The Nobel prize committee announce the chemistry prize winners on the Royal Swedish Academy of Sciences in Stockholm
JONATHAN NACKSTRAND/AFP through Getty Photographs
The 2024 Nobel prize in chemistry has been awarded to David Baker, Demis Hassabis and John Jumper for his or her work on understanding the construction of proteins, which play very important roles in all dwelling organisms. Hassabis and Jumper, of Google DeepMind, developed a man-made intelligence that predicts the construction of proteins. Baker, on the College of Washington in Seattle, has been recognised for his work on designing new proteins.
Proteins are the molecules that make life occur. All the key equipment of life is made from proteins, from the muscle mass that energy us and the molecules that learn and duplicate DNA to the antibodies that defend us from infections.
“To understand life, you first need to understand the shape of proteins,” stated Heiner Linke, chair of the Nobel committee for chemistry, at a press convention.
All proteins are made from chains of amino acids, and there are round 20 completely different varieties of those compounds. The form of proteins is decided by the sequence of amino acids, however the best way through which the chains fold up is so advanced that predicting a protein’s construction from its sequence is extraordinarily difficult.
“For several decades, this was considered impossible,” stated Linke.
A number of groups have developed varied computational strategies of predicting protein buildings, however their accuracy was low. Then Hassabis and Jumper developed an AI referred to as AlphaFold.
The primary model of AlphaFold, unveiled in 2018, was an enchancment on different strategies. The second, launched in 2020, was a large leap ahead, predicting two-thirds of protein buildings with greater than 90 per cent accuracy.
By 2022, AlphaFold had been used to foretell the construction of just about all identified proteins, with the outcomes made freely out there.
“It was an enormous breakthrough,” stated Johan Åqvist, a member of the Nobel committee for chemistry. “This is a fantastic resource for chemical and biological research.”
Baker has lengthy been engaged on the other drawback, that of designing a protein with a desired construction. The probabilities listed here are countless – new proteins might be used to do just about something, from treating illnesses to creating advanced nanomachines.
“David Baker opened up a completely new world of proteins that we had never seen before,” stated Åqvist. “It’s a mind-blowing development.”
Baker has created software program referred to as Rosetta for doing this, which can be freely out there. He and his staff first demonstrated that Rosetta labored again in 2003, once they designed a protein, made it after which used a method referred to as X-ray crystallography to indicate it had the designed construction.
Whereas Åqvist described this 2003 work as “the big breakthrough”, the protein created was small, easy and didn’t do something.
Baker himself described the method as extra gradual. “It really happened over many years,” he stated. “Over the last 20 years, we’ve been able to design proteins with more and more complex and powerful functions.”
“As we got better and better at that, the scope of applications became more and more exciting,” stated Baker. “It’s been this huge opening up of possibilities, because the proteins in nature do so many different things. They mediate all the processes in our bodies and in all living things.”
Baker additionally gave credit score to his colleagues: “I stood on the shoulders of giants. I have had, throughout my career, absolutely wonderful colleagues to work with.”
The award got here as a shock, regardless of hypothesis that he would possibly get it, he stated. “It’s turning out to be a unique, special day.”
The chemistry prize is the third Nobel awarded thus far this yr. On 8 October, the 2024 Nobel prize in physics was awarded to John Hopfield and Geoffrey Hinton for his or her work on synthetic neural networks. On 7 October, the 2024 Nobel prize in physiology or drugs went to Victor Ambros and Gary Ruvkun for his or her discovery that tiny items of RNA referred to as microRNAs play a key function in controlling genes.
Final yr’s Nobel prize in chemistry went to 3 of the builders of quantum dots – particles so small that their electrical and optical properties are influenced by quantum physics.
Subjects:
