In an earlier entry I commented on the use of A.I. to seek antibodies by George Church’s startup Lila. Now it appears that César de la Fuente is employing a similar approach. In both cases A.I. is being used to more efficiently do repetitive well-structured tasks. This is not the highest creative level of human intelligence, but it can free time for humans to exercise the highest level of human intelligence.
(p. A3) Buried in the DNA of the long extinct woolly mammoth is a compound that scientists hope will one day yield a lifesaving antibiotic.
In experiments, mammuthusin, as the compound is called, has eradicated superbugs—bacteria that are resistant to today’s antibiotics and cause infections that are hard to treat—says César de la Fuente, the bioengineer who helped discover the molecule.
. . .
To help combat superbugs, doctors say we need new antibiotics with novel chemical structures or mechanisms of action. But only a handful of such drugs has entered the market over the past several decades.
De la Fuente is banking on artificial intelligence to help end this dry spell. He and his collaborators have built deep-learning algorithms to comb through enormous genetic databases to find peptides, or protein fragments, that have antibacterial properties. They have used this method to analyze animal venoms, the human microbiome and archaea, an underexplored group of microorganisms. They have also mined the genetic codes from fossils of long-extinct animals and humans, including Neanderthals and Denisovans. “This deep-learning model has opened a window into the past,” de la Fuente says.
. . .
When the algorithms identify a new peptide with antibiotic potential, de la Fuente and his team use robots to manufacture the compound in their lab and then test it in mice infected with bacteria. So far, a few hundred peptides made in de la Fuente’s lab have safely and effectively cured sick mice.
One of them was mammuthusin, identified in the genetic code of Mammuthus primigenius, a species of mammoth that last roamed the Earth about 4,000 years ago. The researchers discovered the peptide after mining a National Center for Biotechnology Information database of DNA sequencing data obtained from the fossils of extinct animals. In experiments, mammuthusin was as potent as polymyxin B, an antibiotic often used as a last resort for serious infections, according to a paper published in the journal Nature in June [2024]. The mammoth peptide effectively eradicated a type of bacterium that the World Health Organization has designated a critical pathogen because of its resistance to many common antibiotics.
For the full story, see:
(Note: ellipses, and bracketed year, added.)
(Note: the online version of the story has the date May 24, 2025, and has the title “A Search for New Antibiotics in Ancient DNA.” In the original of both the online and print versions, Mammuthus primigenius appeared in italics.)
The academic article published in Nature Biomedical Engineering in June 2024, and mentioned above, is: