Mass spectrometry of intact membrane proteins: shifting towards a more native-like context

A Oluwole, D Shutin, JR Bolla - Essays in Biochemistry, 2023 - portlandpress.com
Integral membrane proteins are involved in a plethora of biological processes including
cellular signalling, molecular transport, and catalysis. Many of these functions are mediated …

[HTML][HTML] Cryo-EM studies of membrane proteins at 200 keV

C Thangaratnarajah, J Rheinberger… - Current Opinion in …, 2022 - Elsevier
Single-particle cryogenic electron-microscopy (cryo-EM) has emerged as a powerful
technique for the structural characterisation of membrane proteins, especially for targets …

Structural mechanisms of autoinhibition and substrate recognition by the ubiquitin ligase HACE1

J Düring, M Wolter, JJ Toplak, C Torres… - Nature Structural & …, 2024 - nature.com
Ubiquitin ligases (E3s) are pivotal specificity determinants in the ubiquitin system by
selecting substrates and decorating them with distinct ubiquitin signals. However, structure …

Diacylglycerol-dependent hexamers of the SNARE-assembling chaperone Munc13-1 cooperatively bind vesicles

F Li, K Grushin, J Coleman, F Pincet… - Proceedings of the …, 2023 - National Acad Sciences
Munc13-1 is essential for vesicle docking and fusion at the active zone of synapses. Here,
we report that Munc13-1 self-assembles into molecular clusters within diacylglycerol-rich …

Denaturing mass photometry for rapid optimization of chemical protein-protein cross-linking reactions

H Gizardin-Fredon, PE Santo, ME Chagot… - Nature …, 2024 - nature.com
Chemical cross-linking reactions (XL) are an important strategy for studying protein-protein
interactions (PPIs), including low abundant sub-complexes, in structural biology. However …

RNA to Rule Them All: Critical Steps in Lassa Virus Ribonucleoparticle Assembly and Recruitment

L Sänger, HM Williams, D Yu, D Vogel… - Journal of the …, 2023 - ACS Publications
Lassa virus is a negative-strand RNA virus with only four structural proteins that causes
periodic outbreaks in West Africa. The nucleoprotein (NP) encapsidates the viral genome …

Structural insight into G-protein chaperone-mediated maturation of a bacterial adenosylcobalamin-dependent mutase

FA Vaccaro, DA Faber, GA Andree, DA Born… - Journal of Biological …, 2023 - ASBMB
G-protein metallochaperones are essential for the proper maturation of numerous
metalloenzymes. The G-protein chaperone MMAA in humans (MeaB in bacteria) uses GTP …

BRCA2-HSF2BP oligomeric ring disassembly by BRME1 promotes homologous recombination

R Ghouil, S Miron, K Sato, D Ristic… - Science …, 2023 - science.org
In meiotic homologous recombination (HR), BRCA2 facilitates loading of the recombinases
RAD51 and DMC1 at the sites of double-strand breaks (DSBs). The HSF2BP-BRME1 …

[HTML][HTML] SARS-CoV-2 Mpro oligomerization as a potential target for therapy

K Lis, J Plewka, F Menezes, E Bielecka… - International Journal of …, 2024 - Elsevier
The main protease (M pro) of SARS-CoV-2 is critical in the virus's replication cycle,
facilitating the maturation of polyproteins into functional units. Due to its conservation across …

Analysis of protein complex formation at micromolar concentrations by coupling microfluidics with mass photometry

M Claasen, Z Kofinova, M Contino… - JoVE (Journal of Visualized …, 2024 - jove.com
Mass photometry is a versatile mass measurement technology that enables the study of
biomolecular interactions and complex formation in solution without labels. Mass photometry …