Rational design and directed evolution The construction of ArMs primarily relies on two foundational strategies: rational design and directed evolution. Rational design employs targeted mutagenesis to purposefully alter specific residues or regions within a protein scaffold, aiming to incorporate metal-binding sites (MBS) or modulate catalytic activity. This approach is heavily informed by comparative studies between natural enzymes and ArMs, leveraging biochemical intuition and computational predictions to validate the functional roles of specific residues25. However, a significant bottleneck persists: while structural characterization via X-ray crystallography or NMR provides valuable snapshots, these methods often fail to capture dynamic aspects, such as the precise orientation of synthetic cofactors, the system’s stationary states, or the binding modes of catalytic substrates26. In contrast, directed evolution circumvents the need for a sequence-to-function understanding. By mimicking natural selection through iterative cycles of mutagenesis and high-throughput screening, this method facilitates the accumulation of beneficial mutations27. Despite its success, directed evolution is constrained by the sheer vastness of protein sequence space; it is experimentally intractable to sample the near-infinite combinations of amino acid substitutions to identify rare, high-activity variants. Consequently, a hybrid targeted evolution approach has emerged. This strategy synergizes the precision of rational design—using available structural data to...

6,074 likes, 336 comments - collective_evolution on October 31, 2026: "How can you have a useful democracy if the people voting are not accurately informed? Sachs is pointing out that a very small num...

After the dinosaur-killing asteroid hit, giant birds became apex predators for tens of millions of years – and humans were among their prey.

A movie blog for new and old reviews, editorials, lists, and essays

(NaturalNews) Dr. H examined the historical expansion of childhood vaccination recommendations and questioned whether safety research had kept pace with the cha...

TREES PhD applications will be open from 14th October until 14th December 2026 at 5pm for our 2027 entry cohort.Students who are shortlisted for interview will be informed by 1st February and intervie...

Niranjan Jose is a master’s candidate in International Law at the University of St. Gallen in Switzerland, where his research examines the development and operationalisation of Free, Prior and Informed Consent (FPIC) as a legal norm in the context of energy transition mineral mining in the Brazilian Amazon. His thesis traces FPIC’s evolution through the United Nations and Inter-American human rights systems since the 2007 UN Declaration on the Rights of Indigenous Peoples before testing its implementation through two case studies in Pará: Vale’s Onça Puma nickel mine and Glencore’s bauxite operations at the Mineração Rio do Norte mine.