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Reinking, H.K.* ; Kang, H.-S. ; Götz, M.J.* ; Li, H.Y.* ; Kieser, A.* ; Zhao, S.* ; Acampora, A.C.* ; Weickert, P.* ; Fessler, E.* ; Jae, L.T.* ; Sattler, M. ; Stingele, J.*

DNA structure-specific cleavage of DNA-protein crosslinks by the SPRTN protease.

Mol. Cell 80, 102-113.e6 (2020)
Verlagsversion Forschungsdaten DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
Repair of covalent DNA-protein crosslinks (DPCs) by DNA-dependent proteases has emerged as an essential genome maintenance mechanism required for cellular viability and tumor suppression. However, how proteolysis is restricted to the crosslinked protein while leaving surrounding chromatin proteins unharmed has remained unknown. Using defined DPC model substrates, we show that the DPC protease SPRTN displays strict DNA structure-specific activity. Strikingly, SPRTN cleaves DPCs at or in direct proximity to disruptions within double-stranded DNA. In contrast, proteins crosslinked to intact double- or single-stranded DNA are not cleaved by SPRTN. NMR spectroscopy data suggest that specificity is not merely affinity-driven but achieved through a flexible bipartite strategy based on two DNA binding interfaces recognizing distinct structural features. This couples DNA context to activation of the enzyme, tightly confining SPRTN's action to biologically relevant scenarios.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Dna Repair ; Dna Structure ; Dna-protein Crosslink ; Formaldehyde ; Protease ; Spartan ; Sprtn ; Topoisomerases ; Wss1; Dvc1 C1orf124; Replication; Repair; Spartan; Damage; Phosphodiesterase; Instability; Activation; Mechanism
Sprache englisch
Veröffentlichungsjahr 2020
HGF-Berichtsjahr 2020
ISSN (print) / ISBN 1097-2765
e-ISSN 1097-4164
Zeitschrift Molecular Cell
Quellenangaben Band: 80, Heft: 1, Seiten: 102-113.e6 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort 50 Hampshire St, Floor 5, Cambridge, Ma 02139 Usa
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Structural Biology (STB)
POF Topic(s) 30203 - Molecular Targets and Therapies
Forschungsfeld(er) Enabling and Novel Technologies
PSP-Element(e) G-503000-001
Förderungen Deutsche Forschungsgemeinschaft
Ludwig-Maximilians-Universität München
Alfried Krupp von Bohlen und Halbach-Stiftung
Peter and Traudl Engelhorn Foundation
LMU -China Scholarship Council Program
International Max-Planck Research School for Molecular Life Sciences
European Research Council (ERC)
Alfried Krupp Prize for Young University Teachers - Alfried-Krupp von Bohlen und Halbach-Stiftung
European Research Council (ERC Starting Grant SOLID)
Center for Integrated Protein Science Munich (CIPSM)
DOI 10.1016/j.molcel.2020.08.003
WOS ID WOS:000576954000011
Scopus ID 85090490875
PubMed ID 32853547
Erfassungsdatum 2020-10-29
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