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An updated evolutionary and structural study of TBK1 reveals highly conserved motifs as potential pharmacological targets in neurodegenerative diseases.

Papageorgiou, L.; Mangana, E.; Papakonstantinou, E.; Diakou, I.; Pierouli, K.; Dragoumani, K.; Bacopoulou, F.; Chrousos, G. P.; Exarchos, T. P.; Vlamos, P.; Eliopoulos, E.; Vlachakis, D.

2022-09-17 bioinformatics
10.1101/2022.09.16.508274 bioRxiv
Show abstract

TANK binding kinase 1 protein (TBK1) is a kinase that belongs to the I{kappa}B (IKK) family. TBK1, also known as T2K, FTDALS4, NAK, IIAE8 and NF-{kappa}B, is responsible for the phosphorylation of the amino acid residues Serine and Threonine. This enzyme is involved in various key biological processes, including interferon activation and production, homeostasis, cell growth, autophagy, insulin production and the regulation of TNF-, IFN-{beta} and IL-6. Mutations in the TBK1 gene alter the proteins normal function and may lead to an array of pathological conditions, including disorders of the Central Nervous System. The present study sought to elucidate the role of the TBK1 protein in Amyotrophic Lateral Sclerosis (ALS), a human neurodegenerative disorder. A broad evolutionary and phylogenetic analysis of TBK1 was performed across numerous organisms to distinguish conserved regions important for the proteins function. Subsequently, mutations and SNPs were explored and their potential effect on the enzymes function was investigated. These analytical steps, in combination with the study of the secondary, tertiary, and quaternary structure of TBK1, enabled the identification of conserved motifs, which can function as novel pharmacological targets and inform therapeutic strategies for Amyotrophic Lateral Sclerosis.

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