RT Journal Article SR Electronic T1 EquiFold: Protein Structure Prediction with a Novel Coarse-Grained Structure Representation JF bioRxiv FD Cold Spring Harbor Laboratory SP 2022.10.07.511322 DO 10.1101/2022.10.07.511322 A1 Lee, Jae Hyeon A1 Yadollahpour, Payman A1 Watkins, Andrew A1 Frey, Nathan C. A1 Leaver-Fay, Andrew A1 Ra, Stephen A1 Cho, Kyunghyun A1 Gligorijevic, Vladimir A1 Regev, Aviv A1 Bonneau, Richard YR 2022 UL http://biorxiv.org/content/early/2022/10/08/2022.10.07.511322.abstract AB Designing proteins to achieve specific functions often requires in silico modeling of their properties at high throughput scale and can significantly benefit from fast and accurate protein structure prediction. We introduce EquiFold, a new end-to-end differentiable, SE(3)-equivariant, all-atom protein structure prediction model. EquiFold uses a novel coarse-grained representation of protein structures that does not require multiple sequence alignments or protein language model embeddings, inputs that are commonly used in other state-of-the-art structure prediction models. Our method relies on geometrical structure representation and is substantially smaller than prior state-of-the-art models. In preliminary studies, EquiFold achieved comparable accuracy to AlphaFold but was orders of magnitude faster. The combination of high speed and accuracy make EquiFold suitable for a number of downstream tasks, including protein property prediction and design.Competing Interest StatementThe authors have declared no competing interest.