MassIVE MSV000079577

Imported Reanalysis Dataset Public PXD000491

Proteomics reveals dynamic assembly of repair complexes during bypass of DNA cross-links part 2 of 2: AP-MS DATA (QUBIC)

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Description

DNA interstrand crosslinks (ICLs) block replication fork progression by inhibiting DNA strand separation. Repair of ICLs requires sequential incisions, translesion DNA synthesis, and homologous recombination, but the full set of factors involved in these transactions remains unknown. Here we established CHROmatin MASS spectrometry (CHROMASS) to study protein recruitment dynamics during perturbed DNA replication in Xenopus egg extracts. Using CHROMASS, we systematically monitored protein assembly and disassembly at ICL-containing chromatin. Among numerous prospective new DNA repair factors we identified SLF1 and SLF2, which form a complex with RAD18 and together define a new pathway that suppresses genome instability by recruiting the SMC5/6 cohesion complex to DNA lesions. Our study provides the first global analysis of an entire DNA repair pathway and reveals the mechanism of SMC5/6 relocalization to damaged DNA in vertebrate cells. [dataset license: CC0 1.0 Universal (CC0 1.0)]

Keywords: chromatin ; stalled replication forks ; ICL repair ; DNA damage response

Contact

Principal Investigators:
(in alphabetical order) 		Dr Matthias Mann
Submitting User: ccms

Publications

Räschle M, Smeenk G, Hansen RK, Temu T, Oka Y, Hein MY, Nagaraj N, Long DT, Walter JC, Hofmann K, Storchova Z, Cox J, Bekker-Jensen S, Mailand N, Mann M.
DNA repair. Proteomics reveals dynamic assembly of repair complexes during bypass of DNA cross-links.
Science. 2015 May 1;348(6234):1253671. Epub 2015 Apr 30.

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Originally identified proteins that were automatically remapped by MassIVE to proteins in the SwissProt human reference database.

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Number of distinct protein accessions reported across all analyses (original submission and reanalyses) associated with this dataset.

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Distinct protein accessions are counted across all files submitted in the "Statistical Analysis of Quantified Analytes" category having a "Protein" column in this dataset.

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Number of distinct proteins found to be differentially abundant in at least one comparison across all analyses (original submission and reanalyses) associated with this dataset.

A protein is differentially abundant if its change in abundance across conditions is found to be statistically significant with an adjusted p-value <= 0.05 and lists no issues associated with statistical tests for differential abundance.

Distinct protein accessions are counted across all files submitted in the "Statistical Analysis of Quantified Analytes" category having a "Protein" column in this dataset.

"N/A" means no results of this type were submitted.
This dataset may not contain all raw spectra data as originally deposited in PRIDE. It has been imported to MassIVE for reanalysis purposes, so its spectra data here may consist solely of processed peak lists suitable for reanalysis with most software.