2008
DOI: 10.1111/j.1574-6976.2008.00102.x
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Covalent attachment of proteins to peptidoglycan

Abstract: Bacterial surface proteins are key players in host-symbiont or host-pathogen interactions. How these proteins are targeted and displayed at the cell surface are challenging issues of both fundamental and clinical relevance. While surface proteins of Gram-negative bacteria are assembled in the outer membrane, Gram-positive bacteria predominantly utilize their thick cell wall as a platform to anchor their surface proteins. This surface display involves both covalent and noncovalent interactions with either the p… Show more

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Cited by 126 publications
(99 citation statements)
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“…Spy0130 is the only pilin subunit to possess a canonical Leu-Pro-Ser-Thr-Gly-Glu CWS motif that is typically a substrate for class A sortases, such as the housekeeping sortase (SrtA), that attach proteins to lipid II peptidoglycan precursors (8). Experiments reported here show that both Spy0130 and SrtA are required to anchor pili in the S. pyogenes strain SF370 cell wall but are not needed for pilus polymerization.…”
Section: Discussionmentioning
confidence: 72%
“…Spy0130 is the only pilin subunit to possess a canonical Leu-Pro-Ser-Thr-Gly-Glu CWS motif that is typically a substrate for class A sortases, such as the housekeeping sortase (SrtA), that attach proteins to lipid II peptidoglycan precursors (8). Experiments reported here show that both Spy0130 and SrtA are required to anchor pili in the S. pyogenes strain SF370 cell wall but are not needed for pilus polymerization.…”
Section: Discussionmentioning
confidence: 72%
“…In contrast to Gram-negative bacteria, both major pilin polymerization and minor pilin association to the Gram-positive pilus backbone occur through the formation of covalent bonds catalyzed by specialized transpeptidases. These membrane-associated sortase enzymes recognize a LPXTG-like sequence (sorting motif) within their protein substrate (11,12). The enzymatic reaction involves a nucleophilic cysteine residue, which is essential for the covalent intermolecular association between pilus subunits (13)(14)(15).…”
mentioning
confidence: 99%
“…The class C sortases usually act as pili polymerizing enzymes and they catalyze the cross-linking of pilin protein subunits forming the proteinaceous appendixes, using two peptides instead of using a protein and the peptidoglycan as substrates. However, some pilus associated sortases, such as those from Streptococcus pyogenes, belong to the B class (Dramsi, et al, 2008). Also, in L. casei BL23 the sorting signals present in the proteins encoded in the class C sortase clusters do not differ from the LPxTG sequence characteristic to class A substrates.…”
Section: Discussionmentioning
confidence: 99%
“…Desacilación: el grupo amino del puente cruzado de pentaglicina del lípido II (precursor de la síntesis del Se han identificado sortasas en prácticamente todas las bacterias Gram-positivas y actualmente se propone su clasificación en 4 grupos (Dramsi, et al, 2005, Dramsi, et al, 2008. Los miembros de estas cuatro clases estructurales presentan 3 dominios conservados: D1, D2 y D3, aparte de lo cual cada clase de sortasas posee un patrón específico de aminoácidos conservados.…”
Section: Proteínas Ancladas Covalentemente a La Pared Por Acción De Lunclassified
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