| 1991 |
Max is a bHLH-Zip protein that specifically associates with c-Myc, N-Myc, and L-Myc via their HLH-Zip domains, and the Myc-Max heterodimer binds DNA in a sequence-specific manner (core CACGTG) under conditions where neither protein alone exhibits appreciable binding; DNA binding requires both the dimerization domain and basic region of c-Myc. |
cDNA expression library screen with c-Myc bHLH-Zip domain as bait; co-immunoprecipitation; EMSA; domain mutagenesis |
Science |
High |
2006410
|
| 1992 |
c-Myc protein is a nuclear phosphoprotein that binds DNA with a consensus sequence PuACCACGTGCTC; purified full-length c-Myc from eukaryotic cells (baculovirus and CHO) exists in two forms: c-Myc alone and a complex with a copurifying 26–29 kDa protein, the latter binding DNA with higher affinity. |
Protein purification to near homogeneity; SELEX (systematic evolution of ligands by exponential enrichment); EMSA |
The Journal of biological chemistry |
High |
1587829
|
| 1992 |
Constitutive c-Myc expression in Rat-1 fibroblasts induces apoptosis; domains of c-Myc required for apoptosis induction overlap with those required for cotransformation, autoregulation, and inhibition of differentiation; higher c-Myc levels increase susceptibility to apoptosis upon serum deprivation, and deregulated c-Myc induces apoptosis at multiple cell cycle points. |
Conditional c-Myc expression in Rat-1 fibroblasts; cell death assays; domain-deletion mutant analysis |
Cell |
High |
1555236
|
| 1990 |
c-Myc protein negatively autoregulates its own gene transcription at the level of transcriptional initiation; the extent of suppression is proportional to cellular c-Myc concentration; autoregulation requires c-Myc protein plus additional trans-acting factors. |
Transient transfection of activated c-myc/v-myc into Rat-1 fibroblasts; run-on transcription assays; dose-response analysis |
The EMBO journal |
High |
2182320
|
| 1993 |
The ornithine decarboxylase (ODC) gene is a direct transcriptional target of c-Myc; c-Myc transactivates ODC through conserved CACGTG repeats in intron 1; transactivation requires neither the leucine zipper of c-Myc nor its HLH domain, suggesting Myc may interact with transcription factors other than Max for ODC regulation. |
Promoter-reporter cotransfection assays; deletion and point mutagenesis of c-myc; heterologous promoter constructs |
Proceedings of the National Academy of Sciences of the United States of America |
High |
8356088
|
| 1993 |
Yin-yang 1 (YY1) binds two sites in the murine c-myc promoter (at −260 and −390 bp from P1) and strongly activates c-myc transcription from both major initiation sites; YY1 is identical to the previously described common factor 1 (CF1) as shown by biochemical, immunological, and recombinant protein analyses. |
Protein purification; immunological cross-reactivity; recombinant YY1 binding assays; cotransfection reporter assays; overexpression in MEL cells measuring endogenous c-myc mRNA |
Molecular and cellular biology |
High |
8246966
|
| 1994 |
c-Myc-induced apoptosis in quiescent mouse fibroblasts is mediated by p53; activation of c-Myc stabilizes p53, and p53-null fibroblasts undergo cell cycle re-entry but not apoptosis upon c-Myc activation, establishing p53 as an epistatic mediator of c-Myc-induced apoptosis. |
Conditional c-Myc activation (MycER fusion) in wild-type vs. p53-null fibroblasts; p53 stabilization Western blot; apoptosis assays |
Science |
High |
8091232
|
| 1995 |
c-Myc is O-GlcNAc glycosylated on serine/threonine residues within or near its N-terminal transcription activation/transformation domain; the modification was demonstrated by lectin binding, glycosidase/glycosyltransferase treatment, and direct sugar characterization on purified recombinant protein. |
Lectin affinity assay; glycosidase/glycosyltransferase treatment; purification from insect and CHO cells; deletion mutant analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
7753821
|
| 1998 |
c-MYC is a transcriptional target of the APC/beta-catenin/Tcf-4 signaling pathway; wild-type APC represses c-MYC expression, and beta-catenin activates it through Tcf-4 binding sites in the c-MYC promoter, explaining c-MYC overexpression in colorectal cancers with APC mutations. |
Reporter assays with Tcf-4 binding site mutants; APC and beta-catenin gain/loss-of-function; endogenous c-MYC mRNA measurement |
Science |
High |
9727977
|
| 1999 |
c-Myc overexpression causes colcemid-treated cells to become polyploid by replicating DNA without chromosomal segregation (uncoupling DNA replication from mitosis), and induces CDK2 activity in a G1-like state; in primary fibroblasts with wild-type p53, this triggers massive apoptosis instead. |
c-Myc overexpression in human and rodent cell lines; colcemid spindle checkpoint assay; flow cytometry; CDK2 kinase assay; primary vs. immortalized fibroblast comparison |
Molecular and cellular biology |
High |
10409725
|
| 2000 |
CDK4 is a direct transcriptional target of c-MYC; c-MYC induces CDK4 mRNA through four conserved c-MYC binding sites in the CDK4 promoter; c-MYC-deficient RAT1 cells show delayed cell-cycle progression and impaired CDK4 induction, which is partially rescued by ectopic CDK4 expression. |
SAGE; promoter analysis with ChIP; c-MYC-deficient cell lines; CDK4 rescue experiments |
Proceedings of the National Academy of Sciences of the United States of America |
High |
10688915
|
| 2001 |
C/EBPalpha directly represses c-Myc transcription through an E2F binding site in the c-Myc promoter; this repression is required for granulocytic differentiation, as stable ectopic c-Myc expression (from a C/EBPalpha-unresponsive promoter) blocks myeloid differentiation. |
Representational difference analysis; oligonucleotide array; promoter deletion/mutation analysis; stable c-Myc overexpression in C/EBPalpha-inducible myeloid cells; differentiation assays |
Molecular and cellular biology |
High |
11340171
|
| 2001 |
c-Myc represses the PDGF beta-receptor by binding NF-Y subunits YB and YC (but not YA) through its Myc homology boxes (not the bHLHZip domain), without displacing NF-Y from DNA; instead, Myc represses NF-YC transactivation activity. |
Co-immunoprecipitation from cotransfected COS-1 cells; GST pulldown with in vitro translated c-Myc; luciferase reporter with CCAAT mutants; GAL4-NF-YC transactivation assay |
Journal of cell science |
High |
11282029
|
| 2001 |
PDGF-induced c-myc expression is Src-dependent and proceeds through Vav2 activation of a Rac-dependent pathway, independently of Ras and the MAP kinase pathway. |
Dominant-negative and constitutively active signaling constructs; Src inhibition; c-myc promoter-reporter assays; epistasis analysis in NIH3T3 cells |
Nature cell biology |
High |
11389443
|
| 2001 |
c-myc is a downstream target of TGF-beta/Smad signaling; Smad3 and E2F-4 directly bind a composite TIE/E2F element in the c-myc promoter; TGF-beta signaling suppresses c-myc transcription by dissociating p300 from E2F-4 without competing for DNA binding. |
EMSA; co-immunoprecipitation; promoter mutation analysis; chromatin-level timing experiments; p300 co-IP |
The Journal of biological chemistry |
High |
11689553
|
| 2002 |
c-Myc can induce DNA damage and reactive oxygen species (ROS) prior to S phase in normal human fibroblasts; deregulated c-Myc partially disables the p53-mediated DNA damage response; antioxidant treatment reduces ROS, DNA damage, and p53 activation, linking c-Myc to genomic instability via oxidative stress. |
Conditional c-Myc activation; comet assay; ROS measurement; gene expression arrays; antioxidant rescue; clonogenic survival |
Molecular cell |
High |
12049739
|
| 2004 |
Fbw7, the substrate recognition subunit of the SCF(Fbw7) ubiquitin ligase, promotes proteasome-dependent c-Myc degradation in vivo and c-Myc ubiquitination in vitro; this interaction and degradation require GSK3-mediated phosphorylation of c-Myc on threonine-58 (T58); T58 is the most frequent site of c-myc mutation in lymphoma. |
In vivo degradation assay; in vitro ubiquitination reconstitution; T58 phospho-mutant analysis; tumor cell line comparison |
Proceedings of the National Academy of Sciences of the United States of America |
High |
15150404
|
| 2005 |
c-Myc directly activates expression of the miR-17-92 cluster (six miRNAs on chromosome 13) by binding to the locus, as shown by chromatin immunoprecipitation; two members of the cluster, miR-17-5p and miR-20a, negatively regulate E2F1 translation, revealing a mechanism by which c-Myc simultaneously activates E2F1 transcription and limits its translation. |
Chromatin immunoprecipitation (ChIP); miRNA overexpression and knockdown; E2F1 protein/mRNA measurement; luciferase reporter assays |
Nature |
High |
15944709
|
| 2004 |
AID (activation-induced cytidine deaminase), the enzyme that initiates immunoglobulin class switch recombination, is essential for c-myc/IgH chromosome translocations in IL6-transgenic mice, directly linking aberrant CSR to oncogenic chromosome translocations. |
AID-knockout mouse model crossed with IL6-transgenic mice; cytogenetic analysis of c-myc/IgH translocations |
Cell |
High |
15315756
|
| 2007 |
c-Myc has a direct, non-transcriptional role in DNA replication initiation: it interacts with pre-replicative complex components, localizes to early DNA synthesis sites, and its depletion from mammalian cells and Xenopus cell-free extracts (devoid of RNA transcription) impairs DNA replication; c-Myc overexpression increases replication origin activity, causing DNA damage and checkpoint activation. |
Co-immunoprecipitation with pre-RC components; DNA fiber assay; Xenopus cell-free replication extracts (transcription-independent); c-Myc depletion (siRNA); origin firing analysis; DNA damage markers |
Nature |
High |
17597761
|
| 2007 |
Ribosomal protein L11 (a c-Myc transcriptional target) forms a negative feedback loop by binding to Myc box II (MBII) of c-Myc, competing with the coactivator TRRAP, and reducing histone H4 acetylation at c-Myc target gene promoters; L11 overexpression inhibits c-Myc transcriptional activity and cell proliferation, while L11 knockdown increases both. |
Co-immunoprecipitation; ChIP; siRNA knockdown; overexpression; histone acetylation assays; cell proliferation assays |
The EMBO journal |
High |
17599065
|
| 2008 |
Pim-1 and Pim-2 kinases stabilize c-Myc protein in vivo; Pim-2 directly phosphorylates c-Myc on Ser329 to stabilize it; Pim-1 preferentially mediates decreased Thr58 phosphorylation and increased Ser62 phosphorylation; both kinases enhance c-Myc transcriptional activity and transforming ability through c-Myc stabilization. |
In vivo co-expression stabilization assays; in vitro kinase assay; phospho-site mutant analysis; transcriptional reporter assays; transformation assays |
Oncogene |
High |
18438430
|
| 2009 |
c-Myc transcriptionally represses miR-23a and miR-23b, resulting in elevated mitochondrial glutaminase expression, thereby upregulating glutamine catabolism in cancer cells; this establishes c-Myc as a regulator of glutamine metabolism through miRNA-mediated control. |
ChIP showing c-Myc binding to miR-23a/b promoters; miRNA overexpression/knockdown; glutaminase protein measurement; metabolic flux assays |
Nature |
High |
19219026
|
| 2009 |
c-Myc upregulates hnRNP proteins (PTB/hnRNPI, hnRNPA1, hnRNPA2) at the transcriptional level, which then bind repressively to sequences flanking PKM exon 9 to promote PKM2 isoform splicing, thereby promoting aerobic glycolysis (Warburg effect) in cancer cells. |
c-Myc ChIP on hnRNP promoters; overexpression/knockdown of hnRNPs; RT-PCR for PKM splicing; RNA-protein binding assays; glioma tissue correlation |
Nature |
High |
20010808
|
| 2010 |
c-Myc regulates RNA Pol II promoter-proximal pause release rather than Pol II recruitment at its target genes; c-Myc is a key regulator of transcriptional pause release in mammalian cells, and this mechanism explains amplification of gene expression by c-Myc. |
ChIP-seq for Pol II and c-Myc; GRO-seq (global run-on sequencing); comparison of Pol II occupancy at promoters vs. gene bodies |
Cell |
High |
20434984
|
| 2010 |
MYC directly binds the promoters of CD47 and PD-L1 genes and activates their transcription; MYC inactivation reduces CD47 and PD-L1 mRNA and protein levels and enhances the antitumor immune response; enforced CD47 or PD-L1 expression rescues tumor growth after MYC inactivation. |
ChIP showing MYC binding to Cd47 and Pd-l1 promoters; conditional MYC inactivation in mouse tumors; rescue experiments with enforced CD47/PD-L1 expression; immune cell analysis |
Science |
High |
26966191
|
| 2012 |
In tumor cells with elevated c-Myc, the transcription factor accumulates at promoters of already-active genes and causes transcriptional amplification—increasing transcript levels from the existing gene expression program rather than activating new target genes. |
ChIP-seq; RNA-seq; GRO-seq; comparison of high vs. low Myc-expressing tumor cells; genome-wide occupancy analysis |
Cell |
High |
23021215
|
| 2013 |
Ribosomal protein S14 (RPS14) binds to the Myc homology box II (MBII) and C-terminal bHLH-LZ domains of c-Myc, inhibits c-Myc transcriptional activity by preventing recruitment of c-Myc and TRRAP to target promoters, and promotes c-Myc mRNA degradation through an Argonaute2/miRNA pathway. |
Co-immunoprecipitation; domain-mapping pulldown; ChIP; siRNA knockdown; RT-qPCR; Argonaute2 epistasis |
The Journal of biological chemistry |
High |
23775087
|
| 2014 |
USP37 is a deubiquitinating enzyme that directly interacts with and deubiquitinates c-Myc in a DUB-activity-dependent manner, stabilizing c-Myc and enhancing cell proliferation and the Warburg effect; USP37 depletion promotes c-Myc proteasomal degradation. |
USP screening; co-immunoprecipitation; in vivo and in vitro deubiquitination assays; catalytic mutant (DUB-inactive) analysis; cell proliferation assays |
Oncogene |
High |
25284584
|
| 2014 |
The lncRNA PCGEM1 physically interacts with c-Myc, promotes its chromatin recruitment, and enhances c-Myc transactivation activity; PCGEM1 regulates multiple metabolic pathways in prostate cancer cells predominantly through c-Myc coactivation. |
RNA immunoprecipitation; co-immunoprecipitation; ChIP; promoter-reporter assays; PCGEM1 domain mapping for c-Myc binding |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
25512540
|
| 2014 |
SerRS (seryl-tRNA synthetase) antagonizes c-Myc at the VEGFA promoter by two mechanisms: (1) direct competition blocking c-Myc from binding the promoter, and (2) recruiting SIRT2 histone deacetylase to erase c-Myc-promoted histone acetylation; nuclear localization of SerRS (conferred by a vertebrate-specific domain) is required for this anti-angiogenic activity. |
In vitro competition assays; ChIP; SIRT2 co-immunoprecipitation; histone acetylation assays; nuclear localization mutants; zebrafish vascular phenotype rescue |
eLife |
High |
24940000
|
| 2014 |
PP2A (protein phosphatase 2A) dephosphorylates c-MYC at Ser62, destabilizing it; PP2A inhibitors SET (I2PP2A) and CIP2A are overexpressed in breast cancer and stabilize c-MYC by preventing PP2A-mediated dephosphorylation of S62; antagonizing SET with OP449 reduces S62 phosphorylation and c-MYC activity. |
PP2A inhibitor knockdown; phospho-specific Western blot for pS62-c-MYC; in vitro and in vivo tumor models; OP449 treatment |
Proceedings of the National Academy of Sciences of the United States of America |
High |
24927563
|
| 2015 |
HBXIP interacts directly with c-Myc through leucine zippers, recruits the lncRNA Hotair as a scaffold, and the Hotair-bound histone demethylase LSD1 mediates c-Myc-dependent transcriptional activation of target genes; silencing HBXIP, Hotair, or LSD1 blocks c-Myc-enhanced cancer cell growth. |
Co-immunoprecipitation; RNA immunoprecipitation; ChIP; siRNA knockdown; in vitro and xenograft tumor growth assays |
Cancer research |
Medium |
26719542
|
| 2016 |
CRY2 functions as a component of an FBXL3-containing E3 ubiquitin ligase that recruits T58-phosphorylated c-MYC for ubiquitylation and degradation; CRY1 cannot substitute for CRY2 in this process; this mechanism provides circadian control of c-MYC protein turnover. |
Co-immunoprecipitation; in vivo ubiquitylation assay; T58 phospho-mutant analysis; CRY1/CRY2 knockout comparison; proteasome inhibitor experiments |
Molecular cell |
High |
27840026
|
| 2016 |
ELL (eleven-nineteen lysine-rich leukaemia) functions as a direct E3 ubiquitin ligase for c-Myc, with UbcH8 as the conjugating enzyme; Cys595 of ELL is the catalytic active site; ELL-mediated c-Myc ubiquitination and degradation inhibits c-Myc transcriptional activity and suppresses tumor growth in xenograft models. |
In vivo ubiquitination assay; active-site mutagenesis (C595A); Co-immunoprecipitation; c-Myc reporter assays; xenograft tumor growth |
Nature communications |
High |
27009366
|
| 2018 |
SENP1 is a c-Myc deSUMOylating enzyme: it interacts with c-Myc, deSUMOylates it in cells and in vitro, and stabilizes it; catalytically inactive SENP1(C603S) cannot stabilize c-Myc; SENP1-mediated deSUMOylation reduces c-Myc polyubiquitination (SUMOylation promotes degradation) while promoting monoubiquitination and pS62/pT58 phosphorylation. |
Co-immunoprecipitation; in vitro deSUMOylation assay; catalytic mutant (C603S); ubiquitination assay; phospho-specific Western blot; cell cycle analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
30305424
|
| 2018 |
Eya3 co-opts the PP2A-B55α holoenzyme (its Ser/Thr phosphatase activity is not intrinsic to Eya3 but arises from interaction with PP2A-B55α) to dephosphorylate pT58 on c-Myc, stabilizing c-Myc; this opposes the canonical PP2A-B56α-mediated dephosphorylation of pS62 that destabilizes c-Myc. |
Co-immunoprecipitation of PP2A-B55α with Eya3; phosphatase assay; phospho-specific Western blot (pT58 vs pS62); c-Myc stability assay; xenograft metastasis model |
Nature communications |
High |
29535359
|
| 2009 |
c-Myc overexpression in primary human fibroblasts markedly accelerates S-phase; WRN (Werner helicase) is required to support c-Myc-driven S-phase, as WRN depletion in c-Myc-overexpressing cells increases DNA damage at replication sites and activates an ATR-CHK1-CHK2-p53 'replication stress' pathway, leading to rapid senescence; p53 depletion rescues senescence. |
BrdU pulse-chase S-phase kinetics; c-Myc overexpression; WRN siRNA; DNA damage markers (γH2AX); ATR/CHK1/CHK2/p53 pathway analysis; senescence assay |
PloS one |
High |
19554081
|
| 2009 |
p53 represses c-Myc post-transcriptionally by transcriptionally inducing miR-145 (via a p53 response element in the miR-145 promoter); miR-145 directly targets c-Myc mRNA; blockade of miR-145 reverses p53-mediated c-Myc repression. |
Promoter-reporter assay with p53 RE; miR-145 overexpression/anti-miR; 3'UTR luciferase reporter for c-Myc targeting; in vitro and in vivo tumor growth assays |
Proceedings of the National Academy of Sciences of the United States of America |
High |
19202062
|
| 2001 |
Deregulated c-Myc expression in keratinocytes (K14.MYC2 transgenic mice) reduces beta1 integrin expression and depletes epidermal stem cells by 75%, impairing wound healing and keratinocyte migration; beta1 integrin is essential for both keratinocyte migration and stem cell maintenance. |
K14.MYC2 transgenic mouse model; label-retaining cell analysis for stem cells; beta1 integrin immunostaining; wound healing assays |
Nature genetics |
High |
11381265
|
| 2024 |
USP43 stabilizes c-Myc by deubiquitinating it specifically at K148 and K289 through its deubiquitinase activity; USP43 competes with FBXW7 for c-Myc binding; USP43/c-Myc form a positive feedback loop in bladder cancer promoting glycolysis and metastasis. |
siRNA DUB library screen; co-immunoprecipitation; in vivo deubiquitination assay with lysine-specific mutants; FBXW7 competition assay; metabolic assays |
Cell death & disease |
High |
38218970
|
| 2007 |
Myc broadly represses miRNA expression by directly binding miRNA promoters (ChIP), providing a widespread reprogramming of the miRNA transcriptome that contributes to B-cell lymphomagenesis; enforced expression of Myc-repressed miRNAs diminishes tumorigenic potential of lymphoma cells. |
Genome-wide ChIP for Myc at miRNA loci; miRNA profiling in human and mouse B-cell lymphoma models; miRNA overexpression functional assays |
Nature genetics |
High |
18066065
|
| 2010 |
MYC and MYCN directly bind the mir-9-3 locus and activate miR-9 expression; miR-9 targets CDH1 (E-cadherin) mRNA, promoting cell motility and invasiveness; miR-9-mediated E-cadherin loss activates beta-catenin signaling, increasing VEGF expression and angiogenesis. |
ChIP for MYC/MYCN at mir-9-3 locus; miR-9 overexpression; 3'UTR luciferase reporter for CDH1; metastasis mouse model; sponge inhibition |
Nature cell biology |
High |
20173740
|
| 2006 |
Endogenous c-Myc and Max protein-protein interactions can be directly visualized and quantified at single-molecule resolution in individual cells using proximity ligation; IFN-gamma signaling and small-molecule inhibitors (10058-F4) specifically regulate these interactions in situ. |
Proximity ligation assay (PLA) with antibodies against endogenous Myc and Max; rolling-circle amplification for single-molecule detection; quantification in response to IFN-gamma and small molecule inhibitors |
Nature methods |
High |
17072308
|
| 2008 |
The small molecule 10058-F4 binds disordered c-Myc monomers and disrupts c-Myc-Max heterodimerization; the inhibitory effect depends on the Max isoform: p22 Max (which homodimerizes well) competes with c-Myc-Max heterodimerization, lowering the effective inhibitor concentration needed compared to p21 Max. |
Biophysical binding assays; EMSA for DNA binding; thermodynamic analysis of heterodimerization vs. homodimerization |
Bioorganic & medicinal chemistry letters |
Medium |
19114306
|
| 2009 |
The ASK1-JNK pathway promotes c-Myc protein stability through phosphorylation at Ser62 and Ser71, which is required for c-Myc-dependent apoptosis; ASK1 signaling attenuates degradation of already-ubiquitinated c-Myc without affecting the ubiquitination process itself. |
ASK1 overexpression; phospho-site mutant c-Myc constructs (Ser62, Ser71); ubiquitination assay; proteasome inhibitor analysis; apoptosis assays |
Biochemical and biophysical research communications |
Medium |
11243879
|
| 2009 |
c-Myc overexpression accelerates S-phase, and c-Myc-deficient fibroblasts exhibit prolonged S-phase; WRN helicase depletion in c-Myc-overexpressing cells causes DNA damage at active replication forks and activates ATR-CHK1-CHK2-p53 senescence pathway, suggesting WRN repairs aberrant replication structures caused by c-Myc-driven accelerated replication. |
BrdU pulse-chase S-phase kinetics; c-Myc overexpression and knockout fibroblasts; WRN siRNA; DNA damage markers at replication sites; senescence assay; p53 knockdown rescue |
PloS one |
High |
19554081
|