AlphaFold 3's architecture consists of four main components: Multiple Sequence Alignments (MSA), Template Module, MSA Module, and Pairformer Module.
The model learns through three types of losses: Distance Accuracy, Atomic Relationships, and Confidence Prediction, using sophisticated attention mechanisms with 'pair bias' for consistent geometric predictions.
The diffusion module refines atomic coordinates iteratively starting from random coordinates, conditioned on molecular sequence and evolutionary information, with computational efficiency achieved through sparse attention patterns.
AlphaFold 3's integration of evolutionary information, structural knowledge, and deep learning techniques like diffusion models results in unprecedented accuracy in predicting molecular structures, setting a new standard in computational structural biology.