7vgp

Hen egg lysozyme refolded after denaturation at acidic pH

spinqualitylabelsall models 7vgp, resolution 1.91Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.91Å Ligands: NA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Protein structures fluctuate in solution; therefore, proteins have multiple stable structures that are slightly different from each other. In this study, we determined the crystal structure of hen egg lysozyme refolded after denaturation at acidic pH (rHEL) and found a structure different from native HEL (nHEL). The different local conformations of the peptide bond between Asp101 and Gly102 found in the crystal structure was supported by the NMR results for nHEL and rHEL. The NMR experiments also showed shifts in the heteronuclear single quantum coherence signals derived from Thr43 and Asp52. The chemical shift change of Asp52 could be explained by the crystal structure of rHEL, showing the conformational change of Tyr53, whose phenol ring directly lies on the main chain of Asp52. The catalytic activity of rHEL was similar to that of nHEL, indicating that the conformational change had little effect on activity. In contrast, conformational changes could be detected by the binding of monoclonal antibodies against HEL. Using multiple methods, we successfully detected the unusual structure of HEL, which might be another stable structure of HEL in solution. Structural Analysis of Hen Egg Lysozyme Refolded after Denaturation at Acidic pH.,Oda M, Sano T, Kamatari YO, Abe Y, Ikura T, Ito N Protein J. 2022 Feb;41(1):71-78. doi: 10.1007/s10930-021-10036-3. Epub 2022 Jan, 30. PMID:35094218 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Lysozyme 3D structures

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