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FAMSA2 enables accurate multiple sequence alignment at protein-universe scale

Gudys, A.; Zielezinski, A.; Notredame, C.; Deorowicz, S.

2025-07-18 bioinformatics
10.1101/2025.07.15.664876 bioRxiv
Show abstract

We introduce FAMSA2, an algorithm that produces high-accuracy multiple protein sequence alignments with unprecedented speed. Across structural, phylogenetic, and functional benchmarks, FAMSA2 matches or exceeds the accuracy of state-of-the-art tools while running up to 400 times faster and outperforming the fastest existing aligners. The ability of FAMSA2 to process 12 million sequences in 40 minutes on a 64 GB RAM workstation enables evolutionary and structural analyses at previously unattainable scales.

Published in Nature Biotechnology (predicted rank #4) · training set

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