Structure and Dynamics of PD-L1 and an Ultra-High-Affinity PD-1 Receptor Mutant.

The immune checkpoint receptor PD-1 and its ligand, PD-L1, have emerged as key regulators of anti-tumor immunity in humans. Recently, we reported an ultra-high-affinity PD-1 mutant, termed high-affinity consensus (HAC) PD-1, which shows superior therapeutic efficacy in mice compared with antibodies. However, the molecular details underlying the action of this agent remain incompletely understood, and a molecular view of PD-1/PD-L1 interactions in general is only beginning to emerge. Here, we r…

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Modelling proteins’ hidden conformations to predict antibiotic resistance.

TEM β-lactamase confers bacteria with resistance to many antibiotics and rapidly evolves activity against new drugs. However, functional changes are not easily explained by differences in crystal structures. We employ Markov state models to identify hidden conformations and explore their role in determining TEM’s specificity. We integrate these models with existing drug-design tools to create a new technique, called Boltzmann docking, which better predicts TEM specificity by accounting for con…

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Heads up: Scheduled Maintenance

A handful of Stanford-hosted FAH servers—including a stats server— will be undergoing scheduled maintenance starting today until Thursday. Assignments and points should not be affected; however, points may not be…

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fah-web down, rebuild in motion

Our main web server for stats (https://foldingathome.org/) went down over the weekend due to a double failure.  Our sysadmins are working on this today and expect it to be up…

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