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Vaccination with proteus toxic agglutinin, a hemolysin-independent cytotoxin in vivo, protects against Proteus mirabilis urinary tract infection
Alamuri P, et al. Infect Immun 2009. PMID 19029299 Free PMC article.
Since Pta is surface associated and important for the persistence of P. mirabilis in the host, it was selected as a vaccine candidate. ...The serum immunoglobulin G levels correlated with protection (P = 0.03). This is the first report describing the in vivo cytotoxicity and antigenicity of an autotransporter in P. mirabilis and its use in vaccine development....
Since Pta is surface associated and important for the persistence of P. mirabilis in the host, it was selected as a vaccine candidate …
A novel autotransporter of uropathogenic Proteus mirabilis is both a cytotoxin and an agglutinin
Alamuri P and Mobley HL. Mol Microbiol 2008. PMID 18430084 Free article.
At alkaline pH and optimal cell density, the AT also promoted autoaggregation of P. mirabilis and this function was independent of its protease activity. Cytotoxicity, autoaggregation and virulence were significantly reduced in an isogenic pta mutant of P. mirabilis. Proteus toxic agglutinin (Pta) represents a novel autotransported cytotoxin with no bacterial homologues that works optimally in the alkalinized urinary tract, a characteristic of urease-mediated urea hydrolysis during P. mirabilis infection....
At alkaline pH and optimal cell density, the AT also promoted autoaggregation of P. mirabilis and this function was independent of it …
Methionine sulfoxide reductase in Helicobacter pylori: interaction with methionine-rich proteins and stress-induced expression
Alamuri P and Maier RJ. J Bacteriol 2006. PMID 16885452 Free PMC article.
Pure H. pylori enzyme reduced only the R isomer of methyl p-tolyl-sulfoxide with an apparent K(m) of 4.1 mM for the substrate. ...
Pure H. pylori enzyme reduced only the R isomer of methyl p-tolyl-sulfoxide with an apparent K(m) of 4.1 mM for the substrate. ...
Live attenuated Salmonella vaccines displaying regulated delayed lysis and delayed antigen synthesis to confer protection against Mycobacterium tuberculosis
Juárez-Rodríguez MD, et al. Infect Immun 2012. Among authors: Alamuri P. PMID 22144485 Free PMC article.
The genes expressing these proteins were cloned as an operon transcribed from P(trc) into isogenic Asd(+)/MurA(+) pYA3681 lysis vector derivatives with different replication origins (pBR, p15A, pSC101), resulting in pYA4890, pYA4891, and pYA4892 for SopE(Nt80)-E2C/Ag85A(294) synthesis and pYA4893 and pYA4894 for OmpC(SS)-E2C/Ag85A(294) synthesis. ...
The genes expressing these proteins were cloned as an operon transcribed from P(trc) into isogenic Asd(+)/MurA(+) pYA3681 lysis vecto …
Adhesion, invasion, and agglutination mediated by two trimeric autotransporters in the human uropathogen Proteus mirabilis
Alamuri P, et al. Infect Immun 2010. PMID 20805336 Free PMC article.
Inactivation of aipA in P. mirabilis strains significantly (P < 0.01) reduced the mutants' ability to adhere to or invade HEK293 cell monolayers, and the functions were restored upon complementation. ...E. coli expressing TaaP mediated autoagglutination, and a taaP mutant of P. mirabilis showed significantly (P < 0.05) more reduced aggregation than HI4320. ...

Inactivation of aipA in P. mirabilis strains significantly (P < 0.01) reduced the mutants' ability to adhere to or invade H

The Asd(+)-DadB(+) dual-plasmid system offers a novel means to deliver multiple protective antigens by a recombinant attenuated Salmonella vaccine
Xin W, et al. Infect Immun 2012. Among authors: Alamuri P. PMID 22868499 Free PMC article.
This was significantly (P < 0.05) greater than the stability seen in its recF(+) counterpart χ9590 and could be attributed to reduced interplasmid recombination in χ9760. ...

This was significantly (P < 0.05) greater than the stability seen in its recF(+) counterpart χ9590 and could be attributed to redu

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