ArticleInternational journal of molecular sciences2024
Interaction of DDB1 with NBS1 in a DNA Damage Checkpoint Pathway.
Article in International journal of molecular sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- The impact of paroxetine on insulin secretion and sensitivity through AKT/GLUT4 axis.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
- Lipid Conjugation of a Photoprotective Meadowfoam (Biomolecules · 2026Article
- Bacteroides ovatus Has the Potential to Be a Next-Generation Probiotic Strain.Probiotics and antimicrobial proteins · 2026Review
- [Public Database-based Study to Explore the Expression and Role of DDB1 in Lung Adenocarcinoma].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2025Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Various DNA damage checkpoint control mechanisms in eukaryotic cells help maintain genomic integrity. Among these, NBS1, a key component of the MRE11-RAD50-NBS1 (MRN) complex, is an essential protein involved in the DNA damage response (DDR). In this study, we discovered that DNA damage-binding protein 1 (DDB1) interacts with NBS1. DDB1 is a DDR sensor protein found in UV-induced DNA replication blocks. Through pull-down and immunoprecipitation assays conducted in Xenopus egg extracts and human cell lines, we demonstrated a specific interaction between NBS1 and DDB1. DDB1 was also found to associate with several proteins that interact with NBS1, including DNA topoisomerase 2-binding protein 1 (TopBP1) and Mediator of DNA damage checkpoint protein 1 (MDC1). Notably, the interaction between DDB1 and NBS1 is disrupted in MDC1-depleted egg extracts, indicating that MDC1 is necessary for this interaction. Furthermore, the depletion of DDB1 leads to increased Chk1 activation upon DNA damage. These novel findings regarding the interaction between NBS1 and DDB1 provide new insights into how DDB1 regulates DNA damage pathways.
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Registered trials
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