Aim: The aim of this study was to identify and characterize EndoS-like enzymes in Streptococcus dysgalactiae subspecies dysgalactiae (SDSD). Materials & methods: PCR, DNA sequencing, recombinant protein expression, lectin blot, ultra high performance liquid chromatography analysis and a chitinase assay were used to identify ndoS-like genes and characterize EndoSd. Results: EndoSd were found in four SDSD strains. EndoSd hydrolyzes the chitobiose core of the glycan on IgG. The amino acid sequence of EndoSd is 70% identical to EndoS in S. pyogenes, but it has a unique C-terminal sequence. EndoSd secretion is influenced by the carbohydrate composition of the growth medium. Conclusion: Our findings indicate that IgG glycan hydrolyzing activity is present in SDSD, and that the activity can be attributed to the here identified enzyme EndoSd.
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Univ Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Monash Hlth, Monash Infect Dis, Melbourne, Vic, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Xie, Ouli
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Zachreson, Cameron
Tonkin-Hill, Gerry
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Univ Oslo, Dept Biostat, Oslo, NorwayUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Tonkin-Hill, Gerry
Price, David J.
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Univ Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Univ Melbourne, Ctr Epidemiol & Biostat, Melbourne Sch Populat & Global Hlth, Melbourne, Vic, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Price, David J.
Lacey, Jake A.
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Univ Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Univ Melbourne, Dept Microbiol & Immunol, Peter Doherty Inst Infect & Immun, Melbourne, Vic, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Lacey, Jake A.
Morris, Jacqueline M.
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Univ Melbourne, Dept Microbiol & Immunol, Peter Doherty Inst Infect & Immun, Melbourne, Vic, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Morris, Jacqueline M.
Mcdonald, Malcolm I.
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James Cook Univ, Div Trop Hlth & Med, Townsville, Qld, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Mcdonald, Malcolm I.
Bowen, Asha C.
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Univ Western Australia, Telethon Kids Inst, Wesfarmers Ctr Vaccines & Infect Dis, Perth, WA, Australia
Perth Childrens Hosp, Perth, WA, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Bowen, Asha C.
Giffard, Philip M.
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Charles Darwin Univ, Menzies Sch Hlth Res, Global & Trop Hlth Div, Darwin, NT, Australia
Charles Darwin Univ, Fac Hlth, Darwin, NT, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Giffard, Philip M.
Currie, Bart J.
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Charles Darwin Univ, Menzies Sch Hlth Res, Global & Trop Hlth Div, Darwin, NT, Australia
Royal Darwin Hosp, Infect Dis Dept, Darwin, NT, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Currie, Bart J.
Carapetis, Jonathan R.
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Univ Western Australia, Telethon Kids Inst, Wesfarmers Ctr Vaccines & Infect Dis, Perth, WA, Australia
Perth Childrens Hosp, Perth, WA, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
Carapetis, Jonathan R.
Holt, Deborah C.
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Charles Darwin Univ, Menzies Sch Hlth Res, Global & Trop Hlth Div, Darwin, NT, AustraliaUniv Melbourne, Dept Infect Dis, Peter Doherty Inst Infect & Immun, Melbourne, Vic, Australia
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Queensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
Griffith Med Res Coll, Brisbane, Qld, AustraliaQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
McMillan, David J.
Kaul, Santosh Y.
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King Edward Mem Hosp, Dept Microbiol, Bombay, Maharashtra, IndiaQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
Kaul, Santosh Y.
Bramhachari, P. V.
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Indian Inst Sci, Dept Microbiol & Cell Biol, Bangalore 560012, Karnataka, IndiaQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
Bramhachari, P. V.
Smeesters, Pierre R.
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Univ Libre Bruxelles, Fac Sci, Inst Biol & Med Mol, Lab Genet & Physiol Bacterienne, Brussels, BelgiumQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
Smeesters, Pierre R.
Vu, Therese
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Griffith Med Res Coll, Brisbane, Qld, AustraliaQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
Vu, Therese
Karmarkar, M. G.
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King Edward Mem Hosp, Dept Microbiol, Bombay, Maharashtra, IndiaQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
Karmarkar, M. G.
Shaila, Melkote S.
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Indian Inst Sci, Dept Microbiol & Cell Biol, Bangalore 560012, Karnataka, IndiaQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia
Shaila, Melkote S.
Sriprakash, Kadaba S.
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Queensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, AustraliaQueensland Inst Med Res, Bacterial Pathogenesis Lab, Brisbane, Qld 4006, Australia