Matthew D. Johnson

An Asgard archaeon from a modern analog of ancient microbial mats

The paper describes a novel Asgard archaeon and its syntrophic interaction with a sulfate-reducing bacterium, suggesting insights into early eukaryotic symbiosis.

Emergent metabolic parasitism driven by organelle sequestration

The paper examines metabolic changes in Mesodinium species, finding that increased photosynthesis leads to reduced metabolic autonomy and loss of key biosynthetic capabilities.

A Protein Antibiotic Inhibits the BAM Complex to Kill Without Cell Entry

This study shows that L-type pyocins inhibit the BAM complex at the cell surface to kill Pseudomonas aeruginosa without entering the cell.

Extracellular loops of the β-barrel domain catalyze rapid folding for function of self-associating autotransporters

This study shows that extracellular loops of the β-barrel domain in Ag43 are essential for passenger domain folding and bacterial aggregation.

Novel cell-to-cell interactions revealed by cryotomography of a DPANN coculture system

This study uses cryo-ET to reveal intercellular nanotubes between a DPANN archaeon and its host, providing insights into host-DPANN communication and proteomic changes during symbiosis.

A large attachment organelle mediates interaction between a novel Nanobdellota archaeon YN1 and its host

This study isolates and characterizes a novel Nanobdellota archaeon and its host, revealing an attachment organelle that mediates their ectosymbiotic interaction.