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Volume 40 Issue 11, November 2022

Protein structure prediction

Artistic rendering of a system for protein structure prediction. Chowdhury et al. present a deep learning method to predict a protein’s structure from its sequence alone, with applications to orphan and de novo–designed proteins.

See Chowdhury et al.

Image: Alina Kurokhtina. Cover Design: Erin Dewalt.

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  • Existing technologies can map the intricate spatial distribution of biomolecules and cell types within tissues, but not in specimens that remain alive and intact. This study introduces scission-accelerated fluorophore exchange (SAFE) bioorthogonal imaging tools that enable living cells and tissues to be deeply and serially profiled, revealing their biological dynamics across both space and time.

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  • We developed two quantitative PCR-based assays to detect SARS-CoV-2-specific T cell immunity: qTACT and dqTACT. The assays quantify CXCL10 mRNA, after incubation of whole blood with viral peptides, as a proxy of an antigen-specific T cell response, and will allow population-level monitoring of cellular immunity to SARS-CoV-2.

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