| 1999 |
The ATP binding activity of MCM6 within the MCM4-MCM6-MCM7 complex is critical for DNA helicase activity of the complex; mutagenesis of conserved ATPase motifs in MCM6 abolished helicase activity, while MCM4 contributes to single-stranded DNA binding. The helicase and ssDNA binding activities of the complex can be separated. |
Expression of mouse MCM4/6/7 in insect cells; Walker A/B ATPase motif mutagenesis; in vitro helicase and ssDNA binding assays |
Molecular and cellular biology |
High |
10567526
|
| 1999 |
Human MCM5 and MCM6 gene transcription is regulated by E2F transcription factor binding to multiple E2F sites in their promoters; mutation of E2F sites in the MCM6 promoter abolished serum-stimulated promoter activity, and forced E2F1 expression induced endogenous MCM6 expression. |
Promoter mutagenesis, luciferase reporter assays, exogenous E2F1 expression in REF52 cells |
Oncogene |
Medium |
10327050
|
| 1999 |
Fission yeast SpMcm6p (encoded by mis5+) associates with chromatin DNA specifically during G1 and S phases, localizes to discrete foci on chromatin at replication origins (ars2004 and ars3002) as shown by chromatin immunoprecipitation, and is loaded onto origins by ORC. |
Cell fractionation, immunostaining of spread nuclei, chromatin immunoprecipitation assay |
Molecular and cellular biology |
High |
10490657
|
| 1997 |
Human MCM6 protein (HsMcm6) undergoes cell-cycle-dependent changes in subcellular localization, peaking at G1/S phase; it exists in two forms (detergent-extractable and nucleus-bound) and co-immunoprecipitates with HsMcm2 and HsMcm7 in vivo, forming a heteromeric complex. |
Immunoprecipitation, subcellular fractionation with NP-40 extraction, cell cycle synchronization and western blotting |
Genes to cells : devoted to molecular & cellular mechanisms |
Medium |
9286856
|
| 1998 |
Human MCM6 protein associates with chromatin as part of a multiprotein complex containing other MCM proteins, as demonstrated by micrococcal nuclease digestion releasing MCM6-containing complexes from chromatin; a fraction of MCM6 also occurs as a monomer on chromatin. |
Micrococcal nuclease digestion of chromatin, western blotting, co-fractionation |
The Journal of biological chemistry |
Medium |
9516426
|
| 2002 |
Mouse Cdt1 directly interacts with MCM6 via the conserved carboxyl-terminal region of Cdt1 (amino acids 407–477); geminin inhibits Cdt1's DNA binding activity (which overlaps with the geminin-binding domain, aa 177–380) but does not directly block the Cdt1–MCM6 interaction domain. |
Yeast two-hybrid analysis, bacterial expression and purification of mouse Cdt1, domain-mapping experiments, DNA-binding assays |
The Journal of biological chemistry |
High |
12192004
|
| 2006 |
Phosphorylation of MCM4 at Thr-19 and Thr-110 by CDK2/CDK1 inactivates the MCM4-MCM6-MCM7 helicase complex; EBV protein kinase (EBV-PK) also phosphorylates MCM6 and additional MCM4 sites to further inhibit helicase activity. Introducing N-terminal MCM4 mutations reduced CDK2/cyclin A inhibition but EBV-PK still inhibited both wild-type and mutant complexes, confirming MCM6 phosphorylation contributes. |
In vitro kinase assays with CDK2/cyclin A and EBV-PK on MCM4-6-7 hexamer; site-directed mutagenesis of MCM4; helicase activity assays |
Journal of virology |
High |
17005684
|
| 2009 |
Budding yeast Mcm6 directly binds to the checkpoint mediator Mrc1 via the 168-aa C-terminal region of Mcm6 and the conserved coiled-coil region of Mrc1; two amino acid substitutions in Mcm6's C-terminal region abolish this interaction and cause a severe defect in DNA replication checkpoint activation specifically in response to MMS-induced stress (but not HU), and the phenotype is suppressed by fusing Mcm6 directly to Mrc1. |
Two-hybrid interaction screen, in vivo co-immunoprecipitation, point mutagenesis, checkpoint assays with MMS and HU, genetic fusion rescue experiment |
Molecular and cellular biology |
High |
19620285
|
| 2010 |
The Mcm6/2 and Mcm5/3 ATPase active sites (defined by Walker B box and arginine finger motifs) contribute to the function of the putative Mcm2/5 'gate' in the Saccharomyces cerevisiae Mcm2-7 hexameric helicase ring; mutational analysis shows these sites modulate overall Mcm2-7 activity differentially. |
Walker B box and arginine finger mutagenesis at individual Mcm2-7 ATPase active sites; in vitro ATPase and helicase activity assays |
Nucleic acids research |
High |
20484375
|
| 2010 |
Chromatin-bound MCM6 (Mcm6*) in G1 phase exists in two distinct populations (low and high) separated by the restriction point; cells with high Mcm6* levels reside in late G1 and cycle with committed phases (S, G2, M), as shown by kinetic serum withdrawal and aphidicolin/mimosine/nocodazole experiments. |
Flow cytometry with Triton X-100 extraction followed by methanol fixation; antibody staining for Mcm6*, PCNA*, DNA content, and mitotic marker; serum starvation/release kinetics |
BMC cell biology |
Medium |
20398392
|
| 2021 |
BLM helicase directly and physically interacts with the N-terminal domain of Mcm6 in G1 phase and switches to the C-terminal Cdt1-binding domain of Mcm6 in S-phase (a third site mediates binding after DNA damage). Disruption of the BLM–Mcm6 S-phase interaction leads to supra-normal DNA replication speed in unperturbed cells (requiring BLM helicase activity), delayed repair of replication-dependent DSBs, and hypersensitivity to DNA damage and replication stress. |
Identification of BLM complex composition during S-phase, direct binding assays with distinct Mcm6 domains, cell-based replication speed assays, DNA damage repair assays, BLM helicase mutant analysis |
Nucleic acids research |
High |
34370039
|
| 2010 |
NMR chemical shift assignments of the Cdt1-binding domain (CBD) of human MCM6 show it adopts a 'winged-helix' fold typical of protein–nucleic acid interaction domains; this domain directly mediates the Cdt1–MCM6 interaction for chromatin loading of the MCM2-7 complex. |
Triple-resonance NMR spectroscopy; chemical shift assignments deposited (BMRB 16396) |
Biomolecular NMR assignments |
Medium |
20623209
|
| 2024 |
SIRT7-mediated lysine crotonylation of MCM6 at K599 (MCM6-K599cr) is upregulated in response to DNA replication stress; this crotonylation is associated with disassembly of the MCM2-7 complex and is regulated by RNF8-mediated ubiquitination of MCM6. |
Western blotting for Kcr marks, MCM6 knockdown proliferation/DNA replication assays, identification of K599 crotonylation site, RNF8 co-expression ubiquitination assays, kaempferol treatment as SIRT7 regulator |
Cell proliferation |
Medium |
39477811
|
| 2024 |
RNF125 E3 ubiquitin ligase interacts with MCM6 and mediates its ubiquitination; co-transfection experiments show RNF125 promotes HCC cell proliferation mainly through MCM6. |
Pull-down assay, co-immunoprecipitation, ubiquitination assay, co-transfection with MCM6 rescue |
Oncology letters |
Medium |
38298426
|
| 2024 |
Avermectin B1a binds to the CDT1-binding domain (CBD) of MCM6 (at residues Glu763, Ile760, Arg771, Glu774), blocking the MCM6–CDT1 interaction and thereby inhibiting DNA replication licensing, causing G0/G1 cell cycle arrest and apoptosis; overexpression of MCM6 or CDT1 reverses these cytotoxic effects. |
Molecular docking, modified ELISA-based binding assay, cell cycle analysis, viability assays, MCM6/CDT1 overexpression rescue |
Environmental pollution |
Medium |
39579921
|
| 2022 |
MCM6 is a direct transcriptional target of the YAP-TEAD complex in gastric cancer; the YAP-TEAD complex binds to the MCM6 promoter to induce transcription. MCM6 in turn activates PI3K/Akt/GSK3β signaling. MCM6 deficiency sensitizes cells to chemo/radiotherapy by causing DNA breaks and blocking ATR/Chk1-mediated DNA damage response. |
RNA sequencing, microarray, chromatin immunoprecipitation PCR (YAP-TEAD binding to MCM6 promoter), luciferase reporter assays, MCM6 knockdown in organoids and xenografts, western blotting for PI3K/Akt/GSK3β and ATR/Chk1 pathway components |
Theranostics |
High |
36185598
|
| 2021 |
MCM6 knockdown in HCC cells promotes EMT and activates MEK/ERK signaling (decreased pERK, decreased EMT markers upon knockdown); MCM6 expression also promotes MEK/ERK-driven migration and invasion in vivo. |
Western blotting for ERK pathway and EMT markers, immunofluorescence staining, subcutaneous and orthotopic xenograft models, wound healing, Transwell assays |
Journal of experimental & clinical cancer research |
Medium |
29357919
|
| 2018 |
MCM6 knockdown in HCC cells causes a delay in S/G2-phase progression accompanied by downregulation of CDK2, CDK4, CyclinA, CyclinB1, CyclinD1, and CyclinE. |
siRNA knockdown, flow cytometry cell cycle analysis, western blotting for cyclins and CDKs |
BMC cancer |
Medium |
29463213
|
| 2023 |
MCM6 promotes ICC (intrahepatic cholangiocarcinoma) progression by upregulating E2F1, which mediates EMT; E2F1 knockdown partially blocked the pro-malignant effects of MCM6 overexpression, placing MCM6 upstream of E2F1 in this pathway. |
GSEA, MCM6 knockdown and overexpression, western blotting and functional assays, E2F1 rescue knockdown experiments, in vivo xenograft |
Carcinogenesis |
Medium |
37185675
|
| 2025 |
MCM6 promotes cisplatin resistance in bladder cancer by enhancing DNA damage repair (DDR); MCM6 knockdown reduced nuclear c-Myc levels and promoted its ubiquitin-mediated degradation, increasing DNA damage. Conversely, c-Myc (as a transcription factor) binds the MCM6 promoter to drive MCM6 transcription, forming a positive feedback loop. |
MCM6 knockdown/overexpression, western blotting for DDR markers and c-Myc, ubiquitination assays, chromatin immunoprecipitation for c-Myc binding to MCM6 promoter, in vivo xenograft cisplatin sensitivity |
International journal of biological macromolecules |
Medium |
39805445
|
| 2023 |
MCM6 interacts with E6AP (UBE3A) ubiquitin ligase (identified by yeast two-hybrid); however, E6AP knockout enhanced ubiquitination of MCM2/4/6, indicating E6AP is not the E3 ubiquitin ligase for these MCM proteins. Ablation of both MCM6 and E6AP synergistically suppressed proliferation and migration of lung adenocarcinoma cells in vitro and in vivo. |
Yeast two-hybrid assay (MCM6–E6AP interaction), ubiquitination assays upon E6AP KO, proliferation/migration assays, nude mouse xenograft models |
FEBS open bio |
Medium |
37454373
|
| 2025 |
Emodepside directly binds to the CDT1-binding domain (CBD) of MCM6 at residues Lys754, Ile760, and Lys770, competitively blocking the MCM6–CDT1 interaction, inhibiting DNA replication licensing, causing G0/G1 cell cycle arrest and apoptosis in human corneal stromal cells. |
Modified ELISA binding assay, drug affinity responsive target stability (DARTS) assay, molecular docking, EdU incorporation assay, cell cycle and apoptosis analysis |
Toxicology |
Medium |
41203057
|
| 2023 |
De novo MCM6 missense variant p.(Cys158Tyr), affecting a zinc-binding cysteine in the MCM6 zinc finger signature, causes defects in both ciliogenesis and cell proliferation in patient-derived fibroblasts, consistent with an essential role of the zinc-binding domain in MCM-complex dimerization and helicase activity induction. |
Trio exome/genome sequencing, patient-derived fibroblast functional assays for ciliogenesis and cell proliferation |
Human genetics |
Medium |
37198333
|
| 2024 |
MCM6 inhibits decidualization of human endometrial stromal cells; MCM6 overexpression promotes G1/S transition and restores proliferation inhibited by E2+P4 treatment via aberrant ERK activation; treatment with ERK agonist Ro 67-7476 restores MCM6 expression, revealing a MCM6/ERK feedback loop that negatively regulates decidualization. |
In vitro decidualization model with E2+P4, MCM6 overexpression, flow cytometry cell cycle analysis, western blotting for ERK pathway, ERK agonist treatment |
Reproductive sciences |
Low |
38347378
|