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Identification of effective and specific serotonin1B receptor ligands by structure-based virtual screening and molecular dynamics

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Abstract

The serotonergic systems are the most important therapeutic targets for neurological disorders. Many serotonergic drugs have been used to treat neurological disorders, which are well known for their adverse side effects because of the off-target interactions. Development of selective ligands for a specific target is the suitable approach to minimize the off-target interactions and side effects. To identify selective ligands for serotonin 1B receptor (5-HT1BR), the structural analogs of inverse agonist methiothepin (MT) and natural products were screened against 5-HT1BR and other 5-HTR subtypes (5-HT2AR, 5-HT2BR, and 5-HT2CR). In the present study, five compounds were selected out of 9963 screened compounds having higher binding affinity with 5-HT1BR over other 5-HTRs. Amongst them, ZINC31166967 and ZINC31162553 exhibited relatively higher binding affinity towards 5-HT1BR with the binding energy of − 10.1 and − 9.1 kcal/mol, respectively. The pharmacokinetic assessments considered them safe and non-toxic. Molecular dynamics (MD) simulation revealed the stability of these compounds within the active site of the receptor. The overall analysis suggested that ZINC31166967 and ZINC31162553 may be considered as the selective ligands for 5-HT1BR. However, detailed experimental investigations will be required to substantiate the findings.

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Acknowledgements

The authors would like to thank the Supercomputing Facility for Bioinformatics and Computational Biology (SCFBio), IIT Delhi and Department of Biotechnology and Bioinformatics, Sambalpur University for providing computational facilities.

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Correspondence to Bhawani Prasad Bag or Amiya Kumar Patel.

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Bag, B.P., Prusty, S.S. & Patel, A.K. Identification of effective and specific serotonin1B receptor ligands by structure-based virtual screening and molecular dynamics. J Proteins Proteom 12, 213–226 (2021). https://doi.org/10.1007/s42485-021-00069-8

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  • DOI: https://doi.org/10.1007/s42485-021-00069-8

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