Browse our latest Structural Biology and Molecular Biophysics articles

Imaging sperm as they travel through the female reproductive tract has revealed new details about fertilization at the molecular level.

The structures of secretory and dimeric IgA reveal pseudosymmetric assemblies of two antibody monomers, in which possible positions of antigen-binding fragments and accessibility to receptor-binding sites are limited.

Cryo-EM reveals the regulation of RUVBL1 and RUVBL2 AAA-ATPases by DHX34, a helicase involved in nonsense-mediated mRNA decay (NMD), and suggests mechanisms for how RUVBL1 and RUVBL2 function in NMD.

Fertilizing mouse spermatozoa, characterized by intact CatSper channels, lack of protein tyrosine phosphorylation, and reacted acrosomes, in the female reproductive tract provide molecular insight into sperm selection for successful fertilization.

Crosslinking the AAA+ protease interface does not abolish protein degradation by ClpAP, establishing that rotation of the AAA+ unfoldase with respect to its partner peptidase is not essential for activity.

A comprehensive structural analysis of inhibitory murine antibody 3D11 binding to Plasmodium berghei circumsporozoite protein reveals common mechanisms of antibody evolution in mammals against Plasmodium parasites.

The voltage-sensing mechanism of a subfamily of potassium channels is modulated in unconventional ways by an amino acid transporter.

Cryo-EM shows that the NADase activity of SARM1 is allosterically inhibited by physiological concentrations of NAD+ that stabilizes an auto-inhibited conformation of SARM1, explaining how NAD+ depletion may inflict neurodegeneration.

Poxin enzymes are a diverse family of insect and viral 2′3′-cGAMP nucleases, which evolved from self-cleaving RNA virus accessory proteases.

Substrate releasing or inhibitor binding on the intracellular side of a glutamate transporter homologue require movements of the transport domain through the lipid membrane, which undergoes adaptive deformations.