Complex: CUL2-ELONGIN B/C-LRR1 bound to human replisome, multibody refinement
Function / homology
Function and homology information
cellular response to bleomycin / DNA secondary structure binding / Switching of origins to a post-replicative state / detection of abiotic stimulus / replication fork arrest / regulation of nuclear cell cycle DNA replication / Unwinding of DNA / cell cycle phase transition / cellular response to cisplatin / DNA replication initiation ...cellular response to bleomycin / DNA secondary structure binding / Switching of origins to a post-replicative state / detection of abiotic stimulus / replication fork arrest / regulation of nuclear cell cycle DNA replication / Unwinding of DNA / cell cycle phase transition / cellular response to cisplatin / DNA replication initiation / epsilon DNA polymerase complex / GINS complex / DNA strand elongation involved in mitotic DNA replication / mitotic DNA replication preinitiation complex assembly / nuclear origin of replication recognition complex / cellular response to hydroxyurea / alpha DNA polymerase:primase complex / mitotic DNA replication / cullin-RING-type E3 NEDD8 transferase / cellular response to chemical stress / anaphase-promoting complex binding / NEDD8 transferase activity / CMG complex / entrainment of circadian clock / cullin-RING ubiquitin ligase complex / DNA replication checkpoint signaling / single-stranded 3'-5' DNA helicase activity / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / single-stranded DNA 3'-5' DNA exonuclease activity / MCM complex / DNA replication preinitiation complex / regulation of phosphorylation / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / target-directed miRNA degradation / elongin complex / VCB complex / mitotic DNA replication checkpoint signaling / positive regulation of protein autoubiquitination / replication fork protection complex / mitotic DNA replication initiation / protein neddylation / double-strand break repair via break-induced replication / NEDD8 ligase activity / mitotic intra-S DNA damage checkpoint signaling / single-stranded DNA helicase activity / Cul5-RING ubiquitin ligase complex / negative regulation of response to oxidative stress / regulation of DNA-templated DNA replication initiation / positive regulation of double-strand break repair / Hydrolases; Acting on ester bonds; Exodeoxyribonucleases producing 5'-phosphomonoesters / ubiquitin-ubiquitin ligase activity / Cul4A-RING E3 ubiquitin ligase complex / SCF ubiquitin ligase complex / inner cell mass cell proliferation / Cul2-RING ubiquitin ligase complex / negative regulation of type I interferon production / nucleotide-excision repair, DNA gap filling / ubiquitin ligase complex scaffold activity / Cul4B-RING E3 ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / DNA replication proofreading / DNA strand elongation involved in DNA replication / Cul3-RING ubiquitin ligase complex / branching morphogenesis of an epithelial tube / cochlea development / DNA synthesis involved in DNA repair / G1/S-Specific Transcription / activation of protein kinase activity / leading strand elongation / replication fork processing / Prolactin receptor signaling / Apoptotic cleavage of cellular proteins / DNA unwinding involved in DNA replication / nuclear replication fork / protein monoubiquitination / 3'-5' DNA helicase activity / mitotic G2 DNA damage checkpoint signaling / DNA replication origin binding / cullin family protein binding / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / positive regulation of double-strand break repair via homologous recombination / Activation of the pre-replicative complex / DNA replication initiation / PCNA-Dependent Long Patch Base Excision Repair / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / cellular response to interleukin-4 / protein K48-linked ubiquitination / Formation of HIV elongation complex in the absence of HIV Tat / embryonic organ development / error-prone translesion synthesis / Nuclear events stimulated by ALK signaling in cancer / Activation of ATR in response to replication stress / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / response to UV Similarity search - Function
DNA polymerase epsilon subunit B, N-terminal / DNA polymerases epsilon N terminal / Claspin / Timeless, C-terminal / Timeless PAB domain / Chromosome segregation in meiosis protein 3 / TIPIN/Csm3/Swi3 / Replication Fork Protection Component Swi3 / Timeless / Timeless, N-terminal ...DNA polymerase epsilon subunit B, N-terminal / DNA polymerases epsilon N terminal / Claspin / Timeless, C-terminal / Timeless PAB domain / Chromosome segregation in meiosis protein 3 / TIPIN/Csm3/Swi3 / Replication Fork Protection Component Swi3 / Timeless / Timeless, N-terminal / Timeless protein / DNA polymerase epsilon, subunit B / : / DNA polymerase alpha-binding protein Ctf4, C-terminal domain / Minichromosome loss protein Mcl1, middle region / Minichromosome loss protein, Mcl1, middle region / DNA polymerase epsilon, catalytic subunit A, C-terminal / DNA polymerase epsilon catalytic subunit / Domain of unknown function (DUF1744) / DUF1744 / CDC45 family / DNA replication complex GINS protein Psf2 / CDC45-like protein / GINS complex, subunit Psf1 / GINS complex, subunit Psf3 / GINS complex, subunit Psf3 superfamily / DNA replication complex GINS protein SLD5, C-terminal / GINS, helical bundle-like domain superfamily / GINS complex protein Sld5, alpha-helical domain / DNA replication complex GINS protein SLD5 C-terminus / GINS complex subunit Sld5 / GINS subunit, domain A / GINS complex protein helical bundle domain / Leucine rich repeat 4 / Leucine Rich repeats (2 copies) / MCM4, winged helix domain / DNA polymerase alpha/delta/epsilon, subunit B / DNA replication licensing factor Mcm5 / DNA polymerase alpha/epsilon subunit B / DNA replication licensing factor Mcm3 / Mini-chromosome maintenance complex protein 4 / 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. / Zinc finger, RING-H2-type / RING-H2 zinc finger domain / MCM N-terminal domain / MCM N-terminal domain / Cullin protein neddylation 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 / : / Cullin, conserved site / Cullin family signature. / Elongin B / Cullin / Elongin-C / Cullin repeat-like-containing domain superfamily / Cullin protein, neddylation domain / Cullin protein neddylation domain / Anaphase-promoting complex subunit 4, WD40 domain / Anaphase-promoting complex subunit 4 WD40 domain / Cullin / Cullin, N-terminal / Cullin homology domain / Cullin homology domain superfamily / Cullin family / Cullin family profile. / DNA polymerase family B, thumb domain / HMG boxes A and B DNA-binding domains profile. / S-phase kinase-associated protein 1-like / SKP1 component, POZ domain / Skp1 family, tetramerisation domain / Found in Skp1 protein family / high mobility group / High mobility group box domain / High mobility group box domain superfamily / DNA polymerase family B / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA-directed DNA polymerase, family B, multifunctional domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family / DNA-directed DNA polymerase, family B / Leucine-rich repeat, typical subtype / Leucine-rich repeats, typical (most populated) subfamily / Leucine-rich repeat profile. / SKP1/BTB/POZ domain superfamily Similarity search - Domain/homology
Cell division control protein 45 homolog / WD repeat and HMG-box DNA-binding protein 1 / DNA replication licensing factor MCM3 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM5 / DNA replication licensing factor MCM7 / DNA replication licensing factor MCM2 / DNA polymerase epsilon subunit 2 / E3 ubiquitin-protein ligase RBX1 / DNA polymerase epsilon catalytic subunit A ...Cell division control protein 45 homolog / WD repeat and HMG-box DNA-binding protein 1 / DNA replication licensing factor MCM3 / DNA replication licensing factor MCM4 / DNA replication licensing factor MCM5 / DNA replication licensing factor MCM7 / DNA replication licensing factor MCM2 / DNA polymerase epsilon subunit 2 / E3 ubiquitin-protein ligase RBX1 / DNA polymerase epsilon catalytic subunit A / Cullin-2 / DNA replication licensing factor MCM6 / DNA replication complex GINS protein PSF1 / Elongin-C / Elongin-B / Leucine-rich repeat protein 1 / DNA replication complex GINS protein SLD5 / DNA replication complex GINS protein PSF3 / TIMELESS-interacting protein / Claspin / Protein timeless homolog / DNA replication complex GINS protein PSF2 Similarity search - Component
Biological species
Homo sapiens (human)
Method
single particle reconstruction / cryo EM / Resolution: 8.0 Å
Journal: Nature / Year: 2021 Title: A conserved mechanism for regulating replisome disassembly in eukaryotes. Authors: Michael Jenkyn-Bedford / Morgan L Jones / Yasemin Baris / Karim P M Labib / Giuseppe Cannone / Joseph T P Yeeles / Tom D Deegan / Abstract: Replisome disassembly is the final step of eukaryotic DNA replication and is triggered by ubiquitylation of the CDC45-MCM-GINS (CMG) replicative helicase. Despite being driven by evolutionarily ...Replisome disassembly is the final step of eukaryotic DNA replication and is triggered by ubiquitylation of the CDC45-MCM-GINS (CMG) replicative helicase. Despite being driven by evolutionarily diverse E3 ubiquitin ligases in different eukaryotes (SCF in budding yeast, CUL2 in metazoa), replisome disassembly is governed by a common regulatory principle, in which ubiquitylation of CMG is suppressed before replication termination, to prevent replication fork collapse. Recent evidence suggests that this suppression is mediated by replication fork DNA. However, it is unknown how SCF and CUL2 discriminate terminated from elongating replisomes, to selectively ubiquitylate CMG only after termination. Here we used cryo-electron microscopy to solve high-resolution structures of budding yeast and human replisome-E3 ligase assemblies. Our structures show that the leucine-rich repeat domains of Dia2 and LRR1 are structurally distinct, but bind to a common site on CMG, including the MCM3 and MCM5 zinc-finger domains. The LRR-MCM interaction is essential for replisome disassembly and, crucially, is occluded by the excluded DNA strand at replication forks, establishing the structural basis for the suppression of CMG ubiquitylation before termination. Our results elucidate a conserved mechanism for the regulation of replisome disassembly in eukaryotes, and reveal a previously unanticipated role for DNA in preserving replisome integrity.
History
Deposition
Aug 31, 2021
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Header (metadata) release
Nov 10, 2021
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Map release
Nov 10, 2021
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Update
Jan 19, 2022
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Current status
Jan 19, 2022
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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