SSEmb: A joint embedding of protein sequence and structure enables robust variant effect predictions

Lasse M. Blaabjerg, Nicolas Jonsson, Wouter Boomsma (), Amelie Stein () and Kresten Lindorff-Larsen ()
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Lasse M. Blaabjerg: University of Copenhagen
Nicolas Jonsson: University of Copenhagen
Wouter Boomsma: University of Copenhagen
Amelie Stein: University of Copenhagen
Kresten Lindorff-Larsen: University of Copenhagen

Nature Communications, 2024, vol. 15, issue 1, 1-9

Abstract: Abstract The ability to predict how amino acid changes affect proteins has a wide range of applications including in disease variant classification and protein engineering. Many existing methods focus on learning from patterns found in either protein sequences or protein structures. Here, we present a method for integrating information from sequence and structure in a single model that we term SSEmb (Sequence Structure Embedding). SSEmb combines a graph representation for the protein structure with a transformer model for processing multiple sequence alignments. We show that by integrating both types of information we obtain a variant effect prediction model that is robust when sequence information is scarce. We also show that SSEmb learns embeddings of the sequence and structure that are useful for other downstream tasks such as to predict protein-protein binding sites. We envisage that SSEmb may be useful both for variant effect predictions and as a representation for learning to predict protein properties that depend on sequence and structure.

Date: 2024
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DOI: 10.1038/s41467-024-53982-z

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