Crystal structures of Escherichia coli glucokinase and insights into phosphate binding

This work presents the structure of apo Escherichia coli glucokinase (ecGLK) bound with sulfate, a phosphate mimic, and the structure of ecGLK in complex with both glucose and phosphate, implying a role for phosphate in regulating the glucokinase activity.

Nucleotide-bound crystal structures of the SARS-CoV-2 helicase NSP13

Nucleotide-bound crystal structures of SARS-CoV-2 NSP13 capture a state immediately following ATP hydrolysis and reveal how crystal packing can affect structure-based drug design targeting NSP13.

Structures of Listeria monocytogenes MenD in ThDP-bound and in-crystallo captured intermediate I-bound forms

Here, we report structures of the ThDP-dependent enzyme MenD (SEPHCHC synthase) from L. monocytogenes in its ThDP cofactor-bound and intermediate I-bound forms. Comparisons with an apo form previously deposited in the PDB revealed that this MenD adopts a typical three-domain ThDP-dependent fold, with lower levels of disorder associated with closing of the active site in the ligand-bound structures.

Crystal engineering of the hepatoma-derived growth factor-related protein 2 PWWP domain towards crystallographic fragment screening

A Cys64Ser mutation in the hepatoma-derived growth factor-related protein 2 PWWP domain improved crystal diffraction quality and stability, and enabled growth under low ionic strength conditions by preventing oxidation at a key lattice interface, enabling successful crystallographic fragment screening.