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. 1990 Jun;172(6):3310–3317. doi: 10.1128/jb.172.6.3310-3317.1990

Sequence and structural characteristics of the trypsin-resistant T6 surface protein of group A streptococci.

O Schneewind 1, K F Jones 1, V A Fischetti 1
PMCID: PMC209141  PMID: 2188957

Abstract

The gene for the trypsin-resistant surface T6 protein of Streptococcus pyogenes D471 (M type 6) was cloned and expressed in Escherichia coli. The complete nucleotide sequence of the gene (tee6) and its flanking regions was determined and found to include only one major open reading frame coding for a protein of 537 amino acids (Mr, 57,675). The N terminus of the deduced protein sequence exhibits features of a typical signal sequence, and the C-terminal segment was found to have a high degree of homology with the membrane anchor region of other gram-positive surface proteins, such as streptococcal M protein, wapA protein from Streptococcus mutans and staphylococcal protein A. A hexapeptide having the consensus sequence LPSTGE and located immediately upstream of the C-terminal hydrophobic segment showed the highest degree of conservation at both the protein and DNA levels, with nearly all reported surface proteins from gram-positive cocci. The amino acid composition of the T6 protein revealed 21% serine and threonine residues distributed nearly regularly throughout the molecule, and analysis of the secondary structure predicted a conformation composed of greater than 70% beta-sheet potential interrupted by beta-turns or random coils. Localization experiments in E. coli show very little T6 protein in the periplasmic space. When found here, however, this T6 protein had a molecular mass of 55 kilodaltons, similar to that extracted from the streptococci by nonionic detergent. Most of the T6 protein was found localized in the membrane fraction, where it was composed of a triple band of 60, 58, and 57 kilodaltons. The coexistence of streptococcal surface proteins which are either resistant (T protein) or sensitive (M protein) to proteolytic enzymes may offer a new dimension to the modulation of these antigens under specific biological conditions.

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Selected References

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  1. BECKER C. G. SELECTION OF GROUP A STREPTOCOCCI RICH IN M-PROTEIN FROM POPULATIONS POOR IN M-PROTEIN. Am J Pathol. 1964 Jan;44:51–60. [PMC free article] [PubMed] [Google Scholar]
  2. Davis N. G., Boeke J. D., Model P. Fine structure of a membrane anchor domain. J Mol Biol. 1985 Jan 5;181(1):111–121. doi: 10.1016/0022-2836(85)90329-8. [DOI] [PubMed] [Google Scholar]
  3. Eisenberg D., Schwarz E., Komaromy M., Wall R. Analysis of membrane and surface protein sequences with the hydrophobic moment plot. J Mol Biol. 1984 Oct 15;179(1):125–142. doi: 10.1016/0022-2836(84)90309-7. [DOI] [PubMed] [Google Scholar]
  4. Fahnestock S. R., Alexander P., Nagle J., Filpula D. Gene for an immunoglobulin-binding protein from a group G streptococcus. J Bacteriol. 1986 Sep;167(3):870–880. doi: 10.1128/jb.167.3.870-880.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Ferguson M. A., Williams A. F. Cell-surface anchoring of proteins via glycosyl-phosphatidylinositol structures. Annu Rev Biochem. 1988;57:285–320. doi: 10.1146/annurev.bi.57.070188.001441. [DOI] [PubMed] [Google Scholar]
  6. Ferretti J. J., Russell R. R., Dao M. L. Sequence analysis of the wall-associated protein precursor of Streptococcus mutans antigen A. Mol Microbiol. 1989 Apr;3(4):469–478. doi: 10.1111/j.1365-2958.1989.tb00193.x. [DOI] [PubMed] [Google Scholar]
  7. Fischetti V. A., Gotschlich E. C., Bernheimer A. W. Purification and physical properties of group C streptococcal phage-associated lysin. J Exp Med. 1971 May 1;133(5):1105–1117. doi: 10.1084/jem.133.5.1105. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Fischetti V. A., Jones K. F., Manjula B. N., Scott J. R. Streptococcal M6 protein expressed in Escherichia coli. Localization, purification, and comparison with streptococcal-derived M protein. J Exp Med. 1984 Apr 1;159(4):1083–1095. doi: 10.1084/jem.159.4.1083. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Fischetti V. A. Streptococcal M protein: molecular design and biological behavior. Clin Microbiol Rev. 1989 Jul;2(3):285–314. doi: 10.1128/cmr.2.3.285. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Frischauf A. M., Lehrach H., Poustka A., Murray N. Lambda replacement vectors carrying polylinker sequences. J Mol Biol. 1983 Nov 15;170(4):827–842. doi: 10.1016/s0022-2836(83)80190-9. [DOI] [PubMed] [Google Scholar]
  11. Frithz E., Hedén L. O., Lindahl G. Extensive sequence homology between IgA receptor and M proteins in Streptococcus pyogenes. Mol Microbiol. 1989 Aug;3(8):1111–1119. doi: 10.1111/j.1365-2958.1989.tb00261.x. [DOI] [PubMed] [Google Scholar]
  12. Garnier J., Osguthorpe D. J., Robson B. Analysis of the accuracy and implications of simple methods for predicting the secondary structure of globular proteins. J Mol Biol. 1978 Mar 25;120(1):97–120. doi: 10.1016/0022-2836(78)90297-8. [DOI] [PubMed] [Google Scholar]
  13. Guss B., Uhlén M., Nilsson B., Lindberg M., Sjöquist J., Sjödahl J. Region X, the cell-wall-attachment part of staphylococcal protein A. Eur J Biochem. 1984 Jan 16;138(2):413–420. doi: 10.1111/j.1432-1033.1984.tb07931.x. [DOI] [PubMed] [Google Scholar]
  14. Heath D. G., Cleary P. P. Fc-receptor and M-protein genes of group A streptococci are products of gene duplication. Proc Natl Acad Sci U S A. 1989 Jun;86(12):4741–4745. doi: 10.1073/pnas.86.12.4741. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Hollingshead S. K., Fischetti V. A., Scott J. R. Complete nucleotide sequence of type 6 M protein of the group A Streptococcus. Repetitive structure and membrane anchor. J Biol Chem. 1986 Feb 5;261(4):1677–1686. [PubMed] [Google Scholar]
  16. Johnson R. H., Vosti K. L. Purification and characterization of group A streptococcal T-1 antigen. Infect Immun. 1977 Jun;16(3):867–875. doi: 10.1128/iai.16.3.867-875.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Karn J., Brenner S., Barnett L., Cesareni G. Novel bacteriophage lambda cloning vector. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5172–5176. doi: 10.1073/pnas.77.9.5172. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Kokx N. P., Comstock J. A., Facklam R. R. Streptococcal perianal disease in children. Pediatrics. 1987 Nov;80(5):659–663. [PubMed] [Google Scholar]
  19. LANCEFIELD R. C. Current knowledge of type-specific M antigens of group A streptococci. J Immunol. 1962 Sep;89:307–313. [PubMed] [Google Scholar]
  20. Lipke P. N., Wojciechowicz D., Kurjan J. AG alpha 1 is the structural gene for the Saccharomyces cerevisiae alpha-agglutinin, a cell surface glycoprotein involved in cell-cell interactions during mating. Mol Cell Biol. 1989 Aug;9(8):3155–3165. doi: 10.1128/mcb.9.8.3155. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Ludwicka A., Kłoczewiak M. Characterization of group A streptococcal T-12 protein purified by ion-exchange column chromatography. Infect Immun. 1978 Sep;21(3):940–945. doi: 10.1128/iai.21.3.940-945.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. O'Connor S. P., Cleary P. P. In vivo Streptococcus pyogenes C5a peptidase activity: analysis using transposon- and nitrosoguanidine-induced mutants. J Infect Dis. 1987 Sep;156(3):495–504. doi: 10.1093/infdis/156.3.495. [DOI] [PubMed] [Google Scholar]
  23. Pancholi V., Fischetti V. A. Identification of an endogenous membrane anchor-cleaving enzyme for group A streptococcal M protein. Its implication for the attachment of surface proteins in gram-positive bacteria. J Exp Med. 1989 Dec 1;170(6):2119–2133. doi: 10.1084/jem.170.6.2119. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Pancholi V., Fischetti V. A. Isolation and characterization of the cell-associated region of group A streptococcal M6 protein. J Bacteriol. 1988 Jun;170(6):2618–2624. doi: 10.1128/jb.170.6.2618-2624.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Pearson W. R., Lipman D. J. Improved tools for biological sequence comparison. Proc Natl Acad Sci U S A. 1988 Apr;85(8):2444–2448. doi: 10.1073/pnas.85.8.2444. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Phillips G. N., Jr, Flicker P. F., Cohen C., Manjula B. N., Fischetti V. A. Streptococcal M protein: alpha-helical coiled-coil structure and arrangement on the cell surface. Proc Natl Acad Sci U S A. 1981 Aug;78(8):4689–4693. doi: 10.1073/pnas.78.8.4689. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Saunders S., Jalkanen M., O'Farrell S., Bernfield M. Molecular cloning of syndecan, an integral membrane proteoglycan. J Cell Biol. 1989 Apr;108(4):1547–1556. doi: 10.1083/jcb.108.4.1547. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Schneewind O., Friedrich K., Lütticken R. Cloning and expression of the CAMP factor of group B streptococci in Escherichia coli. Infect Immun. 1988 Aug;56(8):2174–2179. doi: 10.1128/iai.56.8.2174-2179.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Signäs C., Raucci G., Jönsson K., Lindgren P. E., Anantharamaiah G. M., Hök M., Lindberg M. Nucleotide sequence of the gene for a fibronectin-binding protein from Staphylococcus aureus: use of this peptide sequence in the synthesis of biologically active peptides. Proc Natl Acad Sci U S A. 1989 Jan;86(2):699–703. doi: 10.1073/pnas.86.2.699. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Singer S. J., Nicolson G. L. The fluid mosaic model of the structure of cell membranes. Science. 1972 Feb 18;175(4023):720–731. doi: 10.1126/science.175.4023.720. [DOI] [PubMed] [Google Scholar]
  32. Stevens D. L., Tanner M. H., Winship J., Swarts R., Ries K. M., Schlievert P. M., Kaplan E. Severe group A streptococcal infections associated with a toxic shock-like syndrome and scarlet fever toxin A. N Engl J Med. 1989 Jul 6;321(1):1–7. doi: 10.1056/NEJM198907063210101. [DOI] [PubMed] [Google Scholar]
  33. Swanson J., Hsu K. C., Gotschlich E. C. Electron microscopic studies on streptococci. I. M antigen. J Exp Med. 1969 Nov 1;130(5):1063–1091. doi: 10.1084/jem.130.5.1063. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Takeshita S., Sato M., Toba M., Masahashi W., Hashimoto-Gotoh T. High-copy-number and low-copy-number plasmid vectors for lacZ alpha-complementation and chloramphenicol- or kanamycin-resistance selection. Gene. 1987;61(1):63–74. doi: 10.1016/0378-1119(87)90365-9. [DOI] [PubMed] [Google Scholar]
  35. Yanisch-Perron C., Vieira J., Messing J. Improved M13 phage cloning vectors and host strains: nucleotide sequences of the M13mp18 and pUC19 vectors. Gene. 1985;33(1):103–119. doi: 10.1016/0378-1119(85)90120-9. [DOI] [PubMed] [Google Scholar]
  36. Zimmermann D. R., Ruoslahti E. Multiple domains of the large fibroblast proteoglycan, versican. EMBO J. 1989 Oct;8(10):2975–2981. doi: 10.1002/j.1460-2075.1989.tb08447.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. von Heijne G. A new method for predicting signal sequence cleavage sites. Nucleic Acids Res. 1986 Jun 11;14(11):4683–4690. doi: 10.1093/nar/14.11.4683. [DOI] [PMC free article] [PubMed] [Google Scholar]

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