A novel mechanism of DNA endonucleolytic cleavage has been visualized for the homing endonuclease I-PpoI by trapping the uncleaved enzyme–substrate complex and comparing it to the previously ...

Jan. 19, 2026 A major new scientific review brings reassuring news for expectant parents: using acetaminophen, commonly known as Tylenol, during pregnancy does not increase a child’s risk of autism, ...