Some Proteins Change Their Folds to Perform Different Jobs
Unusual proteins that can quickly fold into different shapes provide cells with a novel regulatory mechanism.
Plant Cells of Different Species Can Swap Organelles
In grafted plants, shrunken chloroplasts can jump between species by slipping through unexpected gateways in cells walls.
Scientists Find Vital Genes Evolving in Genome’s Junkyard
Even genes essential for life can be caught in an evolutionary arms race that forces them to change or be replaced.