PMID- 36928665 OWN - NLM STAT- MEDLINE DCOM- 20230405 LR - 20230405 IS - 0948-5023 (Electronic) IS - 0948-5023 (Linking) VI - 29 IP - 4 DP - 2023 Mar 16 TI - Dynamics of TUBB protein with five majorly occurring natural variants: a risk of cortical dysplasia. PG - 100 LID - 10.1007/s00894-023-05506-7 [doi] AB - Beta-tubulin (TUBB) protein is one of the components of the microtubule cytoskeleton that plays a critical role in the central nervous system. Genetic variants of TUBB cause cortical dysplasia, a developmental brain defect implicated in axonal guidance and the neuron migration. In this study, we assess pathogenic variants (Q15K, Y222F, M299V, V353I, and E401K) of TUBB protein and compared with non-pathogenic variant G235S to determine their impact on protein dynamic to cause cortical dysplasia. Among the analyzed variants, Q15K, Y222F, M299V, and E401K were noticed to have deleterious effect. Then, variant structures were modeled and their affinity with their known cofactor Guanosine-5'-triphosphate (GTP) was assessed which showed diverse binding energies ranged between (-7.436 to -6.950 kcal/mol) for the variants compared to wild-type (-7.428 kcal/mol). Finally, the molecular dynamics simulation of each variant was investigated which showed difference in trajectory between the pathogenic and non-pathogenic variant. Our analysis suggests change in amino acid residue of TUBB structure has notably affects the protein flexibility and their interactions with known cofactor. Overall, our findings provide insight on the relationship between TUBB variants and their structural dynamics that may cause diverse effects leading to cortical dysplasia. CI - (c) 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Janakiraman, V AU - Janakiraman V AD - Drug Discovery and Multi-Omics Laboratory, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India. FAU - Sudhan, M AU - Sudhan M AD - Drug Discovery and Multi-Omics Laboratory, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India. FAU - Alzahrani, Khalid J AU - Alzahrani KJ AD - Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia. FAU - Alshammeri, Saleh AU - Alshammeri S AD - Department of Optometry, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia. FAU - Ahmed, Shiek S S J AU - Ahmed SSSJ AD - Drug Discovery and Multi-Omics Laboratory, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India. shiekssjahmed@gmail.com. FAU - Patil, Shankargouda AU - Patil S AD - College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT, USA. LA - eng PT - Journal Article DEP - 20230316 PL - Germany TA - J Mol Model JT - Journal of molecular modeling JID - 9806569 RN - 0 (Tubulin) SB - IM MH - Humans MH - *Malformations of Cortical Development/genetics MH - Molecular Dynamics Simulation MH - *Tubulin/genetics/metabolism MH - Axon Guidance/genetics OTO - NOTNLM OT - Cortical dysplasia OT - MD simulation OT - Molecular modeling OT - Natural variants OT - TUBB EDAT- 2023/03/18 06:00 MHDA- 2023/03/22 06:00 CRDT- 2023/03/17 09:23 PHST- 2022/09/23 00:00 [received] PHST- 2023/03/09 00:00 [accepted] PHST- 2023/03/17 09:23 [entrez] PHST- 2023/03/18 06:00 [pubmed] PHST- 2023/03/22 06:00 [medline] AID - 10.1007/s00894-023-05506-7 [pii] AID - 10.1007/s00894-023-05506-7 [doi] PST - epublish SO - J Mol Model. 2023 Mar 16;29(4):100. doi: 10.1007/s00894-023-05506-7.