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The Ser/Thr Kinase PrkC Participates in Cell Wall Homeostasis and Antimicrobial Resistance in Clostridium difficile.

Cuenot E, Garcia-Garcia T, Douche T, Gorgette O, Courtin P, Denis-Quanquin S, Hoys S, Tremblay YDN, Matondo M, Chapot-Chartier MP, Janoir C, Dupuy B, Candela T, Martin-Verstraete I.

Infect Immun. 2019 Jul 23;87(8). pii: e00005-19. doi: 10.1128/IAI.00005-19. Print 2019 Aug.


Distinct and Specific Role of NlpC/P60 Endopeptidases LytA and LytB in Cell Elongation and Division of Lactobacillus plantarum.

Duchêne MC, Rolain T, Knoops A, Courtin P, Chapot-Chartier MP, Dufrêne YF, Hallet BF, Hols P.

Front Microbiol. 2019 Apr 12;10:713. doi: 10.3389/fmicb.2019.00713. eCollection 2019.


Cwp19 Is a Novel Lytic Transglycosylase Involved in Stationary-Phase Autolysis Resulting in Toxin Release in Clostridium difficile.

Wydau-Dematteis S, El Meouche I, Courtin P, Hamiot A, Lai-Kuen R, Saubaméa B, Fenaille F, Butel MJ, Pons JL, Dupuy B, Chapot-Chartier MP, Peltier J.

MBio. 2018 Jun 12;9(3). pii: e00648-18. doi: 10.1128/mBio.00648-18.


Determination of the cell wall polysaccharide and teichoic acid structures from Lactococcus lactis IL1403.

Vinogradov E, Sadovskaya I, Courtin P, Kulakauskas S, Grard T, Mahony J, van Sinderen D, Chapot-Chartier MP.

Carbohydr Res. 2018 Jun 15;462:39-44. doi: 10.1016/j.carres.2018.04.002. Epub 2018 Apr 12.


D-Alanylation of teichoic acids contributes to Lactobacillus plantarum-mediated Drosophila growth during chronic undernutrition.

Matos RC, Schwarzer M, Gervais H, Courtin P, Joncour P, Gillet B, Ma D, Bulteau AL, Martino ME, Hughes S, Chapot-Chartier MP, Leulier F.

Nat Microbiol. 2017 Dec;2(12):1635-1647. doi: 10.1038/s41564-017-0038-x. Epub 2017 Oct 9.


Another Brick in the Wall: a Rhamnan Polysaccharide Trapped inside Peptidoglycan of Lactococcus lactis.

Sadovskaya I, Vinogradov E, Courtin P, Armalyte J, Meyrand M, Giaouris E, Palussière S, Furlan S, Péchoux C, Ainsworth S, Mahony J, van Sinderen D, Kulakauskas S, Guérardel Y, Chapot-Chartier MP.

MBio. 2017 Sep 12;8(5). pii: e01303-17. doi: 10.1128/mBio.01303-17.


DltX of Bacillus thuringiensis Is Essential for D-Alanylation of Teichoic Acids and Resistance to Antimicrobial Response in Insects.

Kamar R, Réjasse A, Jéhanno I, Attieh Z, Courtin P, Chapot-Chartier MP, Nielsen-Leroux C, Lereclus D, El Chamy L, Kallassy M, Sanchis-Borja V.

Front Microbiol. 2017 Aug 3;8:1437. doi: 10.3389/fmicb.2017.01437. eCollection 2017.


Hydrolysis of peptidoglycan is modulated by amidation of meso-diaminopimelic acid and Mg2+ in Bacillus subtilis.

Dajkovic A, Tesson B, Chauhan S, Courtin P, Keary R, Flores P, Marlière C, Filipe SR, Chapot-Chartier MP, Carballido-Lopez R.

Mol Microbiol. 2017 Jun;104(6):972-988. doi: 10.1111/mmi.13673. Epub 2017 Apr 24.


Regulation of Cell Wall Plasticity by Nucleotide Metabolism in Lactococcus lactis.

Solopova A, Formosa-Dague C, Courtin P, Furlan S, Veiga P, Péchoux C, Armalyte J, Sadauskas M, Kok J, Hols P, Dufrêne YF, Kuipers OP, Chapot-Chartier MP, Kulakauskas S.

J Biol Chem. 2016 May 20;291(21):11323-36. doi: 10.1074/jbc.M116.714303. Epub 2016 Mar 28.


Host lysozyme-mediated lysis of Lactococcus lactis facilitates delivery of colitis-attenuating superoxide dismutase to inflamed colons.

Ballal SA, Veiga P, Fenn K, Michaud M, Kim JH, Gallini CA, Glickman JN, Quéré G, Garault P, Béal C, Derrien M, Courtin P, Kulakauskas S, Chapot-Chartier MP, van Hylckama Vlieg J, Garrett WS.

Proc Natl Acad Sci U S A. 2015 Jun 23;112(25):7803-8. doi: 10.1073/pnas.1501897112. Epub 2015 Jun 8.


Biochemical characterization of the major N-acetylmuramidase from Lactobacillus buchneri.

Anzengruber J, Courtin P, Claes IJ, Debreczeny M, Hofbauer S, Obinger C, Chapot-Chartier MP, Vanderleyden J, Messner P, Schäffer C.

Microbiology. 2014 Aug;160(Pt 8):1807-19. doi: 10.1099/mic.0.078162-0. Epub 2014 May 24.


Differences in lactococcal cell wall polysaccharide structure are major determining factors in bacteriophage sensitivity.

Ainsworth S, Sadovskaya I, Vinogradov E, Courtin P, Guerardel Y, Mahony J, Grard T, Cambillau C, Chapot-Chartier MP, van Sinderen D.

MBio. 2014 May 6;5(3):e00880-14. doi: 10.1128/mBio.00880-14.


Immune response elicited by DNA vaccination using Lactococcus lactis is modified by the production of surface exposed pathogenic protein.

Pontes D, Azevedo M, Innocentin S, Blugeon S, Lefévre F, Azevedo V, Miyoshi A, Courtin P, Chapot-Chartier MP, Langella P, Chatel JM.

PLoS One. 2014 Jan 21;9(1):e84509. doi: 10.1371/journal.pone.0084509. eCollection 2014.


Multilocus analysis reveals diversity in the genus Tissierella: description of Tissierella carlieri sp. nov. in the new class Tissierellia classis nov.

Alauzet C, Marchandin H, Courtin P, Mory F, Lemée L, Pons JL, Chapot-Chartier MP, Lozniewski A, Jumas-Bilak E.

Syst Appl Microbiol. 2014 Feb;37(1):23-34. doi: 10.1016/j.syapm.2013.09.007. Epub 2013 Nov 20.


O-glycosylation as a novel control mechanism of peptidoglycan hydrolase activity.

Rolain T, Bernard E, Beaussart A, Degand H, Courtin P, Egge-Jacobsen W, Bron PA, Morsomme P, Kleerebezem M, Chapot-Chartier MP, Dufrêne YF, Hols P.

J Biol Chem. 2013 Aug 2;288(31):22233-47. doi: 10.1074/jbc.M113.470716. Epub 2013 Jun 12.


A novel type of peptidoglycan-binding domain highly specific for amidated D-Asp cross-bridge, identified in Lactobacillus casei bacteriophage endolysins.

Regulski K, Courtin P, Kulakauskas S, Chapot-Chartier MP.

J Biol Chem. 2013 Jul 12;288(28):20416-26. doi: 10.1074/jbc.M112.446344. Epub 2013 Jun 3.


Genomic and expression analysis of the vanG-like gene cluster of Clostridium difficile.

Peltier J, Courtin P, El Meouche I, Catel-Ferreira M, Chapot-Chartier MP, Lemée L, Pons JL.

Microbiology. 2013 Jul;159(Pt 7):1510-20. doi: 10.1099/mic.0.065060-0. Epub 2013 May 15.


The lactococcal phages Tuc2009 and TP901-1 incorporate two alternate forms of their tail fiber into their virions for infection specialization.

Stockdale SR, Mahony J, Courtin P, Chapot-Chartier MP, van Pijkeren JP, Britton RA, Neve H, Heller KJ, Aideh B, Vogensen FK, van Sinderen D.

J Biol Chem. 2013 Feb 22;288(8):5581-90. doi: 10.1074/jbc.M112.444901. Epub 2013 Jan 8.


Identification of key peptidoglycan hydrolases for morphogenesis, autolysis, and peptidoglycan composition of Lactobacillus plantarum WCFS1.

Rolain T, Bernard E, Courtin P, Bron PA, Kleerebezem M, Chapot-Chartier MP, Hols P.

Microb Cell Fact. 2012 Oct 15;11:137. doi: 10.1186/1475-2859-11-137.


The lysozyme-induced peptidoglycan N-acetylglucosamine deacetylase PgdA (EF1843) is required for Enterococcus faecalis virulence.

Benachour A, Ladjouzi R, Le Jeune A, Hébert L, Thorpe S, Courtin P, Chapot-Chartier MP, Prajsnar TK, Foster SJ, Mesnage S.

J Bacteriol. 2012 Nov;194(22):6066-73. doi: 10.1128/JB.00981-12. Epub 2012 Sep 7.


Role of the Group B antigen of Streptococcus agalactiae: a peptidoglycan-anchored polysaccharide involved in cell wall biogenesis.

Caliot É, Dramsi S, Chapot-Chartier MP, Courtin P, Kulakauskas S, Péchoux C, Trieu-Cuot P, Mistou MY.

PLoS Pathog. 2012;8(6):e1002756. doi: 10.1371/journal.ppat.1002756. Epub 2012 Jun 14.


Isolation of Lactococcus lactis mutants simultaneously resistant to the cell wall-active bacteriocin Lcn972, lysozyme, nisin, and bacteriophage c2.

Roces C, Courtin P, Kulakauskas S, Rodríguez A, Chapot-Chartier MP, Martínez B.

Appl Environ Microbiol. 2012 Jun;78(12):4157-63. doi: 10.1128/AEM.00795-12. Epub 2012 Apr 13.


Analysis of the peptidoglycan hydrolase complement of Lactobacillus casei and characterization of the major γ-D-glutamyl-L-lysyl-endopeptidase.

Regulski K, Courtin P, Meyrand M, Claes IJ, Lebeer S, Vanderleyden J, Hols P, Guillot A, Chapot-Chartier MP.

PLoS One. 2012;7(2):e32301. doi: 10.1371/journal.pone.0032301. Epub 2012 Feb 27.


Genetic and biochemical characterization of the cell wall hydrolase activity of the major secreted protein of Lactobacillus rhamnosus GG.

Claes IJ, Schoofs G, Regulski K, Courtin P, Chapot-Chartier MP, Rolain T, Hols P, von Ossowski I, Reunanen J, de Vos WM, Palva A, Vanderleyden J, De Keersmaecker SC, Lebeer S.

PLoS One. 2012;7(2):e31588. doi: 10.1371/journal.pone.0031588. Epub 2012 Feb 16.


Identification of the amidotransferase AsnB1 as being responsible for meso-diaminopimelic acid amidation in Lactobacillus plantarum peptidoglycan.

Bernard E, Rolain T, Courtin P, Hols P, Chapot-Chartier MP.

J Bacteriol. 2011 Nov;193(22):6323-30. doi: 10.1128/JB.05060-11. Epub 2011 Sep 23.


Clostridium difficile has an original peptidoglycan structure with a high level of N-acetylglucosamine deacetylation and mainly 3-3 cross-links.

Peltier J, Courtin P, El Meouche I, Lemée L, Chapot-Chartier MP, Pons JL.

J Biol Chem. 2011 Aug 19;286(33):29053-62. doi: 10.1074/jbc.M111.259150. Epub 2011 Jun 17.


Characterization of O-acetylation of N-acetylglucosamine: a novel structural variation of bacterial peptidoglycan.

Bernard E, Rolain T, Courtin P, Guillot A, Langella P, Hols P, Chapot-Chartier MP.

J Biol Chem. 2011 Jul 8;286(27):23950-8. doi: 10.1074/jbc.M111.241414. Epub 2011 May 17.


[Lemierre's syndrome].

Courtin P, Toro A, Gazagnes M, Berrouba A, Gallardo M, Dembele A.

Ann Fr Anesth Reanim. 2010 Nov;29(11):799-802. doi: 10.1016/j.annfar.2010.07.015. Epub 2010 Oct 29. French.


Functional and morphological adaptation to peptidoglycan precursor alteration in Lactococcus lactis.

Deghorain M, Fontaine L, David B, Mainardi JL, Courtin P, Daniel R, Errington J, Sorokin A, Bolotin A, Chapot-Chartier MP, Hallet B, Hols P.

J Biol Chem. 2010 Jul 30;285(31):24003-13. doi: 10.1074/jbc.M110.143636. Epub 2010 Jun 4.


Penicillin-binding protein folding is dependent on the PrsA peptidyl-prolyl cis-trans isomerase in Bacillus subtilis.

Hyyryläinen HL, Marciniak BC, Dahncke K, Pietiäinen M, Courtin P, Vitikainen M, Seppala R, Otto A, Becher D, Chapot-Chartier MP, Kuipers OP, Kontinen VP.

Mol Microbiol. 2010 Jul 1;77(1):108-27. doi: 10.1111/j.1365-2958.2010.07188.x. Epub 2010 May 4.


Characterization of Acp, a peptidoglycan hydrolase of Clostridium perfringens with N-acetylglucosaminidase activity that is implicated in cell separation and stress-induced autolysis.

Camiade E, Peltier J, Bourgeois I, Couture-Tosi E, Courtin P, Antunes A, Chapot-Chartier MP, Dupuy B, Pons JL.

J Bacteriol. 2010 May;192(9):2373-84. doi: 10.1128/JB.01546-09. Epub 2010 Feb 26.


Cell surface of Lactococcus lactis is covered by a protective polysaccharide pellicle.

Chapot-Chartier MP, Vinogradov E, Sadovskaya I, Andre G, Mistou MY, Trieu-Cuot P, Furlan S, Bidnenko E, Courtin P, Péchoux C, Hols P, Dufrêne YF, Kulakauskas S.

J Biol Chem. 2010 Apr 2;285(14):10464-71. doi: 10.1074/jbc.M109.082958. Epub 2010 Jan 27.


Renal failure after ingestion of Amanita proxima.

Courtin P, Gallardo M, Berrouba A, Drouet G, de Haro L.

Clin Toxicol (Phila). 2009 Nov;47(9):906-8. doi: 10.3109/15563650903289485. No abstract available.


The role of aminopeptidase PepS in the growth of Streptococcus thermophilus is not restricted to nitrogen nutrition.

Thomas S, Besset C, Courtin P, Rul F.

J Appl Microbiol. 2010 Jan;108(1):148-57. doi: 10.1111/j.1365-2672.2009.04400.x.


Identification of the asparagine synthase responsible for D-Asp amidation in the Lactococcus lactis peptidoglycan interpeptide crossbridge.

Veiga P, Erkelenz M, Bernard E, Courtin P, Kulakauskas S, Chapot-Chartier MP.

J Bacteriol. 2009 Jun;191(11):3752-7. doi: 10.1128/JB.00126-09. Epub 2009 Mar 27.


The CHAP domain of Cse functions as an endopeptidase that acts at mature septa to promote Streptococcus thermophilus cell separation.

Layec S, Gérard J, Legué V, Chapot-Chartier MP, Courtin P, Borges F, Decaris B, Leblond-Bourget N.

Mol Microbiol. 2009 Mar;71(5):1205-17. doi: 10.1111/j.1365-2958.2009.06595.x. Epub 2009 Jan 23.


Characterization of AtlL, a bifunctional autolysin of Staphylococcus lugdunensis with N-acetylglucosaminidase and N-acetylmuramoyl-l-alanine amidase activities.

Bourgeois I, Camiade E, Biswas R, Courtin P, Gibert L, Götz F, Chapot-Chartier MP, Pons JL, Pestel-Caron M.

FEMS Microbiol Lett. 2009 Jan;290(1):105-13. doi: 10.1111/j.1574-6968.2008.01414.x. Epub 2008 Nov 13.


Variations in the degree of D-Alanylation of teichoic acids in Lactococcus lactis alter resistance to cationic antimicrobials but have no effect on bacterial surface hydrophobicity and charge.

Giaouris E, Briandet R, Meyrand M, Courtin P, Chapot-Chartier MP.

Appl Environ Microbiol. 2008 Aug;74(15):4764-7. doi: 10.1128/AEM.00078-08. Epub 2008 Jun 6.


Control of the transcription of a short gene encoding a cyclic peptide in Streptococcus thermophilus: a new quorum-sensing system?

Ibrahim M, Guillot A, Wessner F, Algaron F, Besset C, Courtin P, Gardan R, Monnet V.

J Bacteriol. 2007 Dec;189(24):8844-54. Epub 2007 Oct 5.


Peptidoglycan N-acetylglucosamine deacetylation decreases autolysis in Lactococcus lactis.

Meyrand M, Boughammoura A, Courtin P, Mézange C, Guillot A, Chapot-Chartier MP.

Microbiology. 2007 Oct;153(Pt 10):3275-85.


Enterococcus faecalis constitutes an unusual bacterial model in lysozyme resistance.

Hébert L, Courtin P, Torelli R, Sanguinetti M, Chapot-Chartier MP, Auffray Y, Benachour A.

Infect Immun. 2007 Nov;75(11):5390-8. Epub 2007 Sep 4.


Lactococcus lactis gene yjgB encodes a gamma-D-glutaminyl-L-lysyl-endopeptidase which hydrolyzes peptidoglycan.

Redko Y, Courtin P, Mézange C, Huard C, Chapot-Chartier MP.

Appl Environ Microbiol. 2007 Sep;73(18):5825-31. Epub 2007 Jul 20.


Identification of an essential gene responsible for D-Asp incorporation in the Lactococcus lactis peptidoglycan crossbridge.

Veiga P, Piquet S, Maisons A, Furlan S, Courtin P, Chapot-Chartier MP, Kulakauskas S.

Mol Microbiol. 2006 Dec;62(6):1713-24.


Fatal accidental intrathecal injection of vindesine.

Tournel G, Bécart-Robert A, Courtin P, Hédouin V, Gosset D.

J Forensic Sci. 2006 Sep;51(5):1166-8.


Peptidoglycan structure analysis of Lactococcus lactis reveals the presence of an L,D-carboxypeptidase involved in peptidoglycan maturation.

Courtin P, Miranda G, Guillot A, Wessner F, Mézange C, Domakova E, Kulakauskas S, Chapot-Chartier MP.

J Bacteriol. 2006 Jul;188(14):5293-8.


Acd, a peptidoglycan hydrolase of Clostridium difficile with N-acetylglucosaminidase activity.

Dhalluin A, Bourgeois I, Pestel-Caron M, Camiade E, Raux G, Courtin P, Chapot-Chartier MP, Pons JL.

Microbiology. 2005 Jul;151(Pt 7):2343-51.


[Purulent meningitis and bacteremia from Bacteroides fragilis revealing a meningioma].

Courtin P, Nezri M, Biextrix M, Gallardo M, Dembele A.

Ann Fr Anesth Reanim. 2001 May;20(5):490-3. French.


[Lithium poisoning].

Courtin P, Hansen R, Ulmer B, Gallardo M, Dembele A, Magnin D.

Cah Anesthesiol. 1996;44(4):373-6. French.


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