[HTML][HTML] Cytoplasmic contractile injection systems mediate cell death in Streptomyces

B Casu, JW Sallmen, S Schlimpert, M Pilhofer - Nature Microbiology, 2023 - nature.com
Contractile injection systems (CIS) are bacteriophage tail-like structures that mediate
bacterial cell–cell interactions. While CIS are highly abundant across diverse bacterial phyla, …

[HTML][HTML] Structural analysis and inhibition of TraE from the pKM101 type IV secretion system

B Casu, J Smart, MA Hancock, M Smith… - Journal of Biological …, 2016 - ASBMB
Gram-negative bacteria use type IV secretion systems (T4SSs) for a variety of macromolecular
transport processes that include the exchange of genetic material. The pKM101 plasmid …

[HTML][HTML] Fragment-based screening identifies inhibitors of ATPase activity and of hexamer formation of Cagα from the Helicobacter pylori type IV secretion system

T Arya, F Oudouhou, B Casu, B Bessette, J Sygusch… - Scientific reports, 2019 - nature.com
Type IV secretion systems are multiprotein complexes that mediate the translocation of
macromolecules across the bacterial cell envelope. In Helicobacter pylori a type IV secretion …

[HTML][HTML] Fragment-based screening identifies novel targets for inhibitors of conjugative transfer of antimicrobial resistance by plasmid pKM101

B Casu, T Arya, B Bessette, C Baron - Scientific Reports, 2017 - nature.com
The increasing frequency of antimicrobial resistance is a problem of global importance.
Novel strategies are urgently needed to understand and inhibit antimicrobial resistance gene …

Analysis of novel interactions between components of the selenocysteine biosynthesis pathway, SEPHS1, SEPHS2, SEPSECS, and SECp43

F Oudouhou, B Casu, AS Dopgwa Puemi… - Biochemistry, 2017 - ACS Publications
In mammalian cells, the incorporation of the 21st amino acid, selenocysteine, into proteins
is guided by the Sec machinery. The function of this protein complex requires several protein–…

VirB8 homolog TraE from plasmid pKM101 forms a hexameric ring structure and interacts with the VirB6 homolog TraD

B Casu, C Mary, A Sverzhinsky… - Proceedings of the …, 2018 - National Acad Sciences
Type IV secretion systems (T4SSs) are multiprotein assemblies that translocate macromolecules
across the cell envelope of bacteria. X-ray crystallographic and electron microscopy (EM…

[HTML][HTML] Adaptive β-lactam resistance from an inducible efflux pump that is post-translationally regulated by the DjlA co-chaperone

J Costafrolaz, G Panis, B Casu, S Ardissone… - PLoS …, 2023 - journals.plos.org
The acquisition of multidrug resistance (MDR) determinants jeopardizes treatment of bacterial
infections with antibiotics. The tripartite efflux pump AcrAB-NodT confers adaptive MDR in …

Structure-based design of small molecule inhibitors of the cagT4SS ATPase Cagα of Helicobacter pylori

C Morin, VT Verma, T Arya, B Casu… - … and Cell Biology, 2024 - cdnsciencepub.com
We here describe the structure-based design of small molecule inhibitors of the type IV
secretion system of Helicobacter pylori. The secretion system is encoded by the cag …

Cytoplasmic contractile injection systems mediate cell death in Streptomyces

B Casu, JW Sallmen, S Schlimpert, M Pilhofer - bioRxiv, 2022 - biorxiv.org
Contractile injection systems (CISs) are bacteriophage tail-like structures that mediate
bacterial cell-cell interactions. While CISs are highly abundant across diverse bacterial phyla, …

Cag-delta (Cag3) protein from the Helicobacter pylori 26695 cag type IV secretion system forms ring-like supramolecular assemblies

J Smart, A Fouillen, B Casu, A Nanci… - FEMS Microbiology …, 2017 - academic.oup.com
Helicobacter pylori is an important cause of gastric pathologies and persistent infection can
lead to stomach cancer. Virulent H. pylori strains encode a type IV secretion system …