Monitoring the effect of SDS on the solvation dynamics and structural conformation of β-casein

Mubashira, Khadeeja; Pramanik, U. Datta; Khamari, Laxmikanta; Mukherjee, Saptarshi

doi:10.1007/s12039-022-02092-8

Cited by 1 publication

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“…This has previously been shown for other IDPs as well. For instance, a study of the conformational changes together with solvation dynamics of bovine β‐casein in the presence of SDS demonstrated that SDS‐induced crowding led to coil‐to‐helix transition of the protein (Mubashira et al, 2022 ). The U. maydis Hsp12 amino acid sequence, when arranged in the form of an α‐helix, could form four amphipathic helices.…”

Section: Discussionmentioning

confidence: 99%

Insight into the biochemical and cell biological function of an intrinsically unstructured heat shock protein, Hsp12 of Ustilago maydis

Mitra

Bhakta

Kar

et al. 2023

Molecular Plant Pathology

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Small heat shock proteins (sHsps) play diverse roles in the stress response and maintenance of cellular functions. The Ustilago maydis genome codes for few sHsps. Among these, Hsp12 has previously been demonstrated to be involved in the pathogenesis of the fungus by our group. In the present study we further investigated the biological function of the protein in the pathogenic development of U. maydis. Analysis of the primary amino acid sequence of Hsp12 in combination with spectroscopic methods to analyse secondary protein structures revealed an intrinsically disordered nature of the protein. We also carried out detailed analysis on the protein aggregation prevention activity associated with Hsp12. Our data suggest Hsp12 has trehalose‐dependent protein aggregation prevention activity. Through assaying the interaction of Hsp12 with lipid membranes in vitro we also showed the ability of U. maydis Hsp12 to induce stability in lipid vesicles. U. maydis hsp12 deletion mutants exhibited defects in the endocytosis process and delayed completion of the pathogenic life cycle. Therefore, U. maydis Hsp12 contributes to the pathogenic development of the fungus through its ability to relieve proteotoxic stress during infection as well as its membrane‐stabilizing function.

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Section: Discussionmentioning

confidence: 99%