Abstract
The lytA gene encoding the autolysin of Streptococcus pneumoniae may be a virulence determinant. Single-strand conformational polymorphism analysis demonstrated heterogenicity throughout the gene in clinical isolates and strains from the clonal serotypes 7 and 14. Sequence analysis of part of the choline-binding domain showed that in two isolates four amino acid substitutions occurred.
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- Carlsen B. D., Kawana M., Kawana C., Tomasz A., Giebink G. S. Role of the bacterial cell wall in middle ear inflammation caused by Streptococcus pneumoniae. Infect Immun. 1992 Jul;60(7):2850–2854. doi: 10.1128/iai.60.7.2850-2854.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Díaz E., López R., García J. L. Role of the major pneumococcal autolysin in the atypical response of a clinical isolate of Streptococcus pneumoniae. J Bacteriol. 1992 Sep;174(17):5508–5515. doi: 10.1128/jb.174.17.5508-5515.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- García J. L., Sánchez-Puelles J. M., García P., López R., Ronda C., García E. Molecular characterization of an autolysin-defective mutant of Streptococcus pneumoniae. Biochem Biophys Res Commun. 1986 Jun 13;137(2):614–619. doi: 10.1016/0006-291x(86)91122-8. [DOI] [PubMed] [Google Scholar]
- García P., García J. L., García E., López R. Nucleotide sequence and expression of the pneumococcal autolysin gene from its own promoter in Escherichia coli. Gene. 1986;43(3):265–272. doi: 10.1016/0378-1119(86)90215-5. [DOI] [PubMed] [Google Scholar]
- García P., García J. L., García E., López R. Purification and characterization of the autolytic glycosidase of Streptococcus pneumoniae. Biochem Biophys Res Commun. 1989 Jan 16;158(1):251–256. doi: 10.1016/s0006-291x(89)80205-0. [DOI] [PubMed] [Google Scholar]
- Gillespie S. H., Smith M. D., Dickens A., Raynes J. G., McAdam K. P. Detection of C-polysaccharide in serum of patients with Streptococcus pneumoniae bacteraemia. J Clin Pathol. 1995 Sep;48(9):803–806. doi: 10.1136/jcp.48.9.803. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gillespie S. H., Ullman C., Smith M. D., Emery V. Detection of Streptococcus pneumoniae in sputum samples by PCR. J Clin Microbiol. 1994 May;32(5):1308–1311. doi: 10.1128/jcm.32.5.1308-1311.1994. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lock R. A., Zhang Q. Y., Berry A. M., Paton J. C. Sequence variation in the Streptococcus pneumoniae pneumolysin gene affecting haemolytic activity and electrophoretic mobility of the toxin. Microb Pathog. 1996 Aug;21(2):71–83. doi: 10.1006/mpat.1996.0044. [DOI] [PubMed] [Google Scholar]
- Markiewicz Z., Tomasz A. Protein-bound choline is released from the pneumococcal autolytic enzyme during adsorption of the enzyme to cell wall particles. J Bacteriol. 1990 May;172(5):2241–2244. doi: 10.1128/jb.172.5.2241-2244.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ronda C., García J. L., García E., Sánchez-Puelles J. M., López R. Biological role of the pneumococcal amidase. Cloning of the lytA gene in Streptococcus pneumoniae. Eur J Biochem. 1987 May 4;164(3):621–624. doi: 10.1111/j.1432-1033.1987.tb11172.x. [DOI] [PubMed] [Google Scholar]
- Takala A. K., Vuopio-Varkila J., Tarkka E., Leinonen M., Musser J. M. Subtyping of common pediatric pneumococcal serotypes from invasive disease and pharyngeal carriage in Finland. J Infect Dis. 1996 Jan;173(1):128–135. doi: 10.1093/infdis/173.1.128. [DOI] [PubMed] [Google Scholar]
- Tomasz A., Saukkonen K. The nature of cell wall-derived inflammatory components of pneumococci. Pediatr Infect Dis J. 1989 Dec;8(12):902–903. doi: 10.1097/00006454-198912000-00034. [DOI] [PubMed] [Google Scholar]
- Tuomanen E., Rich R., Zak O. Induction of pulmonary inflammation by components of the pneumococcal cell surface. Am Rev Respir Dis. 1987 Apr;135(4):869–874. doi: 10.1164/arrd.1987.135.4.869. [DOI] [PubMed] [Google Scholar]
- Tuomanen E., Tomasz A., Hengstler B., Zak O. The relative role of bacterial cell wall and capsule in the induction of inflammation in pneumococcal meningitis. J Infect Dis. 1985 Mar;151(3):535–540. doi: 10.1093/infdis/151.3.535. [DOI] [PubMed] [Google Scholar]
- Tuomanen E., Tomasz A. Mechanism of phenotypic tolerance of nongrowing pneumococci to beta-lactam antibiotics. Scand J Infect Dis Suppl. 1990;74:102–112. [PubMed] [Google Scholar]
- Täuber M. G., Burroughs M., Niemöller U. M., Kuster H., Borschberg U., Tuomanen E. Differences of pathophysiology in experimental meningitis caused by three strains of Streptococcus pneumoniae. J Infect Dis. 1991 Apr;163(4):806–811. doi: 10.1093/infdis/163.4.806. [DOI] [PubMed] [Google Scholar]