Related Experiment Video
Updated: Feb 19, 2026

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins
Published on: June 11, 2015
Small bacterial and phagic proteins: an updated view on a rapidly moving field
Mélodie Duval1, Pascale Cossart1
1Unité des Interactions Bactéries-Cellules, Institut Pasteur, Paris F-75015, France; Institut National de la Santé et de la Recherche Médicale, U604, Paris F-75015, France; Institut National de la Recherche Agronomique, Unité Sous Contrat 2020, Paris F-75015, France.
Abstract:
Small proteins, that is, polypeptides of 50 amino acids (aa) or less, are increasingly recognized as important regulators in bacteria. Secreted or not, their small size make them versatile proteins, involved in a wide range of processes. They may allow bacteria to sense and to respond to stresses, to send signals and communicate, and to modulate infections. Bacteriophages also produce small proteins to influence lysogeny/lysis decisions. In this review, we update the present view on small proteins functions, and discuss their possible applications.
More Related Videos
Related Concept Videos
DNA Bacteriophages
Viral Replication: Lytic Cycle
Intracellular Movement of Viruses and Bacteria
Lytic Cycle of Bacteriophages
Viral Replication: Lysogenic Cycle
Bacterial Translocation and Protein Secretion

