Molecular basis for the structural diversity in serogroup O2-antigen polysaccharides in Klebsiella pneumoniae

被引:44
作者
Clarke, Bradley R. [1 ]
Ovchinnikova, Olga G. [1 ]
Kelly, Steven D. [1 ]
Williamson, Monica L. [1 ]
Butler, Jennifer E. [1 ]
Liu, Bin [2 ]
Wang, Lu [2 ]
Gou, Xi [2 ]
Follador, Rainer [3 ]
Lowary, Todd L. [4 ,5 ]
Whitfield, Chris [1 ]
机构
[1] Univ Guelph, Dept Mol & Cellular Biol, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada
[2] Nankai Univ, TEDA Inst Biol Sci & Biotechnol, 23 Hongda St TEDA, Tianjin 300457, Peoples R China
[3] LimmaTech Biol AG, CH-8952 Schlieren, Switzerland
[4] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada
[5] Univ Alberta, Alberta Glyc Ctr, Edmonton, AB T6G 2G2, Canada
关键词
LIPOPOLYSACCHARIDE O-ANTIGEN; D-GALACTAN-I; GENOMIC ANALYSIS; SEROTYPE O1-K20; IDENTIFICATION; BIOSYNTHESIS; GENE; RESISTANCE; VIRULENCE; MEMBRANE;
D O I
10.1074/jbc.RA117.000646
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Klebsiella pneumoniae is a major health threat. Vaccination and passive immunization are considered as alternative therapeutic strategies for managing Klebsiella infections. Lipopolysaccharide O antigens are attractive candidates because of the relatively small range of known O-antigen polysaccharide structures, but immunotherapeutic applications require a complete understanding of the structures found in clinical settings. Currently, the precise number of Klebsiella O antigens is unknown because available serological tests have limited resolution, and their association with defined chemical structures is sometimes uncertain. Molecular serotyping methods can evaluate clinical prevalence of Oserotypes but require a full understanding of the genetic determinants for each O-antigen structure. This is problematic with Klebsiella pneumoniae because genes outside the main rfb (O-antigen biosynthesis) locus can have profound effects on the final structure. Here, we report two new loci encoding enzymes that modify a conserved polysaccharide backbone comprising disaccharide repeat units [-> 3)-alpha-D-Galp-( 1 -> 3)-beta-D-Galf-(1 ->] (O2a antigen). We identified in serotype O2aeh a three-component system that modifies completed O2a glycan in the periplasm by adding 1,2-linked alpha-Galp side-group residues. In serotype O2ac, a polysaccharide comprising disaccharide repeat units [-> 5)-beta-D-Galf-(1 -> 3)-beta-D-GlcpNAc-(1 ->] (O2c antigen) is attached to the non-reducing termini of O2a-antigen chains. O2c-polysaccharide synthesis is dependent on a locus encoding three glycosyltransferase enzymes. The authentic O2aeh and O2c antigens were recapitulated in recombinant Escherichia coli hosts to establish the essential gene set for their synthesis. These findings now provide a complete understanding of the molecular genetic basis for the known variations in Klebsiella O-antigen carbohydrate structures based on the O2a backbone.
引用
收藏
页码:4666 / 4679
页数:14
相关论文
共 72 条
[1]   BASIC LOCAL ALIGNMENT SEARCH TOOL [J].
ALTSCHUL, SF ;
GISH, W ;
MILLER, W ;
MYERS, EW ;
LIPMAN, DJ .
JOURNAL OF MOLECULAR BIOLOGY, 1990, 215 (03) :403-410
[2]  
[Anonymous], [No title captured]
[3]  
[Anonymous], 1986, FOCUS, V8, P9
[4]   Structure of the polyisoprenyl-phosphate glycosyltransferase GtrB and insights into the mechanism of catalysis [J].
Ardiccioni, Chiara ;
Clarke, Oliver B. ;
Tomasek, David ;
Issa, Habon A. ;
von Alpen, Desiree C. ;
Pond, Heather L. ;
Banerjee, Surajit ;
Rajashankar, Kanagalaghatta R. ;
Liu, Qun ;
Guan, Ziqiang ;
Li, Chijun ;
Kloss, Brian ;
Bruni, Renato ;
Kloppmann, Edda ;
Rost, Burkhard ;
Manzini, M. Chiara ;
Shapiro, Lawrence ;
Mancia, Filippo .
NATURE COMMUNICATIONS, 2016, 7
[5]   The RAST server: Rapid annotations using subsystems technology [J].
Aziz, Ramy K. ;
Bartels, Daniela ;
Best, Aaron A. ;
DeJongh, Matthew ;
Disz, Terrence ;
Edwards, Robert A. ;
Formsma, Kevin ;
Gerdes, Svetlana ;
Glass, Elizabeth M. ;
Kubal, Michael ;
Meyer, Folker ;
Olsen, Gary J. ;
Olson, Robert ;
Osterman, Andrei L. ;
Overbeek, Ross A. ;
McNeil, Leslie K. ;
Paarmann, Daniel ;
Paczian, Tobias ;
Parrello, Bruce ;
Pusch, Gordon D. ;
Reich, Claudia ;
Stevens, Rick ;
Vassieva, Olga ;
Vonstein, Veronika ;
Wilke, Andreas ;
Zagnitko, Olga .
BMC GENOMICS, 2008, 9 (1)
[6]   SPAdes: A New Genome Assembly Algorithm and Its Applications to Single-Cell Sequencing [J].
Bankevich, Anton ;
Nurk, Sergey ;
Antipov, Dmitry ;
Gurevich, Alexey A. ;
Dvorkin, Mikhail ;
Kulikov, Alexander S. ;
Lesin, Valery M. ;
Nikolenko, Sergey I. ;
Son Pham ;
Prjibelski, Andrey D. ;
Pyshkin, Alexey V. ;
Sirotkin, Alexander V. ;
Vyahhi, Nikolay ;
Tesler, Glenn ;
Alekseyev, Max A. ;
Pevzner, Pavel A. .
JOURNAL OF COMPUTATIONAL BIOLOGY, 2012, 19 (05) :455-477
[7]   Regulatory network of lipopolysaccharide O-antigen biosynthesis in Yersinia enterocolitica includes cell envelope-dependent signals [J].
Bengoechea, JA ;
Zhang, LH ;
Toivanen, P ;
Skurnik, M .
MOLECULAR MICROBIOLOGY, 2002, 44 (04) :1045-1062
[8]   C-13 NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPY OF MONOSACCHARIDES [J].
BOCK, K ;
PEDERSEN, C .
ADVANCES IN CARBOHYDRATE CHEMISTRY AND BIOCHEMISTRY, 1983, 41 :27-66
[9]   Bad Bugs, No Drugs: No ESKAPE! An Update from the Infectious Diseases Society of America [J].
Boucher, Helen W. ;
Talbot, George H. ;
Bradley, John S. ;
Edwards, John E., Jr. ;
Gilbert, David ;
Rice, Louis B. ;
Scheld, Michael ;
Spellberg, Brad ;
Bartlett, John .
CLINICAL INFECTIOUS DISEASES, 2009, 48 (01) :1-12
[10]   IDENTIFICATION OF AN ATP-BINDING CASSETTE TRANSPORT-SYSTEM REQUIRED FOR TRANSLOCATION OF LIPOPOLYSACCHARIDE O-ANTIGEN SIDE-CHAINS ACROSS THE CYTOPLASMIC MEMBRANE OF KLEBSIELLA-PNEUMONIAE SEROTYPE O1 [J].
BRONNER, D ;
CLARKE, BR ;
WHITFIELD, C .
MOLECULAR MICROBIOLOGY, 1994, 14 (03) :505-519