分子动力学
Python(编程语言)
脂质双层
计算生物学
化学
膜蛋白
计算机科学
生物物理学
生物系统
膜
生物化学
生物
计算化学
操作系统
作者
Wanling Song,Robin A. Corey,T. Bertie Ansell,C. Keith Cassidy,Michael R. Horrell,Anna Kathryn Duncan,Phillip J. Stansfeld,Mark S.P. Sansom
标识
DOI:10.1021/acs.jctc.1c00708
摘要
Lipids play important modulatory and structural roles for membrane proteins. Molecular dynamics simulations are frequently used to provide insights into the nature of these protein-lipid interactions. Systematic comparative analysis requires tools that provide algorithms for objective assessment of such interactions. We introduce PyLipID, a Python package for the identification and characterization of specific lipid interactions and binding sites on membrane proteins from molecular dynamics simulations. PyLipID uses a community analysis approach for binding site detection, calculating lipid residence times for both the individual protein residues and the detected binding sites. To assist structural analysis, PyLipID produces representative bound lipid poses from simulation data, using a density-based scoring function. To estimate residue contacts robustly, PyLipID uses a dual-cutoff scheme to differentiate between lipid conformational rearrangements while bound from full dissociation events. In addition to the characterization of protein-lipid interactions, PyLipID is applicable to analysis of the interactions of membrane proteins with other ligands. By combining automated analysis, efficient algorithms, and open-source distribution, PyLipID facilitates the systematic analysis of lipid interactions from large simulation data sets of multiple species of membrane proteins.
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