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<p>The cohesin protein complex plays a very important role in chromosome segregation, transcription, DNA replication and chromosome condensation. Mutations in cohesin proteins give rise to a disease collectively referred to as Cohesinopathies. The major cause of cohesinopathies arise due to defects associated with gene expression, that give rise to developmental disorders. We have used <i>Saccharomyces cerevisiae</i> to mimic the cohesinopathy disorder Roberts syndrome with mutations (<i>eco1W216G</i>) homologous to that of humans (esco2). Our data suggests that polyol sugars like sorbitol, can repair misfolded proteins and reduce ER and proteostatic stress. We have used sorbitol as a chemical chaperone, to check how it can restore chromosome segregation, gene expression, misregulation, protein misfolding, autophagy and translational defects in the cohesin mutant of the Roberts’ phenotype. Molecular docking has helped us identify the possible sites on Eco1, which could possibly alter the phenotypic traits.</p>

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Functional Activities of Cohesin Proteins Can Be Altered by Chemical Chaperones

  • 期刊论文

  • 发表日期：

    2025年7月16日

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  • Sayali Marathe,
  • Haripriya Chougule,
  • Vandana Nikam,
  • Amitabha Majumdar,
  • Tania Bose

摘要

The cohesin protein complex plays a very important role in chromosome segregation, transcription, DNA replication and chromosome condensation. Mutations in cohesin proteins give rise to a disease collectively referred to as Cohesinopathies. The major cause of cohesinopathies arise due to defects associated with gene expression, that give rise to developmental disorders. We have used Saccharomyces cerevisiae to mimic the cohesinopathy disorder Roberts syndrome with mutations (eco1W216G) homologous to that of humans (esco2). Our data suggests that polyol sugars like sorbitol, can repair misfolded proteins and reduce ER and proteostatic stress. We have used sorbitol as a chemical chaperone, to check how it can restore chromosome segregation, gene expression, misregulation, protein misfolding, autophagy and translational defects in the cohesin mutant of the Roberts’ phenotype. Molecular docking has helped us identify the possible sites on Eco1, which could possibly alter the phenotypic traits.