De Novo Design, Synthesis, and Mechanistic Evaluation of Short Peptides That Mimic Heat Shock Protein 27 Activity.

ABSTRACT: We report the first small molecule peptides based on the N-terminal sequence of heat shock protein 27 (Hsp27, gene HSPB1) that demonstrates chaperone-like activity. The peptide, comprising the SWDPF sequence located at Hsp27's amino (N)-terminal domain, directly regulates protein aggregation events, maintaining the disaggregated state of the model protein, citrate synthase. While traditional inhibitors of protein aggregation act via regulation of a protein that facilitates aggregation or disaggregation, our molecules are the first small peptides between 5 and 8 amino acids in length that are based on the N-terminus of Hsp27 and directly control protein aggregation. The presented strategy showcases a new approach for developing small peptides that control protein aggregation in proteins wit

SUBMITTER: Kho J 

PROVIDER: S-EPMC8155270 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature