Type V Secretion Systems

**Definition:** Secretion systems of GRAM-NEGATIVE BACTERIA (single membrane proteins or multiprotein complexes) that carry out secretion of proteins from the PERIPLASMIC SPACE to the EXTRACELLULAR SPACE via a beta-barrel transmembrane pore. There are several T5SS subtypes: T5aSS monomeric autotransporters, T5bSS two-partner secretions systems (TPSS), T5cSS trimeric autotransporters, T5dSS fused two-partner secretion systems, and T5eSS autotransporters with inverted domains.

**Tree numbers:** - D05.500.890.500.968

**Synonyms:** - Type V Secretion System - Type 5 Secretion Systems - Type 5 Secretion System - Bacterial Secretion System, Type V