- EMDB-17449: S. cerevisiae nexus-sCMGE after DNA replication initiation -
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Basic information
Entry
Database: EMDB / ID: EMD-17449
Title
S. cerevisiae nexus-sCMGE after DNA replication initiation
Map data
EM map of nexus-sCMGE
Sample
Complex: Complex of Mcm2-7, Cdc45, GINS (Psf1-3, Sld5) DNA polymerase epsilon (subunit A and B), 19-mer DNA molecule with complementary 7-mer DNA molecule
Complex: DNA replication complex GINS containing Psf1, Psf2, Psf3 and Sld5
Protein or peptide: x 4 types
Complex: DNA replication licensing factors MCM2-7
Protein or peptide: x 6 types
Complex: DNA polymerase epsilon contains catalytic subunit A and non-catalytic subunit B
Protein or peptide: x 2 types
Complex: DNA
DNA: x 2 types
Complex: Cdc45
Protein or peptide: x 1 types
Ligand: x 4 types
Keywords
Saccharomyces cerevisiae / helicase / CMGE / initiation of DNA replication / DNA / DNA unwinding / REPLICATION
Function / homology
Function and homology information
DNA-templated DNA replication maintenance of fidelity / gene conversion / Unwinding of DNA / DNA replication initiation / epsilon DNA polymerase complex / MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / DNA strand elongation involved in mitotic DNA replication / GINS complex ...DNA-templated DNA replication maintenance of fidelity / gene conversion / Unwinding of DNA / DNA replication initiation / epsilon DNA polymerase complex / MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / DNA strand elongation involved in mitotic DNA replication / GINS complex / MCM complex binding / mitotic DNA replication preinitiation complex assembly / nuclear DNA replication / premeiotic DNA replication / replication fork protection complex / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / SUMO binding / nucleotide-excision repair, DNA gap filling / mitotic DNA replication / Activation of the pre-replicative complex / CMG complex / nuclear pre-replicative complex / DNA replication proofreading / Termination of translesion DNA synthesis / Activation of ATR in response to replication stress / DNA replication preinitiation complex / single-stranded DNA 3'-5' DNA exonuclease activity / MCM complex / mitotic DNA replication checkpoint signaling / double-strand break repair via break-induced replication / mitotic DNA replication initiation / single-stranded DNA helicase activity / mitotic intra-S DNA damage checkpoint signaling / regulation of DNA-templated DNA replication initiation / silent mating-type cassette heterochromatin formation / Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters / mitotic sister chromatid cohesion / DNA strand elongation involved in DNA replication / leading strand elongation / nuclear replication fork / DNA replication origin binding / Dual incision in TC-NER / DNA replication initiation / error-prone translesion synthesis / subtelomeric heterochromatin formation / base-excision repair, gap-filling / DNA helicase activity / replication fork / transcription elongation by RNA polymerase II / helicase activity / base-excision repair / double-strand break repair via nonhomologous end joining / DNA-templated DNA replication / heterochromatin formation / double-strand break repair / mitotic cell cycle / single-stranded DNA binding / 4 iron, 4 sulfur cluster binding / double-stranded DNA binding / DNA helicase / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / chromosome, telomeric region / DNA replication / nucleotide binding / mRNA binding / DNA damage response / chromatin binding / ATP hydrolysis activity / DNA binding / zinc ion binding / nucleoplasm / ATP binding / nucleus / cytoplasm Similarity search - Function
DNA polymerase epsilon, subunit B / : / : / DNA polymerase epsilon catalytic subunit A, thumb domain / Zinc finger domain of DNA polymerase-epsilon / : / : / PSF1 C-terminal domain / PSF2 N-terminal domain / DNA polymerase epsilon, catalytic subunit A, C-terminal ...DNA polymerase epsilon, subunit B / : / : / DNA polymerase epsilon catalytic subunit A, thumb domain / Zinc finger domain of DNA polymerase-epsilon / : / : / PSF1 C-terminal domain / PSF2 N-terminal domain / DNA polymerase epsilon, catalytic subunit A, C-terminal / DNA polymerase epsilon catalytic subunit / Domain of unknown function (DUF1744) / DUF1744 / : / PSF3 N-terminal domain / CDC45 family / DNA replication complex GINS protein Psf2 / CDC45 / GINS complex, subunit Psf3 / DNA replication complex GINS protein SLD5, C-terminal / GINS complex, subunit Psf3 superfamily / GINS complex protein Sld5, alpha-helical domain / DNA replication complex GINS protein SLD5 C-terminus / GINS complex subunit Sld5 / : / MCM3 winged helix domain / GINS subunit, domain A / GINS complex protein helical bundle domain / GINS complex, subunit Psf1 / GINS, helical bundle-like domain superfamily / DNA polymerase alpha/delta/epsilon, subunit B / DNA polymerase alpha/epsilon subunit B / : / MCM5, C-terminal domain / DNA replication licensing factor MCM7, winged helix / DNA replication licensing factor Mcm5 / MCM4, winged helix domain / DNA replication licensing factor Mcm3 / Mini-chromosome maintenance complex protein 4 / : / MCM3-like, winged helix domain / DNA replication licensing factor Mcm6 / DNA replication licensing factor Mcm7 / Mcm6, C-terminal winged-helix domain / MCM6 C-terminal winged-helix domain / DNA replication licensing factor Mcm2 / Mini-chromosome maintenance protein 2 / Mini-chromosome maintenance, conserved site / MCM family signature. / MCM N-terminal domain / MCM N-terminal domain / MCM OB domain / MCM OB domain / Mini-chromosome maintenance protein / MCM, AAA-lid domain / MCM P-loop domain / MCM AAA-lid domain / MCM family domain profile. / minichromosome maintenance proteins / MCM domain / DNA polymerase family B, thumb domain / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family / DNA-directed DNA polymerase, family B / Ribonuclease H superfamily / Ribonuclease H-like superfamily / Winged helix-like DNA-binding domain superfamily / Nucleic acid-binding, OB-fold / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase Similarity search - Domain/homology
DNA polymerase epsilon catalytic subunit A / DNA replication licensing factor MCM3 / DNA polymerase epsilon subunit B / DNA replication licensing factor MCM2 / Minichromosome maintenance protein 5 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM7 / DNA replication complex GINS protein PSF2 / DNA replication licensing factor MCM6 / DNA replication complex GINS protein SLD5 ...DNA polymerase epsilon catalytic subunit A / DNA replication licensing factor MCM3 / DNA polymerase epsilon subunit B / DNA replication licensing factor MCM2 / Minichromosome maintenance protein 5 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM7 / DNA replication complex GINS protein PSF2 / DNA replication licensing factor MCM6 / DNA replication complex GINS protein SLD5 / Cell division control protein 45 / DNA replication complex GINS protein PSF3 / DNA replication complex GINS protein PSF1 Similarity search - Component
Journal: Nat Struct Mol Biol / Year: 2024 Title: Unwinding of a eukaryotic origin of replication visualized by cryo-EM. Authors: Sarah S Henrikus / Marta H Gross / Oliver Willhoft / Thomas Pühringer / Jacob S Lewis / Allison W McClure / Julia F Greiwe / Giacomo Palm / Andrea Nans / John F X Diffley / Alessandro Costa / Abstract: To prevent detrimental chromosome re-replication, DNA loading of a double hexamer of the minichromosome maintenance (MCM) replicative helicase is temporally separated from DNA unwinding. Upon S-phase ...To prevent detrimental chromosome re-replication, DNA loading of a double hexamer of the minichromosome maintenance (MCM) replicative helicase is temporally separated from DNA unwinding. Upon S-phase transition in yeast, DNA unwinding is achieved in two steps: limited opening of the double helix and topological separation of the two DNA strands. First, Cdc45, GINS and Polε engage MCM to assemble a double CMGE with two partially separated hexamers that nucleate DNA melting. In the second step, triggered by Mcm10, two CMGEs separate completely, eject the lagging-strand template and cross paths. To understand Mcm10 during helicase activation, we used biochemical reconstitution with cryogenic electron microscopy. We found that Mcm10 splits the double CMGE by engaging the N-terminal homo-dimerization face of MCM. To eject the lagging strand, DNA unwinding is started from the N-terminal side of MCM while the hexamer channel becomes too narrow to harbor duplex DNA.
Entire : Complex of Mcm2-7, Cdc45, GINS (Psf1-3, Sld5) DNA polymerase epsi...
Entire
Name: Complex of Mcm2-7, Cdc45, GINS (Psf1-3, Sld5) DNA polymerase epsilon (subunit A and B), 19-mer DNA molecule with complementary 7-mer DNA molecule
Components
Complex: Complex of Mcm2-7, Cdc45, GINS (Psf1-3, Sld5) DNA polymerase epsilon (subunit A and B), 19-mer DNA molecule with complementary 7-mer DNA molecule
Complex: DNA replication complex GINS containing Psf1, Psf2, Psf3 and Sld5
Protein or peptide: DNA replication complex GINS protein PSF3
Protein or peptide: DNA replication complex GINS protein SLD5
Protein or peptide: DNA replication complex GINS protein PSF1
Protein or peptide: DNA replication complex GINS protein PSF2
Complex: DNA replication licensing factors MCM2-7
Protein or peptide: DNA replication licensing factor MCM2
Protein or peptide: DNA replication licensing factor MCM3
Protein or peptide: DNA replication licensing factor MCM4
Protein or peptide: Minichromosome maintenance protein 5
Protein or peptide: DNA replication licensing factor MCM6
Protein or peptide: DNA replication licensing factor MCM7
Complex: DNA polymerase epsilon contains catalytic subunit A and non-catalytic subunit B
Protein or peptide: DNA polymerase epsilon subunit B
Protein or peptide: DNA polymerase epsilon catalytic subunit A
Complex: DNA
DNA: DNA (19-MER)
DNA: DNA (7-MER)
Complex: Cdc45
Protein or peptide: Cell division control protein 45
Ligand: ADENOSINE-5'-TRIPHOSPHATE
Ligand: ZINC ION
Ligand: MAGNESIUM ION
Ligand: ADENOSINE-5'-DIPHOSPHATE
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Supramolecule #1: Complex of Mcm2-7, Cdc45, GINS (Psf1-3, Sld5) DNA polymerase epsi...
Supramolecule
Name: Complex of Mcm2-7, Cdc45, GINS (Psf1-3, Sld5) DNA polymerase epsilon (subunit A and B), 19-mer DNA molecule with complementary 7-mer DNA molecule type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#15
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