Codon Usage Bias: An Endless Tale Andrés IriarteGuillermo LamolleHéctor Musto Letter to the Editor 12 August 2021 Pages: 589 - 593
A New Perspective on the Maillard Reaction and the Origin of Life Harold S. BernhardtWarren P. Tate Letter to the Editor 11 October 2021 Pages: 594 - 597
Costly circRNAs, Effective Population Size, and the Origins of Molecular Complexity Scott William Roy Letter to the Editor 26 October 2021 Pages: 598 - 600
Variables Influencing Differences in Sequence Conservation in the Fission Yeast Schizosaccharomyces pombe Simon Emanuel HarnqvistCooper Alastair GraceDaniel Charlton Jeffares Original Article Open access 26 August 2021 Pages: 601 - 610
Structural Computational Analysis of the Natural History of Class I aminoacyl-tRNA Synthetases Suggests their Role in Establishing the Genetic Code Pedro Henrique Lopes Ferreira DantasMarco V. JoséSávio Torres de Farias Original Article 09 September 2021 Pages: 611 - 617
Evolutionary Aspects of the Oxido-Reductive Network of Methylglyoxal Miklós Péter Kalapos Original Article 31 October 2021 Pages: 618 - 638
The Evolution of Hemocyanin Genes in Caenogastropoda: Gene Duplications and Intron Accumulation in Highly Diverse Gastropods Gabriela Giannina SchäferLukas Jörg GrebeBernhard Lieb Original Article Open access 10 November 2021 Pages: 639 - 655
Phylogenetic and Ancestral Sequence Reconstruction of SARS-CoV-2 Reveals Latent Capacity to Bind Human ACE2 Receptor Erin BrintnellMehul GuptaDave W. Anderson Original Article 05 November 2021 Pages: 656 - 664
Evolution of the Cytokinin Dehydrogenase (CKX) Domain Siarhei A. DabravolskiStanislav V. Isayenkov Original Article 08 November 2021 Pages: 665 - 677