| 1993 |
NFATp (NFATC2) is a DNA-binding phosphoprotein that is a direct substrate for the phosphatase calcineurin in vitro, and forms a ternary complex with Fos and Jun proteins on composite DNA elements; the DNA-binding domains of Fos and Jun are required for NFATp-Fos-Jun-DNA complex formation. |
In vitro calcineurin phosphatase assay with purified NFATp; recombinant protein DNA-binding assays with Fos/Jun; mutagenesis of Fos/Jun DNA-binding domains |
Nature |
High |
8397339
|
| 1993 |
NFATp is the DNA-binding subunit of the NFAT transcription complex; a recombinant truncated form binds specifically to the NFAT site of the murine IL-2 promoter and forms a transcriptionally active complex. |
Protein purification from murine T cells; cDNA cloning; recombinant protein DNA-binding assay; reporter transcription assay |
Science |
High |
8235597
|
| 1995 |
Phosphorylation of NFATp inhibits its DNA-binding activity and its ability to form an NFAT complex with Fos and Jun; dephosphorylation by calcineurin or alkaline phosphatase in vitro restores DNA binding and complex formation with Fos/Jun. |
Immunoblot, 32P metabolic labeling, in vitro calcineurin/alkaline phosphatase treatment, EMSA |
The Journal of biological chemistry |
High |
7657645
|
| 1995 |
NFATp undergoes calcineurin-dependent dephosphorylation and nuclear translocation upon ionomycin stimulation in T cells; immunoprecipitated NFATp from unstimulated cells is dephosphorylated by calcineurin in vitro, confirming it is an in vitro calcineurin substrate. |
Subcellular fractionation, Western blot, immunoprecipitation, 32P labeling, in vitro calcineurin dephosphorylation assay, FK506 inhibition |
The Journal of biological chemistry |
High |
7545680
|
| 1996 |
NFAT1 (NFATp/NFATC2) directly interacts with calcineurin through an N-terminal region conserved among NFAT family members; both phosphorylated and dephosphorylated forms of NFATp bind calcineurin, and this binding is blocked by the FK506-FKBP12 complex. |
Pulldown of NFATp from T cell lysates on immobilized calcineurin; inhibition with FK506-FKBP12 complex |
The Journal of biological chemistry |
High |
8576111 8631904
|
| 1996 |
Calcineurin activity levels directly control the activation state of NFAT1: cessation of calcium signaling (EGTA, ionomycin removal) or addition of cyclosporin A causes rapid rephosphorylation of NFAT1 and its re-export to the cytoplasm, reversing nuclear accumulation and DNA binding. |
Subcellular fractionation, Western blot, cyclosporin A/EGTA/ionomycin pharmacological manipulation in T cells |
The Journal of biological chemistry |
High |
8631904
|
| 1994 |
NFATp binds to two sites within the κ3 element of the TNF-α promoter, and occupancy of both sites is required for calcium-stimulated, cyclosporin A-sensitive TNF-α gene induction in T cells. |
EMSA, promoter-reporter assays, cyclosporin A inhibition, site mutagenesis |
The Journal of biological chemistry |
High |
7982959
|
| 1996 |
NFATp cooperates with ATF-2/Jun bound to an adjacent CRE site for TNF-α gene transcription in T cells; ATF-2 and Jun bind noncooperatively with NFATp in vitro, but the composite CRE/κ3 site shows dramatically higher transcriptional activity than κ3 alone, indicating in vivo cooperation. |
EMSA, promoter-reporter assays, T cell stimulation |
Molecular and cellular biology |
High |
8552071
|
| 1995 |
On the GM-CSF enhancer composite elements, NFATp and AP-1 bind cooperatively, and this cooperativity requires a specific spacing (9 bp) between GGA and TCA motifs; a site with 15 bp spacing supports strong independent but no cooperative binding of AP-1 and NFATp and functions poorly as an enhancer. |
EMSA, methylation interference, DNase footprinting, reporter assays |
Molecular and cellular biology |
High |
7891702
|
| 1995 |
In the cooperative NFAT-AP-1 complex on the IL-2 ARRE2 element, AP-1 (Fos-Jun) adopts a single orientation (Jun proximal, Fos distal to NFATp) through protein-protein contacts; in solution AP-1 binds as a mixture of orientational isomers, but NFATp locks a single orientation. |
Affinity cleaving experiments, protein cross-linking, EMSA |
Current biology |
High |
7583146
|
| 1995 |
The vitamin D receptor (VDR) directly competes with NFATp/AP-1 complex formation at the NF-AT-1 element of the IL-2 promoter; VDR-RXR heterodimer blocks NFATp/AP-1 complex formation and stably associates with the NF-AT-1 element; VDR DNA-binding is necessary but not sufficient for repression. |
In vitro competition assays with partially purified proteins, order-of-addition and off-rate experiments, cotransfection reporter assays, VDR DNA-binding domain mutants |
Molecular and cellular biology |
High |
7565732
|
| 1999 |
VDR competes with NFAT1 for binding to the GM-CSF NFAT-AP-1 composite site; overexpression of NFAT1 relieves VDR-dependent repression; VDR also directly interacts with c-Jun (demonstrated by GST coprecipitation) and stabilizes Jun-Fos binding adjacent to the NFAT1 binding site, providing a two-hit inhibitory mechanism. |
Transient transfection reporter assays, EMSA competition, GST coprecipitation, FLAG-VDR immunoprecipitation from nuclear extracts |
Molecular and cellular biology |
High |
10330159
|
| 1996 |
TCR stimulation leads to rapid (<minutes) calcineurin-dependent dephosphorylation, nuclear translocation, and increased DNA binding of NFAT1, followed hours later by phorbol ester-facilitated rephosphorylation and cytoplasmic re-export; late deactivation is facilitated by PKC-dependent pathways and inhibitors of capacitative calcium entry. |
Subcellular fractionation, EMSA, Western blot, pharmacological inhibition (cyclosporin A, PMA, ionomycin, EGTA) |
Molecular and cellular biology |
High |
8668212
|
| 2000 |
p38 MAPK phosphorylates NFATp in vitro and interacts with NFATp in vivo; activation of p38 (via MKK6) counteracts calcium-induced nuclear accumulation of NFATp (but not NFATc) and inhibits NFATp-driven transcription; p38-mediated nuclear export of NFATp is CRM1-dependent (Leptomycin B-sensitive). |
In vitro kinase assay, co-immunoprecipitation, cotransfection with activated MKK6/p38, nuclear/cytoplasmic fractionation, Leptomycin B treatment |
The Journal of biological chemistry |
High |
10788511
|
| 2003 |
Crystal structure of NFAT1 (NFATC2) bound as a dimer to the HIV-1 LTR κB element reveals a novel asymmetric dimerization mode through the C-terminal Rel homology subdomain, distinct from other Rel family dimers; both N- and C-terminal subdomains form protein-protein contacts encircling the DNA. |
X-ray crystallography |
Nature structural biology |
High |
12949493
|
| 1998 |
NFAT1 induces cooperative DNA bending at the ARRE2 site in the NFAT1-Fos-Jun ternary complex that differs from the sum of individual bends; NFAT1 interaction with the Fos-Jun leucine zipper (specifically three N-terminal residues) can reverse the orientation of Fos-Jun heterodimer binding on DNA. |
Gel electrophoretic phasing analysis, fluorescence resonance energy transfer (FRET) orientation assay, mutagenesis of Fos/Jun leucine zippers |
Proceedings of the National Academy of Sciences of the United States of America |
High |
9653115
|
| 2008 |
NFATp dimerization on the TNF promoter NFAT-bZIP element creates a dimer-specific function: the NFATp dimer and its bZIP partner bind noncooperatively to this element, whereas a monomer recruits bZIP cooperatively; NFATp dimer-specific activation subdomains interact with the coactivator CBP and are required for transcriptional activation from the TNF element. |
Consensus binding site determination, DNase footprinting, transcriptional reporter assays, coactivator interaction assays |
Proceedings of the National Academy of Sciences of the United States of America |
High |
19060202
|
| 2001 |
NFATC2 is required intrinsically for skeletal muscle cell growth: NFATC2-null primary myotubes show reduced size and myonuclear number; retroviral re-expression of NFATC2 rescues these defects; NFATC2 controls a second phase of myoblast fusion (nuclear accretion) after initial myotube formation. |
NFATC2 knockout mouse analysis, primary muscle cell culture, retroviral rescue, morphometric measurement of myotube size and nuclear number |
The Journal of cell biology |
High |
11309414
|
| 2003 |
Prostaglandin F2α (PGF2α) stimulates skeletal muscle cell growth through the FP receptor and requires NFATC2 activation: PGF2α activates NFAT, and NFATC2-null myotubes fail to grow or accrue nuclei in response to PGF2α, identifying the first intersection between prostaglandin receptor signaling and NFAT. |
PGF2α/analogue treatment of primary muscle cultures, NFAT reporter assay, NFATC2 knockout myotubes, nuclear accretion counts |
The Journal of cell biology |
High |
12695501
|
| 2000 |
NFATp (NFATC2) functions as a repressor of chondrogenesis in vivo: mice lacking NFATp spontaneously develop cartilage from extraarticular connective tissue, and NFATp overexpression in cartilage cell lines extinguishes the cartilage phenotype; NFATp expression is regulated during mesenchymal stem cell chondrogenic differentiation. |
NFATp knockout mouse histology, overexpression in chondrocyte cell lines, cartilage marker expression analysis |
The Journal of experimental medicine |
High |
10620601
|
| 2002 |
NFATc2 negatively regulates CDK4 expression by binding a canonical NFAT site in the CDK4 promoter in a calcium-sensitive, FK506/CsA-sensitive, and histone deacetylase-sensitive manner; ectopic NFATc2 inhibits CDK4 promoter activity; calcineurin Aα−/− and NFATc2−/− mice have elevated CDK4 protein levels. |
Promoter-reporter assays, pharmacological inhibition (FK506, CsA, HDAC inhibitors), NFATc2 overexpression, Western blot of CDK4 in KO mice |
Molecular cell |
High |
12453415
|
| 2002 |
IL-6 upregulates NFATc2 protein levels in CD4+ T cells, increasing NFAT transcriptional activity, which drives IL-4 production; CD4+ T cells lacking NFATc2 fail to produce IL-4 in response to IL-6, preventing Th2 differentiation. |
NFATc2 knockout CD4+ T cells, IL-6 stimulation, IL-4 ELISA, NFAT transcriptional reporter, cyclosporin A inhibition |
The Journal of experimental medicine |
High |
12093869
|
| 2002 |
NFAT1 (NFATc2) and NFAT2 are both positive regulators of IL-4 gene transcription when constitutively active (Ala substitution) forms are expressed; the disparate knockout phenotypes reflect differential regulation of the two proteins rather than intrinsic differences in DNA binding or transcriptional activity at the IL-4 locus. |
Constitutively active (phospho-Ser→Ala) mutant NFAT overexpression, IL-4 reporter and secretion assays |
European journal of immunology |
Medium |
12355451
|
| 2005 |
NFATc2 directly binds the IL-21 proximal promoter and activates its transcription in Th2 cells; T-bet represses IL-21 transcription in Th1 cells by inhibiting NFATc2 binding to the IL-21 promoter. |
Promoter-reporter assays, chromatin immunoprecipitation (ChIP), EMSA, T-bet overexpression/NFATc2 competition |
Proceedings of the National Academy of Sciences of the United States of America |
High |
15684054
|
| 2009 |
GSK-3β mediates inhibition of NFAT (including NFAT1) activity downstream of Akt1; GSK-3β-dependent NFAT inhibition leads to proteasomal degradation of NFAT and blocks breast cancer cell migration; GSK-3β mutants unresponsive to Akt reveal that Akt-mediated inhibition of migration is mediated through GSK-3β. |
GSK-3β shRNA and selective inhibitor, GSK-3β mutants unresponsive to Akt, NFAT reporter, proteasome inhibitor assays, migration assay |
Molecular cancer research |
Medium |
19258413
|
| 2011 |
NFATc2 in pancreatic cancer cells targets the p15(INK4b) promoter and induces heterochromatin formation through sequential recruitment of histone methyltransferase Suv39H1, H3K9 trimethylation, and HP1γ docking; inactivation of NFATc2 disrupts this repressor complex, restoring p15(INK4b) expression and inhibiting cancer growth. |
ChIP, co-immunoprecipitation, DNA pulldown, reporter assays, xenograft tumor models, H3K9me3 ChIP |
Gastroenterology |
High |
22079596
|
| 2012 |
NFAT1 (NFATC2) directly binds the mdm2 P2 promoter in vitro and in vivo and upregulates MDM2 transcription; enforced NFAT1 expression elevates MDM2 protein and reduces p53 function after DNA damage. |
EMSA, ChIP, reporter assays, NFAT1 overexpression, Western blot |
The Journal of biological chemistry |
High |
22787160
|
| 2012 |
VRK2 directly interacts with and phosphorylates NFAT1 at Ser-32 within its N-terminal transactivation domain; this phosphorylation by VRK2 increases NFAT1-dependent transcription and COX-2 expression through the NFAT1 binding site in the COX-2 promoter, promoting tumor cell invasion. |
In vitro kinase assay, co-immunoprecipitation, luciferase reporter with COX-2 promoter, VRK2 RNAi, invasion assay |
The Journal of biological chemistry |
High |
23105117
|
| 2016 |
LRRK2 kinase selectively phosphorylates NFATc2 and induces its nuclear translocation in microglia; α-synuclein activates LRRK2, which phosphorylates NFATc2 to drive neuroinflammatory TNF-α and IL-6 expression; genetic or pharmacological LRRK2 inhibition reduces NFATc2 nuclear translocation and microglial neurotoxicity. |
Primary mouse microglia cultures, LRRK2 genetic knockout/pharmacological inhibition, nuclear fractionation, cytokine ELISA, in vivo synucleinopathy mouse model |
Science translational medicine |
High |
33055242
|
| 2016 |
GSK-3β phosphorylates NFATc2 at SP2 motif to stabilize NFATc2 protein in the nucleus of pancreatic cancer cells; additionally, GSK-3β maintains NFATc2 activation through stabilization of NFATc2-STAT3 complexes via GSK-3β-mediated STAT3 phosphorylation at Y705, stimulating euchromatin formation at NFATc2 target promoters such as CDK6. |
Co-immunoprecipitation, ChIP, reporter assay, GSK-3β inhibition/activation, xenograft and GEMM models |
Molecular cancer therapeutics |
High |
26823495
|
| 2016 |
NFAT1 (NFATC2) directly regulates IL8 and MMP3 transcription in melanoma cells to promote tumor growth and lung metastasis; silencing NFAT1 reduces IL8 and MMP3 expression, and restoration rescues expression to baseline; both genes are validated as direct transcriptional targets by rescue experiments. |
NFAT1 stable silencing, microarray, qRT-PCR, overexpression rescue, in vivo xenograft/metastasis assay |
Cancer research |
Medium |
27013197
|
| 2010 |
NFATc2 directly binds two NFAT-binding sites in the 5'-flanking region of the mouse Ccr9 gene and cooperates with the RAR/RXR complex bound to an adjacent RA response element half-site to drive CCR9 expression; NFATc2 enhances RARα binding to the RA response element; NFATc1, though it also binds the same sites and RARα/RXRα, inhibits NFATc2-dependent promoter activity. |
Reporter assays, DNA-affinity precipitation, direct protein interaction assay, murine naive CD4+ T cells, cyclosporin A inhibition |
Journal of immunology |
High |
21148038
|
| 2021 |
NFATC2 induces β cell proliferation and activates ~2200 transcriptional targets in human islets; NFATC2 response elements in the SOX2 3' enhancer and ALDH1A1 5' enhancer are identified; NFATC2 induces Nr4a1, which is required for much of the proliferative effect; FOXP family transcription factors cooperate with NFATC2 to regulate β cell proliferation. |
Active NFATC2 expression in human islets, RNA-seq, ChIP-seq, FOXP1/2/4 triple KO islets, Nr4a1 deletion, ATAC-seq |
The Journal of clinical investigation |
High |
34491912
|
| 2014 |
NFATc2 mediates epigenetic modification of DC cytokine and chemokine gene loci in response to dectin-1 stimulation; genome-wide NFATc2 binding (ChIP-seq) reveals occupancy at cytokine/chemokine loci, and NFATc2 binding is required to induce the H3K4me3 activating histone mark at these loci. |
ChIP-seq for NFATc2 genome-wide binding, H3K4me3 ChIP, gene expression profiling, dectin-1 stimulation of DCs |
Nucleic acids research |
High |
25550437
|
| 2022 |
Dapl1 restrains NFATc2 activation in CD8+ T cells; Dapl1 deficiency enhances NFATc2 activation, improving effector function and preventing exhaustion; exhausted CD8+ T cells display attenuated NFATc2 activation due to Tim3-mediated feedback inhibition, which Dapl1 deletion rescues. |
Dapl1 KO mice, T cell adoptive transfer, NFATc2 reporter/activation assay, Tim3 feedback inhibition analysis, tumor models |
Nature cell biology |
High |
35773432
|
| 2017 |
NFATc2 binds the 3' enhancer region of SOX2, coupling NFATc2/SOX2 to upregulate ALDH1A1 via its 5' enhancer; this NFATc2/SOX2/ALDH1A1 axis attenuates oxidative stress from cancer drug treatment, promoting drug resistance in lung cancer tumor-initiating cells. |
NFATc2 KD/OE, reporter assays, ChIP for NFATc2 binding to SOX2 and ALDH1A1 enhancers, sphere formation and in vivo tumorigenesis assays |
eLife |
Medium |
28737489
|
| 2020 |
NFAT1 directly binds the MMP-9 promoter in melanoma cells and drives MMP-9 expression; CD147 activates NFAT1 via the intracellular Ca2+-calcineurin pathway; knockdown of NFAT1 suppresses melanoma metastasis in an NFAT1-dependent manner; CD147 knockdown reduces NFAT1-MMP-9 promoter binding. |
Luciferase reporter with MMP-9 promoter, ChIP for NFAT1 at MMP-9 promoter, siRNA knockdown, Ca2+ signaling assays |
Pigment cell & melanoma research |
Medium |
32339381
|
| 2021 |
FGF19/FGFR4 signaling activates store-operated Ca2+ entry (SOCE) via PLCγ and ERK1/2 pathways, which activates calcineurin and promotes NFATc2 nuclear translocation; nuclear NFATc2 transcriptionally activates stemness genes (NANOG, OCT4, SOX2) and FGF19 itself, creating a positive feedback loop sustaining liver cancer stem cell self-renewal. |
Ca2+ imaging, calcineurin activity assay, NFATc2 nuclear fractionation, ChIP for NFATc2 at stemness gene promoters, sphere assays, FGFR4 knockdown/overexpression |
Theranostics |
Medium |
33754043
|
| 2016 |
NFAT1 (NFATc2) directly binds to and activates the IL8 gene promoter in breast cancer cells, leading to IL8 secretion that promotes primary human neutrophil migration; NFAT1-mediated IL8 production is stimulated by thapsigargin and suppresses nascent tumor growth by a non-cell-autonomous mechanism. |
ChIP for NFAT1 at IL8 promoter, NFAT reporter, thapsigargin stimulation, neutrophil migration assay, xenograft tumor growth |
Molecular oncology |
Medium |
25735562
|
| 2015 |
NFATc2 controls melanoma dedifferentiation by inducing expression of membrane-bound TNF-α (mTNF-α), which then regulates a c-Myc–Brn2 axis to suppress MITF and maintain a dedifferentiated state; NFATc2 silencing upregulates MITF, melanocyte differentiation antigens, and pigmentation. |
siRNA and shRNA silencing, NFATc2 inhibitor, TNF-α neutralization, c-Myc inhibition, Brn2 silencing, FACS, cytolytic T cell assay |
Oncogene |
Medium |
26387540
|
| 2022 |
NFAT1 is upregulated in spinal microglia after nerve ligation via TET2-mediated DNA demethylation; NFAT1 directly binds promoters of Itgam, Tnf, Il-1b, and c-Myc in the spinal cord; NFAT1 promotes microglial proliferation through c-MYC; microglia-specific deletion of Nfat1 attenuates neuropathic pain. |
Microglia-specific Nfat1 KO mice, ChIP for NFAT1 binding, c-MYC overexpression, intrathecal siRNA injection, TET2/DNA methylation analysis |
Advanced science |
Medium |
35892263
|
| 2012 |
NFAT1 physically interacts with Stat5 through Stat5's DNA-binding and transactivation domains; ectopic NFAT1 inhibits Stat5 transactivation, Stat5-mediated transcription, and Stat5a binding to its target promoter; conversely, Stat5 inhibits NFAT1 signaling, establishing mutual negative cross-talk. |
Co-immunoprecipitation, luciferase reporter, ChIP for Stat5a, NFAT1 overexpression and RNAi, VIVIT (NFAT inhibitor) treatment |
Molecular endocrinology |
Medium |
21964595
|
| 2006 |
NFAT1 is required for B cell clonal anergy: NFAT1-deficient mice crossed with anti-lysozyme Ig transgenic/soluble lysozyme double transgenic mice show relief of B cell anergy, demonstrating that NFAT1 mediates peripheral B cell tolerance to self-antigen. |
NFAT1 KO mice crossed with double-transgenic anergy model, serum antibody levels, B cell numbers, proliferation assays |
Journal of immunology |
Medium |
16849457
|
| 2012 |
NFAT1 mediates the induction of anergy-associated genes in CD4+ T cells in response to cancer antigen stimulation without costimulation; NFAT1-deficient antigen-specific CD4+ T cells show blunted anergy induction and enhanced anti-tumor responses in a murine melanoma model. |
NFAT1 KO mouse melanoma model, antigen-specific CD4+ T cell cytokine assays, NFAT1-deficient T cell transfer |
Cancer research |
Medium |
22865456
|
| 2016 |
NFATc2 and NFKB1/RELA directly bind a core regulatory element (CRE, -540/-80 bp from TSS) in the Ets1 promoter to trans-activate Ets1 transcription in metastatic breast cancer cells; CRISPR/Cas9 deletion of the CRE reduces Ets1 expression and tumor invasiveness-related gene programs. |
ChIP for NFATc2 and NFKB1/RELA at Ets1 CRE, EMSA, CRISPR/Cas9 CRE deletion, reporter assays |
Oncogenesis |
Medium |
30467308
|
| 2004 |
IL-15 specifically recruits NFAT1 (but not NFAT2) to the κB-like NFAT site in the CX3CR1 promoter to repress CX3CR1 expression, while IL-2 recruits NFAT2 to activate CX3CR1; NFAT1-deficient mice fail to show IL-15-dependent CX3CR1 downregulation. |
ChIP for NFAT1/NFAT2 at CX3CR1 promoter, NFAT1 KO mice, NFAT inhibitors (CsA, VIVIT), mutation of κB-NFAT site, reporter assays |
The Journal of biological chemistry |
High |
15347678
|