Li Huili, Naeem Anisa, Yousaf Shamaila, Aslam Adnan, Tchier Fairouz, Tola Keneni Abera
School of Software, Pingdingshan University, Pingdingshan, 467000, Henan, China.
International Joint Laboratory for Multidimensional Topology and Carcinogenic Characteristics Analysis of Atmospheric Particulate Matter PM2.5, Pingdingshan, 467000, Henan, China.
Sci Rep. 2025 Jan 3;15(1):638. doi: 10.1038/s41598-024-83697-6.
Amino acids, as the fundamental constituents of proteins and enzymes, play a vital role in various biological processes. Amino acids such as histidine, cysteine, and methionine are known to coordinate with metal ions in proteins and enzymes, playing critical roles in their structure and function. In metalloproteins, metal ions are often coordinated by specific amino acid residues, contributing to the protein's stability and catalytic activity. Investigating the structural properties of amino acids is paramount to understanding the intricacies of protein function and interactions. The molecular structure of amino acid structures are examined using topological indices that are based on both distance and degree. These indices capture unique structural features of amino acids in their molecular graphs. We have developed linear, quadratic, and logarithmic regression models to estimate the five physical/chemical properties of twenty-two amino acids molecules. The findings reveal novel insights into the structural determinants of amino acid properties and present efficient predictive models for various attributes. This research contributes towards better understanding amino acid structures and offers practical applications in bioinformatics, drug design, and structural biology, enhancing the ability to manipulate and comprehend the molecular world.
氨基酸作为蛋白质和酶的基本组成部分,在各种生物过程中发挥着至关重要的作用。已知组氨酸、半胱氨酸和甲硫氨酸等氨基酸在蛋白质和酶中与金属离子配位,在其结构和功能中发挥关键作用。在金属蛋白中,金属离子通常由特定的氨基酸残基配位,有助于蛋白质的稳定性和催化活性。研究氨基酸的结构特性对于理解蛋白质功能和相互作用的复杂性至关重要。使用基于距离和度数的拓扑指数来研究氨基酸结构的分子结构。这些指数捕捉了氨基酸分子图中独特的结构特征。我们已经开发了线性、二次和对数回归模型来估计22种氨基酸分子的五种物理/化学性质。研究结果揭示了关于氨基酸性质结构决定因素的新见解,并为各种属性提供了有效的预测模型。这项研究有助于更好地理解氨基酸结构,并在生物信息学、药物设计和结构生物学中提供实际应用,提高了操纵和理解分子世界的能力。