7w9a

Dynamics of lipid displacement inside the hydrophobic cavity of a non-specific lipid transfer protein from Solanum melongena

spinqualitylabelsall models 7w9a, resolution 2.12Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7w9a is a 1 chain structure with sequence from Solanum virginianum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.12Å Ligands: DAO Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0A247D6Y2_SOLME Publication Abstract from PubMed Nonspecific lipid transfer proteins are multifunctional and multispecific seed proteins with a characteristic hydrophobic cavity that runs form N-terminal to the C-terminal end. They are capable of binding and transferring different lipid molecules by means of their hydrophobic cavity. Apart from the cavity, lipid molecules bind and interact at key positions on the nsLTP surface as well. The plasticity of the hydrophobic cavity is an unusual property, considered as the primary lipid binding site. Here, we report a crystal structure of nsLTP from Solanum melongena with two lauric acid molecules bound inside the cavity. It has been observed that the extent of the N-terminal entry point and plasticity of the cavity can be extended, upon binding of one or two lipid molecules inside the cavity. The MD simulation further revealed that the lipid molecule shows high mobility inside the cavity and interestingly, was able to change its orientation. An alternate lipid entry site adjacent to the N-terminal end was uncovered during simulation and Arg-84 was implicated to be a potential regulatory residue aside from Tyr-59. Collectively, this study helps to understand that changes in orientation of the lipid inside the cavity could occur intermittently besides entering the cavity via tail-in-mechanism.Communicated by Ramaswamy H. Sarma. Dynamics of lipid displacement inside the hydrophobic cavity of a nonspecific lipid transfer protein from Solanum melongena.,Madni ZK, Kumar A, Kumar U, Jaiswal D, Salunke DM J Biomol Struct Dyn. 2023 Jul-Aug;41(12):5839-5849. doi: , 10.1080/07391102.2022.2097956. Epub 2022 Jul 15. PMID:35838149 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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