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An Integrated Method to Reconstruct Ancient Proteins

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Specialty Molecular Biology
Date 2022 Sep 9
PMID 36083453
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Abstract

Proteins have played a fundamental role throughout life's history on Earth. Despite their biological importance, ancient origin, early function, and evolution of proteins are seldom able to be directly studied because few of these attributes are preserved across geologic timescales. Ancestral sequence reconstruction (ASR) provides a method to infer ancestral amino acid sequences and determine the evolutionary predecessors of modern-day proteins using phylogenetic tools. Laboratory application of ASR allows ancient sequences to be deduced from genetic information available in extant organisms and then experimentally resurrected to elucidate ancestral characteristics. In this article, we provide a generalized, stepwise protocol that considers the major elements of a well-designed ASR study and details potential sources of reconstruction bias that can reduce the relevance of historical inferences. We underscore key stages in our approach so that it may be broadly utilized to reconstruct the evolutionary histories of proteins.

References
1.
Kimura M . Evolutionary rate at the molecular level. Nature. 1968; 217(5129):624-6. DOI: 10.1038/217624a0. View

2.
Eck R, Dayhoff M . Evolution of the structure of ferredoxin based on living relics of primitive amino Acid sequences. Science. 1966; 152(3720):363-6. DOI: 10.1126/science.152.3720.363. View

3.
Doolittle R . Similar amino acid sequences: chance or common ancestry?. Science. 1981; 214(4517):149-59. DOI: 10.1126/science.7280687. View

4.
Copley S . Setting the stage for evolution of a new enzyme. Curr Opin Struct Biol. 2021; 69:41-49. PMC: 8405452. DOI: 10.1016/j.sbi.2021.03.001. View

5.
Yang Z, Rannala B . Molecular phylogenetics: principles and practice. Nat Rev Genet. 2012; 13(5):303-14. DOI: 10.1038/nrg3186. View