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Cell morphology as a virulence determinant: lessons from Helicobacter pylori.

Salama NR.

Curr Opin Microbiol. 2020 Jan 31;54:11-17. doi: 10.1016/j.mib.2019.12.002. [Epub ahead of print] Review.


Distinct cytoskeletal proteins define zones of enhanced cell wall synthesis in Helicobacter pylori.

Taylor JA, Bratton BP, Sichel SR, Blair KM, Jacobs HM, DeMeester KE, Kuru E, Gray J, Biboy J, VanNieuwenhze MS, Vollmer W, Grimes CL, Shaevitz JW, Salama NR.

Elife. 2020 Jan 9;9. pii: e52482. doi: 10.7554/eLife.52482.


Bent Bacteria: A Comparison of Cell Shape Mechanisms in Proteobacteria.

Taylor JA, Sichel SR, Salama NR.

Annu Rev Microbiol. 2019 Sep 8;73:457-480. doi: 10.1146/annurev-micro-020518-115919. Epub 2019 Jun 14.


Nonhelical Helicobacter pylori Mutants Show Altered Gland Colonization and Elicit Less Gastric Pathology than Helical Bacteria during Chronic Infection.

Martínez LE, O'Brien VP, Leverich CK, Knoblaugh SE, Salama NR.

Infect Immun. 2019 Jun 20;87(7). pii: e00904-18. doi: 10.1128/IAI.00904-18. Print 2019 Jul.


A Genome-Wide Helicobacter pylori Morphology Screen Uncovers a Membrane-Spanning Helical Cell Shape Complex.

Yang DC, Blair KM, Taylor JA, Petersen TW, Sessler T, Tull CM, Leverich CK, Collar AL, Wyckoff TJ, Biboy J, Vollmer W, Salama NR.

J Bacteriol. 2019 Jun 21;201(14). pii: e00724-18. doi: 10.1128/JB.00724-18. Print 2019 Jul 15.


Increased H. pylori stool shedding and EPIYA-D cagA alleles are associated with gastric cancer in an East Asian hospital.

Talarico S, Leverich CK, Wei B, Ma J, Cao X, Guo Y, Han G, Yao L, Self S, Zhao Y, Salama NR.

PLoS One. 2018 Sep 12;13(9):e0202925. doi: 10.1371/journal.pone.0202925. eCollection 2018.


Pathogenesis of Helicobacter pylori infection.

Waskito LA, Salama NR, Yamaoka Y.

Helicobacter. 2018 Sep;23 Suppl 1:e12516. doi: 10.1111/hel.12516. Review.


The Helicobacter pylori cell shape promoting protein Csd5 interacts with the cell wall, MurF, and the bacterial cytoskeleton.

Blair KM, Mears KS, Taylor JA, Fero J, Jones LA, Gafken PR, Whitney JC, Salama NR.

Mol Microbiol. 2018 Oct;110(1):114-127. doi: 10.1111/mmi.14087. Epub 2018 Sep 28.


Droplet Digital PCR-Based Detection of Clarithromycin Resistance in Helicobacter pylori Isolates Reveals Frequent Heteroresistance.

Sun L, Talarico S, Yao L, He L, Self S, You Y, Zhang H, Zhang Y, Guo Y, Liu G, Salama NR, Zhang J.

J Clin Microbiol. 2018 Aug 27;56(9). pii: e00019-18. doi: 10.1128/JCM.00019-18. Print 2018 Sep.


High prevalence of Helicobacter pylori clarithromycin resistance mutations among Seattle patients measured by droplet digital PCR.

Talarico S, Korson AS, Leverich CK, Park S, Jalikis FG, Upton MP, Broussard E, Salama NR.

Helicobacter. 2018 Apr;23(2):e12472. doi: 10.1111/hel.12472. Epub 2018 Feb 26.


The gram-negative bacterial periplasm: Size matters.

Miller SI, Salama NR.

PLoS Biol. 2018 Jan 17;16(1):e2004935. doi: 10.1371/journal.pbio.2004935. eCollection 2018 Jan.


TIFA Signaling in Gastric Epithelial Cells Initiates the cag Type 4 Secretion System-Dependent Innate Immune Response to Helicobacter pylori Infection.

Gall A, Gaudet RG, Gray-Owen SD, Salama NR.

mBio. 2017 Aug 15;8(4). pii: e01168-17. doi: 10.1128/mBio.01168-17.


Correction: The O-Antigen Flippase Wzk Can Substitute for MurJ in Peptidoglycan Synthesis in Helicobacter pylori and Escherichia coli.

Elhenawy W, Davis RM, Fero J, Salama NR, Feldman MF, Ruiz N.

PLoS One. 2017 Jan 23;12(1):e0170518. doi: 10.1371/journal.pone.0170518. eCollection 2017.


Spatial and Temporal Shifts in Bacterial Biogeography and Gland Occupation during the Development of a Chronic Infection.

Keilberg D, Zavros Y, Shepherd B, Salama NR, Ottemann KM.

mBio. 2016 Oct 11;7(5). pii: e01705-16. doi: 10.1128/mBio.01705-16.


The O-Antigen Flippase Wzk Can Substitute for MurJ in Peptidoglycan Synthesis in Helicobacter pylori and Escherichia coli.

Elhenawy W, Davis RM, Fero J, Salama NR, Felman MF, Ruiz N.

PLoS One. 2016 Aug 18;11(8):e0161587. doi: 10.1371/journal.pone.0161587. eCollection 2016. Erratum in: PLoS One. 2017 Jan 23;12 (1):e0170518.


Staying in Shape: the Impact of Cell Shape on Bacterial Survival in Diverse Environments.

Yang DC, Blair KM, Salama NR.

Microbiol Mol Biol Rev. 2016 Feb 10;80(1):187-203. doi: 10.1128/MMBR.00031-15. Print 2016 Mar. Review.


A Bacterial Cell Shape-Determining Inhibitor.

Liu Y, Frirdich E, Taylor JA, Chan AC, Blair KM, Vermeulen J, Ha R, Murphy ME, Salama NR, Gaynor EC, Tanner ME.

ACS Chem Biol. 2016 Apr 15;11(4):981-91. doi: 10.1021/acschembio.5b01039. Epub 2016 Jan 15.


Quantitative Detection and Genotyping of Helicobacter pylori from Stool using Droplet Digital PCR Reveals Variation in Bacterial Loads that Correlates with cagA Virulence Gene Carriage.

Talarico S, Safaeian M, Gonzalez P, Hildesheim A, Herrero R, Porras C, Cortes B, Larson A, Fang FC, Salama NR.

Helicobacter. 2016 Aug;21(4):325-33. doi: 10.1111/hel.12289. Epub 2015 Dec 15.


Helicobacter pylori strains vary cell shape and flagellum number to maintain robust motility in viscous environments.

Martínez LE, Hardcastle JM, Wang J, Pincus Z, Tsang J, Hoover TR, Bansil R, Salama NR.

Mol Microbiol. 2016 Jan;99(1):88-110. doi: 10.1111/mmi.13218. Epub 2015 Oct 14.


Bacterial Composition of the Human Upper Gastrointestinal Tract Microbiome Is Dynamic and Associated with Genomic Instability in a Barrett's Esophagus Cohort.

Gall A, Fero J, McCoy C, Claywell BC, Sanchez CA, Blount PL, Li X, Vaughan TL, Matsen FA, Reid BJ, Salama NR.

PLoS One. 2015 Jun 15;10(6):e0129055. doi: 10.1371/journal.pone.0129055. eCollection 2015.


Analysis of a single Helicobacter pylori strain over a 10-year period in a primate model.

Liu H, Fero JB, Mendez M, Carpenter BM, Servetas SL, Rahman A, Goldman MD, Boren T, Salama NR, Merrell DS, Dubois A.

Int J Med Microbiol. 2015 May;305(3):392-403. doi: 10.1016/j.ijmm.2015.03.002. Epub 2015 Mar 6.


Helical shape of Helicobacter pylori requires an atypical glutamine as a zinc ligand in the carboxypeptidase Csd4.

Chan AC, Blair KM, Liu Y, Frirdich E, Gaynor EC, Tanner ME, Salama NR, Murphy ME.

J Biol Chem. 2015 Feb 6;290(6):3622-38. doi: 10.1074/jbc.M114.624734. Epub 2014 Dec 12.


Flow cytometry-based enrichment for cell shape mutants identifies multiple genes that influence Helicobacter pylori morphology.

Sycuro LK, Rule CS, Petersen TW, Wyckoff TJ, Sessler T, Nagarkar DB, Khalid F, Pincus Z, Biboy J, Vollmer W, Salama NR.

Mol Microbiol. 2013 Nov;90(4):869-83. doi: 10.1111/mmi.12405. Epub 2013 Oct 16.


Life in the human stomach: persistence strategies of the bacterial pathogen Helicobacter pylori.

Salama NR, Hartung ML, Müller A.

Nat Rev Microbiol. 2013 Jun;11(6):385-99. doi: 10.1038/nrmicro3016. Epub 2013 May 8. Review.


Natural competence promotes Helicobacter pylori chronic infection.

Dorer MS, Cohen IE, Sessler TH, Fero J, Salama NR.

Infect Immun. 2013 Jan;81(1):209-15. doi: 10.1128/IAI.01042-12. Epub 2012 Oct 31.


Beyond growth: novel functions for bacterial cell wall hydrolases.

Wyckoff TJ, Taylor JA, Salama NR.

Trends Microbiol. 2012 Nov;20(11):540-7. doi: 10.1016/j.tim.2012.08.003. Epub 2012 Sep 1. Review.


Regulation of Helicobacter pylori adherence by gene conversion.

Talarico S, Whitefield SE, Fero J, Haas R, Salama NR.

Mol Microbiol. 2012 Jun;84(6):1050-61. doi: 10.1111/j.1365-2958.2012.08073.x. Epub 2012 May 4.


Multiple peptidoglycan modification networks modulate Helicobacter pylori's cell shape, motility, and colonization potential.

Sycuro LK, Wyckoff TJ, Biboy J, Born P, Pincus Z, Vollmer W, Salama NR.

PLoS Pathog. 2012;8(3):e1002603. doi: 10.1371/journal.ppat.1002603. Epub 2012 Mar 22.


Recombination and DNA repair in Helicobacter pylori.

Dorer MS, Sessler TH, Salama NR.

Annu Rev Microbiol. 2011;65:329-48. doi: 10.1146/annurev-micro-090110-102931. Review.


Characterization of Helicobacter pylori factors that control transformation frequency and integration length during inter-strain DNA recombination.

Humbert O, Dorer MS, Salama NR.

Mol Microbiol. 2011 Jan;79(2):387-401. doi: 10.1111/j.1365-2958.2010.07456.x. Epub 2010 Nov 23.


WITHDRAWN: Sex-differences in sodium/calcium exchange expression is a determinant of the arrhythmia phenotype in pre-pubertal rabbit hearts with Long QT type 2.

Chen G, Yang X, Kerchner LJ, Salama NR, Alber S, Shusterman V, London B, Salama G.

Heart Rhythm. 2010 Dec 27. [Epub ahead of print]


DNA damage triggers genetic exchange in Helicobacter pylori.

Dorer MS, Fero J, Salama NR.

PLoS Pathog. 2010 Jul 29;6(7):e1001026. doi: 10.1371/journal.ppat.1001026.


Peptidoglycan crosslinking relaxation promotes Helicobacter pylori's helical shape and stomach colonization.

Sycuro LK, Pincus Z, Gutierrez KD, Biboy J, Stern CA, Vollmer W, Salama NR.

Cell. 2010 May 28;141(5):822-33. doi: 10.1016/j.cell.2010.03.046.


Helicobacter pylori's unconventional role in health and disease.

Dorer MS, Talarico S, Salama NR.

PLoS Pathog. 2009 Oct;5(10):e1000544. doi: 10.1371/journal.ppat.1000544. Epub 2009 Oct 26. Review.


Cag3 is a novel essential component of the Helicobacter pylori Cag type IV secretion system outer membrane subcomplex.

Pinto-Santini DM, Salama NR.

J Bacteriol. 2009 Dec;191(23):7343-52. doi: 10.1128/JB.00946-09. Epub 2009 Oct 2.


Functional analysis of the Helicobacter pylori flagellar switch proteins.

Lowenthal AC, Hill M, Sycuro LK, Mehmood K, Salama NR, Ottemann KM.

J Bacteriol. 2009 Dec;191(23):7147-56. doi: 10.1128/JB.00749-09. Epub 2009 Sep 18.


Dual nuclease and helicase activities of Helicobacter pylori AddAB are required for DNA repair, recombination, and mouse infectivity.

Amundsen SK, Fero J, Salama NR, Smith GR.

J Biol Chem. 2009 Jun 19;284(25):16759-66. doi: 10.1074/jbc.M109.005587. Epub 2009 Apr 24.


Pediatric Helicobacter pylori isolates display distinct gene coding capacities and virulence gene marker profiles.

Talarico S, Gold BD, Fero J, Thompson DT, Guarner J, Czinn S, Salama NR.

J Clin Microbiol. 2009 Jun;47(6):1680-8. doi: 10.1128/JCM.00273-09. Epub 2009 Apr 22.


Differences in genome content among Helicobacter pylori isolates from patients with gastritis, duodenal ulcer, or gastric cancer reveal novel disease-associated genes.

Romo-González C, Salama NR, Burgeño-Ferreira J, Ponce-Castañeda V, Lazcano-Ponce E, Camorlinga-Ponce M, Torres J.

Infect Immun. 2009 May;77(5):2201-11. doi: 10.1128/IAI.01284-08. Epub 2009 Feb 23.


Genome-wide screen in Francisella novicida for genes required for pulmonary and systemic infection in mice.

Kraemer PS, Mitchell A, Pelletier MR, Gallagher LA, Wasnick M, Rohmer L, Brittnacher MJ, Manoil C, Skerett SJ, Salama NR.

Infect Immun. 2009 Jan;77(1):232-44. doi: 10.1128/IAI.00978-08. Epub 2008 Oct 27.


The complete genome sequence of Helicobacter pylori strain G27.

Baltrus DA, Amieva MR, Covacci A, Lowe TM, Merrell DS, Ottemann KM, Stein M, Salama NR, Guillemin K.

J Bacteriol. 2009 Jan;191(1):447-8. doi: 10.1128/JB.01416-08. Epub 2008 Oct 24.


Helicobacter pylori AddAB helicase-nuclease and RecA promote recombination-related DNA repair and survival during stomach colonization.

Amundsen SK, Fero J, Hansen LM, Cromie GA, Solnick JV, Smith GR, Salama NR.

Mol Microbiol. 2008 Aug;69(4):994-1007. doi: 10.1111/j.1365-2958.2008.06336.x.


WITHDRAWN: Sex differences in the expression of sodium/calcium exchanger influence the arrhythmia phenotype in the long QT syndrome type 2.

Salama G, London B, Kerchner LJ, Salama NR, Liu T.

Br J Pharmacol. 2008 May 19. [Epub ahead of print]


Using genomic microarrays to study insertional/transposon mutant libraries.

Baldwin DN, Salama NR.

Methods Enzymol. 2007;421:90-110. Review.


Genetic analysis of Helicobacter pylori strain populations colonizing the stomach at different times postinfection.

Salama NR, Gonzalez-Valencia G, Deatherage B, Aviles-Jimenez F, Atherton JC, Graham DY, Torres J.

J Bacteriol. 2007 May;189(10):3834-45. Epub 2007 Mar 2.


Identification of Helicobacter pylori genes that contribute to stomach colonization.

Baldwin DN, Shepherd B, Kraemer P, Hall MK, Sycuro LK, Pinto-Santini DM, Salama NR.

Infect Immun. 2007 Feb;75(2):1005-16. Epub 2006 Nov 13.


Seeking completeness in bacterial mutant hunts.

Salama NR, Manoil C.

Curr Opin Microbiol. 2006 Jun;9(3):307-11. Epub 2006 Apr 17. Review.


The biology of Helicobacter pylori infection, a major risk factor for gastric adenocarcinoma.

Pinto-Santini D, Salama NR.

Cancer Epidemiol Biomarkers Prev. 2005 Aug;14(8):1853-8. Review.


Mutational analysis of metronidazole resistance in Helicobacter pylori.

Moore JM, Salama NR.

Antimicrob Agents Chemother. 2005 Mar;49(3):1236-7.

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