Leonid Sazanov (IMAGE) Institute of Science and Technology Austria Caption Together with his team, Prof. Sazanov has now described all supercomplexes of the respiratory chain in mammalian cells. © Nadine Poncioni/IST Austria Credit © Nadine Poncioni/IST Austria Usage Restrictions © Nadine Poncioni/IST Austria License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.