Próteinlíka

Próteinlíka is an Icelandic term that translates to "protein-like" or "proteinoid." It refers to molecules that share some structural and functional characteristics with proteins but are not necessarily synthesized through the biological processes involving DNA and ribosomes. These can include amino acid polymers formed abiotically under prebiotic conditions or synthetic polymers created in laboratories. The study of proteinoids is relevant to understanding the origins of life, as it explores how complex organic molecules could have formed and organized before the evolution of cellular machinery.

These artificial or naturally occurring non-biological polymers can exhibit properties such as self-assembly into microscopic spheres or filaments, and in some cases, they can catalyze simple chemical reactions. The formation of proteinoids is often investigated in experiments simulating early Earth environments, where it is hypothesized that energy sources like lightning or volcanic activity could have driven the polymerization of amino acids. While they are not true proteins, their ability to mimic certain protein functions provides clues about the chemical evolution that may have preceded the emergence of life as we know it. Researchers in fields like astrobiology and synthetic biology explore proteinoids to understand early biochemical pathways and to potentially create novel biomaterials.