AK6, an enzyme found in the nucleus of human cells, contains clear traces of single-celled organisms called Asgard archaea, according to new research led by Umeå University. Asgard archaeon. Scale bar – 500 nm. Image credit: Imachi et al., doi: 10.1038/s41586-019-1916-6. “The discovery adds a small piece of the puzzle to understanding how human cells have evolved from more primitive predecessors,” said Umeå University’s Professor Magnus...
