6zsq

Crystal structure of the Cisplatin beta-Lactoglobulin adduct formed after 18 h of soaking

spinqualitylabelsall models 6zsq, resolution 2.00Å 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 2.004Å Ligands: NH3, PT, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed beta-Lactoglobulin is a major globular milk whey carrier with potential applications as an oral drug delivery system. Herein, the interactions between beta-lactoglobulin and cisplatin are investigated by UV-Vis absorption spectroscopy, circular dichroism, X-ray crystallography and electrospray ionization mass spectrometry. Structural data indicate that the protein retains its conformation upon cisplatin binding. Pt-containing fragments bind the side chains of Met7, His146 and Lys8, with the number of binding sites increasing over time. Mass spectrometry data indicate that [Pt(NH3)2Cl+], [Pt(NH3)2OH22+] and [Pt(NH3)22+] fragments interact with beta-lactoglobulin; up to 3 cisplatin fragments can bind the protein and the number of cisplatin binding sites increases over time. This work opens a new pathway in pharmaceutical studies based on a rational design of metal-based drug/beta-lactoglobulin adducts as delivering vehicles of metallodrugs. Cisplatin binding to beta-lactoglobulin: a structural study.,Balasco N, Ferraro G, Loreto D, Iacobucci I, Monti M, Merlino A Dalton Trans. 2020 Sep 15;49(35):12450-12457. doi: 10.1039/d0dt02582h. PMID:32852026 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Beta-lactoglobulin 3D structures

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