We found that sinus bradycardia in members of a large family was associated with a mutation in the gene coding for the pacemaker HCN4 ion channel. Pacemaker channels of the sinoatrial node ...

It has been two hours since the divers left the coast behind. As they reach their designated GPS points in the Gulf of Mexico, their boats’ engines go from roaring to whispering. In pairs, they ...

Catechol oxidases are ubiquitous plant enzymes containing a dinuclear copper center. In the wound-response mechanism of the plant they catalyze the oxidation of a broad range of ortho-diphenols to ...