The structure of a tetrameric form of the spider neurotoxin, α-latrotoxin, has been determined by single particle cryo-electron microscopy. It reveals a pore complex with extended arms that could ...

Max Perutz is renowned for discovering the structure of hemoglobin. He and his colleagues disclosed the tetrameric structure of methemoglobin in 1970, 33 years after he had set himself that task ...