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Updated: Nov 19, 2025

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
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Fully Automated Ancestral Sequence Reconstruction using FireProtASR.

Rayyan Tariq Khan1,2, Milos Musil1,2,3, Jan Stourac1,2

  • 1Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic.

Current Protocols
|February 1, 2021
PubMed
Summary
This summary is machine-generated.

Ancestral sequence reconstruction (ASR) automates protein evolution analysis. This technique enhances protein thermostability and substrate specificity for biotechnology and medicine.

Keywords:
ancestral sequence reconstructionautomationprotein engineeringprotein evolutionthermostability

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Area of Science:

  • Protein engineering
  • Biotechnology
  • Evolutionary biology

Background:

  • Protein evolution and engineering are crucial for basic science and industrial applications.
  • Ancestral sequence reconstruction (ASR) is a key technique for understanding evolutionary relationships and engineering proteins with improved properties like thermostability and substrate specificity.

Purpose of the Study:

  • To describe the setup and execution of an automated FireProtASR workflow.
  • To provide a user-friendly web service for inferring ancestral proteins from various input types.

Main Methods:

  • Automated workflow using the FireProtASR web server.
  • Input flexibility: single sequence, homologous sequences, multiple sequence alignment (MSA), or phylogenetic tree.
  • Automatic dataset building, MSA, phylogenetic tree construction, and ancestral node reconstruction.

Main Results:

  • Successful automation of all necessary steps for ASR.
  • Enables novices to improve protein properties, including catalytic promiscuity.
  • Provides a freely accessible web server for ASR: https://loschmidt.chemi.muni.cz/fireprotasr/.

Conclusions:

  • The FireProtASR workflow simplifies and automates ancestral protein reconstruction.
  • This tool enhances protein engineering capabilities for research and industry.
  • Facilitates the development of proteins with desirable characteristics for diverse applications.