ESX secretion systems: mycobacterial evolution to counter host immunity

MI Gröschel, F Sayes, R Simeone, L Majlessi… - Nature Reviews …, 2016 - nature.com
Mycobacterium tuberculosis uses sophisticated secretion systems, named 6 kDa early
secretory antigenic target (ESAT6) protein family secretion (ESX) systems (also known as …

The Mycobacterium tuberculosis capsule: a cell structure with key implications in pathogenesis

R Kalscheuer, A Palacios, I Anso, J Cifuente… - Biochemical …, 2019 - portlandpress.com
Bacterial capsules have evolved to be at the forefront of the cell envelope, making them an
essential element of bacterial biology. Efforts to understand the Mycobacterium tuberculosis …

Type VII secretion systems: structure, functions and transport models

A Rivera-Calzada, N Famelis, O Llorca… - Nature Reviews …, 2021 - nature.com
Type VII secretion systems (T7SSs) have a key role in the secretion of effector proteins in
non-pathogenic mycobacteria and pathogenic mycobacteria such as Mycobacterium …

An ancestral mycobacterial effector promotes dissemination of infection

JW Saelens, MI Sweeney, G Viswanathan, AM Xet-Mull… - Cell, 2022 - cell.com
The human pathogen Mycobacterium tuberculosis typically causes lung disease but can
also disseminate to other tissues. We identified a M. tuberculosis (Mtb) outbreak presenting …

Structure of the mycobacterial ESX-5 type VII secretion system pore complex

KSH Beckham, C Ritter, G Chojnowski… - Science …, 2021 - science.org
The ESX-5 type VII secretion system is a membrane-spanning protein complex key to the
virulence of mycobacterial pathogens. However, the overall architecture of the fully …

New insights into the mycobacterial PE and PPE proteins provide a framework for future research

LS Ates - Molecular microbiology, 2020 - Wiley Online Library
The PE and PPE proteins of Mycobacterium tuberculosis have been studied with great
interest since their discovery. Named after the conserved proline (P) and glutamic acid (E) …

Mutations in ppe38 block PE_PGRS secretion and increase virulence of Mycobacterium tuberculosis

LS Ates, A Dippenaar, R Ummels, SR Piersma… - Nature …, 2018 - nature.com
Mycobacterium tuberculosis requires a large number of secreted and exported proteins for
its virulence, immune modulation and nutrient uptake. Most of these proteins are transported …

The enigmatic PE/PPE multigene family of mycobacteria and tuberculosis vaccination

MJ Brennan - Infection and immunity, 2017 - Am Soc Microbiol
The genome of Mycobacterium tuberculosis, the bacterium responsible for the disease
tuberculosis, contains an unusual family of abundant antigens (PE/PPEs). To date, certain …

Mycobacterium tuberculosis PE/PPE proteins enhance the production of reactive oxygen species and formation of neutrophil extracellular traps

M García-Bengoa, M Meurer, M Stehr… - Frontiers in …, 2023 - frontiersin.org
Introduction Neutrophil granulocytes predominate in the lungs of patients infected with
Mycobacterium tuberculosis (Mtb) in earlier stages of the disease. During infection …

A type VII secretion system of Streptococcus gallolyticus subsp. gallolyticus contributes to gut colonization and the development of colon tumors

JC Taylor, X Gao, J Xu, M Holder, J Petrosino… - PLoS …, 2021 - journals.plos.org
Streptococcus gallolyticus subspecies gallolyticus (Sgg) has a strong clinical association
with colorectal cancer (CRC) and actively promotes the development of colon tumors …