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<p>The human chaperonin system, Hsp60/Hsp10, is essential for maintaining protein homeostasis and is found mainly in mitochondria. Hsp60 forms a bowl-shaped structure that provides an enclosed environment for protein folding, while its co-chaperone, Hsp10, acts as a cap to seal the barrel. This coordinated process is crucial for the proper folding of many unfolded or misfolded proteins, making the Hsp60/Hsp10 complex an indispensable chaperone system. Changes in their expression levels have been linked to diseases such as neurodegenerative disorders and cancer. Although Hsp60 has gained increasing attention, its co-chaperone Hsp10 remains relatively underexplored and has often been assumed to play a passive role. However, emerging studies challenge this view, suggesting that Hsp10 alone may exert regulatory functions within the chaperonin cycle. Here, we present the near-complete NMR backbone assignment of the 102-residue human Hsp10, laying the groundwork for future investigations into its structure, interactions, and roles in facilitating protein folding and preventing aggregation.</p>

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1H, 15N, and 13C resonance assignment of human heat shock protein 10

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月13日

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  • Abigail Page,
  • Wyatt Hendricks,
  • Marielle A. Wälti

摘要

The human chaperonin system, Hsp60/Hsp10, is essential for maintaining protein homeostasis and is found mainly in mitochondria. Hsp60 forms a bowl-shaped structure that provides an enclosed environment for protein folding, while its co-chaperone, Hsp10, acts as a cap to seal the barrel. This coordinated process is crucial for the proper folding of many unfolded or misfolded proteins, making the Hsp60/Hsp10 complex an indispensable chaperone system. Changes in their expression levels have been linked to diseases such as neurodegenerative disorders and cancer. Although Hsp60 has gained increasing attention, its co-chaperone Hsp10 remains relatively underexplored and has often been assumed to play a passive role. However, emerging studies challenge this view, suggesting that Hsp10 alone may exert regulatory functions within the chaperonin cycle. Here, we present the near-complete NMR backbone assignment of the 102-residue human Hsp10, laying the groundwork for future investigations into its structure, interactions, and roles in facilitating protein folding and preventing aggregation.