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10.3389/fcimb.2017.00215 http://scihub22266oqcxt.onion/10.3389/fcimb.2017.00215 C5445135!5445135 !28603700     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=28603700 &cmd=llinks): Failed to open stream: HTTP request failed! 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The Type IX Secretion System (T9SS): Highlights and Recent Insights into Its Structure and Function |pdf=|usr=}}{{28603700 }} gab.com Text The Type IX Secretion System (T9SS): Highlights and Recent Insights into Its Structure and Function JO: Front Cell Infect Microbiol http://www.kidney.de/pget.php?&tw=1&pmid=28603700 #FOAvip Protein secretion systems are vital for prokaryotic life, as they enable bacteria to acquire nutrients, communicate with other species, defend against biological and chemical agents, and facilitate disease through the delivery of virulence factors. In this review, we will focus on the recently discovered type IX secretion system (T9SS), a complex translocon found only in some species of the Bacteroidetes phylum. T9SS plays two roles, depending on the lifestyle of the bacteria. It provides either a means of movement (called gliding motility) for peace-loving environmental bacteria or a weapon for pathogens. The best-studied members of these two groups are Flavobacterium johnsoniae, a commensal microorganism often found in water and soil, and Porphyromonas gingivalis, a human oral pathogen that is a major causative agent of periodontitis. In P. gingivalis and some other periodontopathogens, T9SS translocates proteins, especially virulence factors, across the outer membrane (OM). Proteins destined for secretion bear a conserved C-terminal domain (CTD) that directs the cargo to the OM translocon. At least 18 proteins are involved in this still enigmatic process, with some engaged in the post-translational modification of T9SS cargo proteins. Upon translocation across the OM, the CTD is removed by a protease with sortase-like activity and an anionic LPS is attached to the newly formed C-terminus. As a result, a cargo protein could be secreted into the extracellular milieu or covalently attached to the bacterial surface. T9SS is regulated by a two-component system; however, the precise environmental signal that triggers it has not been identified. Exploring unknown systems contributing to bacterial virulence is exciting, as it may eventually lead to new therapeutic strategies. During the past decade, the major components of T9SS were identified, as well as hints suggesting the possible mechanism of action. In addition, the list of characterized cargo proteins is constantly growing. The actual structure of the translocon, situated in the OM of bacteria, remains the least explored area; however, new technical approaches and increasing scientific attention have resulted in a growing body of data. Therefore, we present a compact up-to-date review of this topic. Twit Text FOAVip The Type IX Secretion System (T9SS): Highlights and Recent Insights into Its Structure and Function ????Front Cell Infect Microbiol http://www.kidney.de/pget.php?&tw=1&pmid=28603700 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=28603700 #FOAvip English Wikipedia <ref>{{Cite pmid|28603700 }}</ref> The Type IX Secretion System (T9SS): Highlights and Recent Insights into Its Structure and Function #MMPMID28603700 Lasica AM ; Ksiazek M ; Madej M ; Potempa J Front Cell Infect Microbiol 2017[]; 7 (ä): 215 PMID28603700 show ga Protein secretion systems are vital for prokaryotic life, as they enable bacteria to acquire nutrients, communicate with other species, defend against biological and chemical agents, and facilitate disease through the delivery of virulence factors. In this review, we will focus on the recently discovered type IX secretion system (T9SS), a complex translocon found only in some species of the Bacteroidetes phylum. T9SS plays two roles, depending on the lifestyle of the bacteria. It provides either a means of movement (called gliding motility) for peace-loving environmental bacteria or a weapon for pathogens. The best-studied members of these two groups are Flavobacterium johnsoniae, a commensal microorganism often found in water and soil, and Porphyromonas gingivalis, a human oral pathogen that is a major causative agent of periodontitis. In P. gingivalis and some other periodontopathogens, T9SS translocates proteins, especially virulence factors, across the outer membrane (OM). Proteins destined for secretion bear a conserved C-terminal domain (CTD) that directs the cargo to the OM translocon. At least 18 proteins are involved in this still enigmatic process, with some engaged in the post-translational modification of T9SS cargo proteins. Upon translocation across the OM, the CTD is removed by a protease with sortase-like activity and an anionic LPS is attached to the newly formed C-terminus. As a result, a cargo protein could be secreted into the extracellular milieu or covalently attached to the bacterial surface. T9SS is regulated by a two-component system; however, the precise environmental signal that triggers it has not been identified. Exploring unknown systems contributing to bacterial virulence is exciting, as it may eventually lead to new therapeutic strategies. During the past decade, the major components of T9SS were identified, as well as hints suggesting the possible mechanism of action. In addition, the list of characterized cargo proteins is constantly growing. The actual structure of the translocon, situated in the OM of bacteria, remains the least explored area; however, new technical approaches and increasing scientific attention have resulted in a growing body of data. Therefore, we present a compact up-to-date review of this topic. |Bacterial Proteins/metabolism [MESH] |Bacterial Secretion Systems/*chemistry/*physiology [MESH] |Bacteroidetes/*physiology [MESH] |Flavobacterium/physiology [MESH] |Humans [MESH] |Porphyromonas gingivalis/pathogenicity/physiology [MESH] |Protein Processing, Post-Translational [MESH] |Protein Transport [MESH]The Type IX Secretion System (T9SS): Highlights and Recent Insights in(epmc).pdf DeepDyve Pubget Overpricing