Related Experiment Video
Updated: May 12, 2026

Implementation of a Permeable Membrane Insert-based Infection System to Study the Effects of Secreted Bacterial Toxins on Mammalian Host Cells
Published on: August 19, 2016
Non classical secretion systems
Roland Lloubes1, Alain Bernadac, Laetitia Houot
1Laboratoire d'Ingénierie des Systèmes Macromoléculaires, Aix-Marseille Université, CNRS - UMR7255, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France. roland.lloubes@imm.cnrs.fr
Abstract:
Bacteria use molecular machines or weapons to colonize, invade or fight other bacteria and eukaryotic cells. In addition to these various secretion systems, two different systems that release bacterial compounds have also been described. The first one corresponds to membrane vesicle formation and to long distance delivery of membrane or soluble components. The second system is dependent of the expression of the colicin lysis genes known for releasing cytoplasmic colicins as well as other soluble proteins. Both systems will be described thereafter.
More Related Videos
09:12Applying Live Cell Imaging and Cryo-Electron Tomography to Resolve Spatiotemporal Features of the Legionella pneumophila Dot/Icm Secretion System
Published on: March 10, 2020
09:14Modifying Baculovirus Expression Vectors to Produce Secreted Plant Proteins in Insect Cells
Published on: August 20, 2018
Related Concept Videos
Gram-negative Bacterial Protein Secretion Systems
Exocrine Glands: Methods of Secretion
Merocrine Secretion
Merocrine secretion is the most common type of exocrine secretion. The secretions are enclosed in vesicles and moved to the cell's apical surface, where the contents are released by exocytosis. For example, mucous, a watery secretion rich in the glycoprotein mucin, is a merocrine secretion. The eccrine glands...
Overview of Secretory Vesicles
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
Regulation of Hormone Secretion
Humoral stimuli,...
Exocrine Glands: Types of Secretions
Serous glands produce watery secretions rich in digestive enzymes and proteins. The constituent cells of the serous gland have centrally located nuclei and eosinophilic secretory granules in the cytoplasm. The parotid gland is an example of a serous gland. It secretes saliva, which contains enzymes, such as lipases and...
Classification of Epithelial Tissues: Glandular Epithelium
Multicellular glands are formed during early development when epithelial budding...