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A specific A/T polymorphism in Western tyrosine phosphorylation B-motifs regulates Helicobacter pylori CagA epithelial cell interactions.

Zhang XS, Tegtmeyer N, Traube L, Jindal S, Perez-Perez G, Sticht H, Backert S, Blaser MJ.

PLoS Pathog. 2015 Feb 3;11(2):e1004621. doi: 10.1371/journal.ppat.1004621. eCollection 2015 Feb.


Helicobacter pylori cell translocating kinase (CtkA/JHP0940) is pro-apoptotic in mouse macrophages and acts as auto-phosphorylating tyrosine kinase.

Tenguria S, Ansari SA, Khan N, Ranjan A, Devi S, Tegtmeyer N, Lind J, Backert S, Ahmed N.

Int J Med Microbiol. 2014 Nov;304(8):1066-76. doi: 10.1016/j.ijmm.2014.07.017. Epub 2014 Aug 6.


The role of serine protease HtrA in acute ulcerative enterocolitis and extra-intestinal immune responses during Campylobacter jejuni infection of gnotobiotic IL-10 deficient mice.

Heimesaat MM, Alutis M, Grundmann U, Fischer A, Tegtmeyer N, Böhm M, Kühl AA, Göbel UB, Backert S, Bereswill S.

Front Cell Infect Microbiol. 2014 Jun 10;4:77. doi: 10.3389/fcimb.2014.00077. eCollection 2014.


Helicobacter pylori CagL Y58/E59 mutation turns-off type IV secretion-dependent delivery of CagA into host cells.

Tegtmeyer N, Lind J, Schmid B, Backert S.

PLoS One. 2014 Jun 3;9(6):e97782. doi: 10.1371/journal.pone.0097782. eCollection 2014.


The impact of serine protease HtrA in apoptosis, intestinal immune responses and extra-intestinal histopathology during Campylobacter jejuni infection of infant mice.

Heimesaat MM, Fischer A, Alutis M, Grundmann U, Boehm M, Tegtmeyer N, Göbel UB, Kühl AA, Bereswill S, Backert S.

Gut Pathog. 2014 May 27;6:16. doi: 10.1186/1757-4749-6-16. eCollection 2014.


Structure of a three-dimensional domain-swapped dimer of the Helicobacter pylori type IV secretion system pilus protein CagL.

Barden S, Schomburg B, Conradi J, Backert S, Sewald N, Niemann HH.

Acta Crystallogr D Biol Crystallogr. 2014 May;70(Pt 5):1391-400. doi: 10.1107/S1399004714003150. Epub 2014 Apr 30.


Systematic analysis of phosphotyrosine antibodies recognizing single phosphorylated EPIYA-motifs in CagA of Western-type Helicobacter pylori strains.

Lind J, Backert S, Pfleiderer K, Berg DE, Yamaoka Y, Sticht H, Tegtmeyer N.

PLoS One. 2014 May 6;9(5):e96488. doi: 10.1371/journal.pone.0096488. eCollection 2014.


DNA transfer in the gastric pathogen Helicobacter pylori.

Fernandez-Gonzalez E, Backert S.

J Gastroenterol. 2014 Apr;49(4):594-604. doi: 10.1007/s00535-014-0938-y. Epub 2014 Feb 11. Review.


Helicobacter pylori-induced posttranscriptional regulation of H-K-ATPase α-subunit gene expression by miRNA.

Zhang YM, Noto JM, Hammond CE, Barth JL, Argraves WS, Backert S, Peek RM Jr, Smolka AJ.

Am J Physiol Gastrointest Liver Physiol. 2014 Apr 1;306(7):G606-13. doi: 10.1152/ajpgi.00333.2013. Epub 2014 Feb 6.


Signal transduction of Helicobacter pylori during interaction with host cell protein receptors of epithelial and immune cells.

Pachathundikandi SK, Tegtmeyer N, Backert S.

Gut Microbes. 2013 Nov-Dec;4(6):454-74. doi: 10.4161/gmic.27001. Epub 2013 Nov 6. Review.


The functional interplay of Helicobacter pylori factors with gastric epithelial cells induces a multi-step process in pathogenesis.

Posselt G, Backert S, Wessler S.

Cell Commun Signal. 2013 Oct 7;11:77. doi: 10.1186/1478-811X-11-77. Review.


Transmigration route of Campylobacter jejuni across polarized intestinal epithelial cells: paracellular, transcellular or both?

Backert S, Boehm M, Wessler S, Tegtmeyer N.

Cell Commun Signal. 2013 Sep 30;11:72. doi: 10.1186/1478-811X-11-72. Review.


A helical RGD motif promoting cell adhesion: crystal structures of the Helicobacter pylori type IV secretion system pilus protein CagL.

Barden S, Lange S, Tegtmeyer N, Conradi J, Sewald N, Backert S, Niemann HH.

Structure. 2013 Nov 5;21(11):1931-41. doi: 10.1016/j.str.2013.08.018. Epub 2013 Sep 26.


Electron microscopic, genetic and protein expression analyses of Helicobacter acinonychis strains from a Bengal tiger.

Tegtmeyer N, Rivas Traverso F, Rohde M, Oyarzabal OA, Lehn N, Schneider-Brachert W, Ferrero RL, Fox JG, Berg DE, Backert S.

PLoS One. 2013 Aug 5;8(8):e71220. doi: 10.1371/journal.pone.0071220. Print 2013.


Molecular methods to investigate adhesion, transmigration, invasion and intracellular survival of the foodborne pathogen Campylobacter jejuni.

Backert S, Hofreuter D.

J Microbiol Methods. 2013 Oct;95(1):8-23. doi: 10.1016/j.mimet.2013.06.031. Epub 2013 Jul 16. Review.


Helicobacter pylori downregulates expression of human β-defensin 1 in the gastric mucosa in a type IV secretion-dependent fashion.

Patel SR, Smith K, Letley DP, Cook KW, Memon AA, Ingram RJ, Staples E, Backert S, Zaitoun AM, Atherton JC, Robinson K.

Cell Microbiol. 2013 Dec;15(12):2080-92. doi: 10.1111/cmi.12174. Epub 2013 Aug 7.


The Cag pathogenicity island and interaction between TLR2/NOD2 and NLRP3 regulate IL-1β production in Helicobacter pylori infected dendritic cells.

Kim DJ, Park JH, Franchi L, Backert S, Núñez G.

Eur J Immunol. 2013 Oct;43(10):2650-8. doi: 10.1002/eji.201243281. Epub 2013 Jul 25. Erratum in: Eur J Immunol. 2014 Jul;44(7):2197.


Peptidoglycan maturation enzymes affect flagellar functionality in bacteria.

Roure S, Bonis M, Chaput C, Ecobichon C, Mattox A, Barrière C, Geldmacher N, Guadagnini S, Schmitt C, Prévost MC, Labigne A, Backert S, Ferrero RL, Boneca IG.

Mol Microbiol. 2012 Nov;86(4):845-56. doi: 10.1111/mmi.12019. Epub 2012 Sep 21. Erratum in: Mol Microbiol. 2013 Apr;88(2):456-7.


An RGD helper sequence in CagL of Helicobacter pylori assists in interactions with integrins and injection of CagA.

Conradi J, Tegtmeyer N, Woźna M, Wissbrock M, Michalek C, Gagell C, Cover TL, Frank R, Sewald N, Backert S.

Front Cell Infect Microbiol. 2012 May 23;2:70. doi: 10.3389/fcimb.2012.00070. eCollection 2012.


Host epithelial cell invasion by Campylobacter jejuni: trigger or zipper mechanism?

O Cróinín T, Backert S.

Front Cell Infect Microbiol. 2012 Mar 5;2:25. doi: 10.3389/fcimb.2012.00025. eCollection 2012. Review.

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