ArticleNucleic acids research2021
Handcuffing intrinsically disordered regions in Mlh1-Pms1 disrupts mismatch repair.
Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- The GHKL ATPase Family as a Paradigm for MutL Homolog Function in DNA Mismatch Repair.International journal of molecular sciences · 2025Review
- Aberrant cytoplasmic localization of MLH1 characterizes a cell population that seeds breast cancer recurrence.Nature communications · 2025Article
- Mlh1-Pms1 couples ATP-driven DNA compaction with nick-dependent endonuclease activation.Nucleic acids research · 2025Article
- The mismatch repair factor Mlh1-Pms1 uses ATP to compact and remodel DNA.bioRxiv : the preprint server for biology · 2025Article
- Insights into DNA cleavage by MutL homologs from analysis of conserved motifs in eukaryotic Mlh1.BioEssays : news and reviews in molecular, cellular and developmental biology · 2023Article
- A conserved motif in the disordered linker of human MLH1 is vital for DNA mismatch repair and its function is diminished by a cancer family mutation.Nucleic acids research · 2023Article
- The mismatch repair endonuclease MutLα tethers duplex regions of DNA together and relieves DNA torsional tension.Nucleic acids research · 2023Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
The DNA mismatch repair (MMR) factor Mlh1-Pms1 contains long intrinsically disordered regions (IDRs) whose exact functions remain elusive. We performed cross-linking mass spectrometry to identify interactions within Mlh1-Pms1 and used this information to insert FRB and FKBP dimerization domains into their IDRs. Baker's yeast strains bearing these constructs were grown with rapamycin to induce dimerization. A strain containing FRB and FKBP domains in the Mlh1 IDR displayed a complete defect in MMR when grown with rapamycin. but removing rapamycin restored MMR functions. Strains in which FRB was inserted into the IDR of one MLH subunit and FKBP into the other subunit were also MMR defective. The MLH complex containing FRB and FKBP domains in the Mlh1 IDR displayed a rapamycin-dependent defect in Mlh1-Pms1 endonuclease activity. In contrast, linking the Mlh1 and Pms1 IDRs through FRB-FKBP dimerization inappropriately activated Mlh1-Pms1 endonuclease activity. We conclude that dynamic and coordinated rearrangements of the MLH IDRs both positively and negatively regulate how the MLH complex acts in MMR. The application of the FRB-FKBP dimerization system to interrogate in vivo functions of a critical repair complex will be useful for probing IDRs in diverse enzymes and to probe transient loss of MMR on demand.
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