![]() “They can be formed by a variety of processes from processes in the gas phase, on icy grain surfaces and wet chemistry on the parent bodies of meteorites.” “It is an amazing fact that complex organic molecules exist in denser regions between the stars, in protoplanetary disks, primitive meteorites and comets,” said Thomas Henning, co-author of the new study and director at the Max Planck Institute for Astronomy. The paper is “ A pathway to peptides in space through the condensation of atomic carbon.” The lead author is Serge Krasnokutski, and the paper is published in the journal Nature Astronomy. The research comes from scientists at the University of Jena and the Max Planck Institute for Astronomy. This suggests that the possibility of life’s emergence could be widespread and that any fertile planet or moon has likely been seeded with these building blocks. If this new research is accurate, natural processes in space can produce basic pre-biological building blocks. “It is an amazing fact that complex organic molecules exist in denser regions between the stars, in protoplanetary disks, primitive meteorites and comets.” Thomas Henning, study co-author, MPIA. Now it looks like we can add peptides to the list of organic building blocks that occur naturally in space. Astronomers found amino acids in meteorites that fell to Earth, and they’ve discovered glycine in a comet along with ammonium salts and aliphatic compounds. Researchers have discovered other building blocks like amino acids in space in recent years. The sequence where amino acids and peptides come together to form organic cells. Their discovery in space might do the same for the understanding of the origins of life. Their discovery helped usher in an age marked by a burst in our understanding of biological processes. Peptides are critical, and their use is widespread. Now we live in an age of constant peptide discovery and synthesis, leading to more than 80 new therapeutics that treat a wide range of diseases. Fischer thought the day would come when scientists could use peptide science to synthesize proteins. He won the 1902 Nobel Prize in chemistry. Every cell and all tissue in the body contains peptides.Īccording to most, Emil Fischer discovered peptides and the peptide bond in the early 20th century. Sometimes peptides are called the “shorter cousins of proteins.” Proteins are larger biomolecules that play many critical biological roles, so there would be no proteins and no life without peptides. A chain of polypeptides longer than about 50 is a protein. When peptides join together in a chain, they’re called polypeptides. Peptides are short chains of amino acids, and amino acids are the building blocks of proteins. ![]() This discovery lends credence to the idea that meteoroids, asteroids, or comets could have given life on Earth a kick start by crashing into the planet and delivering biological building blocks. New research shows that they could form on the surfaces of icy grains in space. ![]() Peptides are one of the smallest biomolecules and are one of life’s critical building blocks.
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