Khalid Maria, Khalid Zoya, Abbasi Sumra Wajid, Gul Alvina
Department of Life Sciences, Health Services Academy (HAS), Islamabad, Pakistan.
Department of Biosciences, COMSATS University, Islamabad, Pakistan.
J Biomol Struct Dyn. 2025 Mar 13:1-7. doi: 10.1080/07391102.2025.2477768.
L-type lectin receptor kinases (LECRK) plays a significant role in biotic and abiotic stress response against environmental stimuli in plants. In the Arabidopsis model plant, a total of 45 LECRK was identified but function elucidation is still unresolved. This study carried out a comprehensive analysis of the SNPs associated with L-type lectin protein and how these mutations affect the structure and function of the protein. The computational tools utilized covers both sequence and structure based analysis of the candidate SNPs. The evolutionary analysis identified the conserved residues that are either buried and structurally important or exposed means functionally important hence, can affect the stress response of the protein. A few of the significant mutations are identified M411I, S415C, W431C, A442S, L445F, Q389K, H458Y, and E651V are expected to damage the structure or function of the protein. Among them, the docking studies identified the mutants S415C and W431C as most crucial which can most likely disrupt the protein-protein interactions. Molecular dynamic simulation and principal component analysis further highlights the structural and functional changes in protein resulting by high risks mutations.
L型凝集素受体激酶(LECRK)在植物应对环境刺激的生物和非生物胁迫反应中发挥着重要作用。在拟南芥模式植物中,共鉴定出45种LECRK,但功能阐释仍未解决。本研究对与L型凝集素蛋白相关的单核苷酸多态性(SNP)进行了全面分析,以及这些突变如何影响蛋白质的结构和功能。所使用的计算工具涵盖了基于序列和结构的候选SNP分析。进化分析确定了保守残基,这些残基要么被埋藏且在结构上很重要,要么暴露在外意味着在功能上很重要,因此可能会影响蛋白质的胁迫反应。鉴定出了一些重要突变,如M411I、S415C、W431C、A442S、L445F、Q389K、H458Y和E651V,预计这些突变会损害蛋白质的结构或功能。其中,对接研究确定突变体S415C和W431C最为关键,它们很可能会破坏蛋白质-蛋白质相互作用。分子动力学模拟和主成分分析进一步突出了高风险突变导致的蛋白质结构和功能变化。