mTOR activation partially rescues NK cell development. |
Conditional PDK1 KO, E4BP4 ectopic expression rescue, mTOR activation bypass, IL-15/CD122 signaling assays |
The Journal of experimental medicine |
High |
25624444
|
| 2016 |
E4BP4 binds the Fgf21 promoter D-box element and represses FGF21 expression; E4bp4 knockout mice show upregulated hepatic Fgf21. E4BP4 interacts with nuclear SREBP-1c to preserve its acetylation and protect it from ubiquitination-dependent degradation, thereby amplifying lipogenesis. |
E4bp4−/− mice, co-immunoprecipitation (E4BP4–SREBP-1c), ubiquitination assay, adenoviral shRNA in vivo, lipogenic enzyme expression assays |
Journal of lipid research |
High |
27252523
|
| 2017 |
Smad3 directly suppresses E4BP4/NFIL3 transcription; deletion of Smad3 expands NK cells and enhances their anti-tumor functions via E4BP4, and Smad3 suppresses IFN-γ production via E4BP4 in a T-bet-independent manner. |
Smad3−/− bone marrow transfer, ChIP (Smad3 binding to E4BP4 locus), E4BP4 rescue in Smad3−/− cells, tumor models, SIS3 inhibitor |
Nature communications |
High |
28262747
|
| 2017 |
The intestinal microbiota controls the amplitude of NFIL3 circadian oscillation in intestinal epithelial cells via group 3 ILCs, STAT3, and the epithelial cell circadian clock; NFIL3 in turn regulates a circadian lipid metabolic program controlling lipid absorption and export. |
Germ-free vs. colonized mice, ILC3 depletion, STAT3 inhibition, Nfil3−/− mice, lipid absorption/export assays |
Science (New York, N.Y.) |
High |
28860383
|
| 2017 |
NFIL3 represses hepatic gluconeogenesis by competing with CREB for binding to cAMP response elements in gluconeogenic gene promoters (e.g., Pepck, G6pc); the repression requires the bZIP DNA-binding domain, and hepatic NFIL3 overexpression ameliorates hyperglycemia in insulin-resistant mice. |
ChIP (NFIL3 binding to CRE elements), luciferase reporter with CRE mutations, adenoviral overexpression/knockdown in mice, glucose tolerance tests |
Metabolism: clinical and experimental |
High |
29132537
|
| 2018 |
E4BP4 regulates carboxylesterase 2 (Ces) enzymes by physically interacting with REV-ERBα and antagonizing its trans-repressive activity on Ces2b promoter; E4bp4−/− mice show reduced Ces expression and altered pharmacokinetics of CPT-11. |
Co-immunoprecipitation (E4BP4–REV-ERBα), luciferase reporter, EMSA (REV-ERBα binding site), E4bp4−/− mice, pharmacokinetic study |
Biochemical pharmacology |
High |
29653076
|
| 2018 |
E4BP4 mediates transcriptional inhibition of Bcl6 by recruiting the repressive epigenetic modifiers HDAC1 and EZH2, thereby inhibiting T follicular helper (Tfh) cell differentiation; E4BP4 phosphorylation site mutants cannot inhibit Tfh differentiation. |
Conditional E4bp4 KO and knockin mice, co-IP/ChIP (HDAC1, EZH2 recruitment), phosphorylation mutant analysis, Tfh differentiation assays |
The Journal of clinical investigation |
High |
32191636
|
| 2018 |
E4BP4 interacts with G9a to form a multi-molecular complex that silences SOSTDC1 through G9a-mediated epigenetic modification, thereby regulating hepcidin expression and iron homeostasis in thyroid cancer cells. |
Co-immunoprecipitation (E4BP4–G9a), ChIP, E4BP4/G9a siRNA knockdown, in vivo xenograft |
Cell death & disease |
Medium |
30250199
|
| 2019 |
An Nfil3-Zeb2-Id2 transcriptional circuit is required for cDC1 progenitor development; Nfil3 drives the transition from Zeb2hi/Id2lo CDPs to Zeb2lo/Id2hi committed cDC1 progenitors, enabling the switch in Irf8 enhancer usage from the +41-kb to the +32-kb element. |
Single-cell RNA-seq of CDPs, genetic epistasis (Nfil3, Zeb2, Id2 KO combinations), Irf8 enhancer reporter |
Nature immunology |
High |
31406377
|
| 2019 |
NFIL3 directly binds the PRNP promoter and acts as a transcriptional activator of PrPc expression; NFIL3-driven PrPc upregulation promotes lung cancer cell lamellipodium formation and migration through JNK signaling. |
NFIL3 KD, luciferase reporter with PRNP promoter, ChIP (NFIL3 binding to PRNP promoter), JNK inhibitor, migration/invasion assays |
Oncogene |
Medium |
31477838
|
| 2019 |
NFIL3 directly binds and negatively regulates Foxp3 expression, and induces methylation at Foxp3 regulatory CpG sites, thereby impairing Treg cell function and stability. |
ChIP (NFIL3 binding to Foxp3 locus), bisulfite sequencing for CpG methylation, NFIL3 overexpression in Treg cells, suppression assays in vitro and in vivo |
Experimental & molecular medicine |
Medium |
31311918
|
| 2019 |
E4BP4 directly binds to the Notch1 locus and regulates its expression; SUMOylation and phosphorylation of E4BP4 modulate its activity and NK cell development; brief Notch ligand exposure completely rescues NK cell development from E4bp4−/− progenitors. |
E4BP4 PTM mutants, ChIP (E4BP4 at Notch1 locus), Notch inhibition/rescue experiments, NK cell development assays |
Journal of immunology (Baltimore, Md. : 1950) |
Medium |
29311361
|
| 2020 |
PBX1 directly binds the Nfil3 promoter and upregulates NFIL3 expression to promote NK cell development; knockout of the PBX1 binding site in the Nfil3 promoter reduces NK precursor and NK cell numbers analogously to Nfil3 KO. |
PBX1 conditional KO, ChIP/EMSA (PBX1 binding to Nfil3 promoter), CRISPR deletion of binding site, NK progenitor flow cytometry |
FASEB journal : official publication of the Federation of American Societies for Experimental Biology |
High |
32190943
|
| 2021 |
REV-ERBα and REV-ERBβ directly repress E4bp4 expression in cardiomyocytes; loss of Rev-erbs induces E4BP4, which in turn directly represses Nampt via D-box elements, reducing NAD+ biosynthesis and causing cardiomyopathy. |
Cardiomyocyte-specific Rev-erb double KO mice, ChIP (REV-ERB binding to E4bp4; E4BP4 binding to Nampt), NAD+ measurement, cardiac function assessment |
Nature cardiovascular research |
High |
35036997
|
| 2021 |
mTORC1 mainly promotes E4BP4 expression during early NK cell development, while mTORC2 controls T-bet expression; this differential regulation by the two mTOR complexes coordinates sequential stages of NK cell differentiation. |
CD122-Cre and Ncr1-Cre conditional KO of Raptor (mTORC1) and Rictor (mTORC2), E4BP4/T-bet protein measurement, NK cell stage-specific flow cytometry |
Cell death and differentiation |
Medium |
33462410
|
| 2022 |
NFIL3 directly suppresses NFKBIA transcription, thereby enhancing NF-κB signaling and promoting proliferation and metastasis of triple-negative breast cancer cells. |
ChIP (NFIL3 binding to NFKBIA promoter), luciferase reporter, gain/loss of function, in vivo xenograft, NF-κB activity assays |
Journal of experimental & clinical cancer research : CR |
Medium |
35180863
|
| 2022 |
E4BP4 restrains microglial activation by directly binding a D-box element in the Mapk1/3 promoter and trans-repressing ERK1/2 (Mapk1/3) expression; microglial-specific E4bp4 deletion exacerbates delirium-associated cognitive decline. |
Global and microglial-specific E4bp4 KO, ChIP (E4BP4 at Mapk1/3 promoter), single-cell RNA-seq, LTP measurement, cognitive assays |
Advanced science (Weinheim, Baden-Wurttemberg, Germany) |
High |
35713240
|
| 2023 |
E4BP4 promotes lipid droplet biogenesis and liver steatosis by activating Fsp27 (CIDEC) expression; E4BP4 enhances Fsp27 transactivation by CREBH. E4BP4 is SUMOylated on five lysine residues, and HFD-induced deSUMOylation of E4BP4 activates Fsp27 and lipid droplet formation. |
E4bp4 liver-specific KO and overexpression, Fsp27 rescue, co-IP (E4BP4–CREBH interaction), SUMOylation site mutagenesis, cAMP signaling experiments |
Diabetes |
High |
36508222
|
| 2024 |
Hepatocyte E4BP4 promotes liver fibrosis by stabilizing YAP, which activates OPN (osteopontin) expression; OPN secreted from hepatocytes activates hepatic stellate cells (HSCs). Antibody neutralization or shRNA depletion of OPN abrogates E4BP4-induced HSC activation. |
Hepatocyte-specific E4bp4 KO, medium transfer experiment, RNA-Seq, co-IP (E4BP4–YAP), OPN neutralization, shRNA, in vivo fibrosis model |
Advanced science (Weinheim, Baden-Wurttemberg, Germany) |
High |
39473081
|
| 2017 |
hnRNP A1 binds a specific region of the Nfil3 5'-UTR IRES and regulates cap-independent, IRES-mediated translation of Nfil3 mRNA in a phase-dependent manner; hnRNP A1 knockdown abolishes NFIL3 protein oscillation without affecting mRNA oscillation. |
IRES reporter assay, RNA pulldown of hnRNP A1, hnRNP A1 siRNA knockdown, bioluminescent protein oscillation tracking |
Scientific reports |
Medium |
28220845
|