7wql | pdb_00007wql

Bovin Beta-lactoglobulin binding with zinc ions

spinqualitylabelsall models 7wql, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7wql is a 2 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.001Å Ligands: ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function LACB_BOVIN Primary component of whey, it binds retinol and is probably involved in the transport of that molecule. Publication Abstract from PubMed Zinc plays a vital role in structural, catalysis, and signal regulation in the human body. Zinc deficiency leads to the dysfunction of many organs and immunity systems. Diet proteins have distinct effects on zinc uptake. However, the mechanisms are uncovered. Here we select three principal components from whey protein: alpha-lactalbumin, beta-lactoglobulin, and bovine serum albumin, which bind with zinc at different affinities, to evaluate the relationship between their potential zinc uptake and protein binding. The experimental data shows that beta-lactoglobulin could promote zinc uptake, alpha-lactalbumin has minor effects, whereas bovine serum albumin reduced zinc uptake in Caco-2 cell lines. Zinc binding effects on protein structure were thoroughly inspected through fluorescent spectroscopy and X-ray crystallography. Isothermal titration calorimetry revealed that three proteins have different binding affinities toward zinc ions. We speculate that protein binding eliminates toxic effects from free zinc, and the binding strength dominates zinc uptake. Zinc binding strength of proteins dominants zinc uptake in Caco-2 cells.,Li T, Jiao R, Ma J, Zang J, Zhao G, Zhang T RSC Adv. 2022 Aug 1;12(33):21122-21128. doi: 10.1039/d2ra03565k. eCollection 2022 , Jul 21. PMID:35975046 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Alpha-lactalbumin 3D structures Beta-lactoglobulin 3D structures

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