Characterization of a novel fibronectin-binding surface protein in group A streptococci

1995 ◽  
Vol 17 (1) ◽  
pp. 137-145 ◽  
Author(s):  
B. Kreikemeyer ◽  
S.R. Talay ◽  
G.S. Chhatwal
Keyword(s):  
Surface Protein ◽  
Group A Streptococci ◽  
Binding Surface ◽  
Group A ◽  
Fibronectin Binding

Adherence and fibronectin binding are environmentally regulated in the group A streptococci

1993 ◽  
Vol 9 (6) ◽  
pp. 1213-1222 ◽  
Author(s):  
Tambryn VanHeyningen ◽  
George Fogg ◽  
Debra Yates ◽  
Emanuel Hanski ◽  
Michael Caparon
Keyword(s):  
Group A Streptococci ◽  
Group A ◽  
Fibronectin Binding

Molecular and biological characterization of histidine triad protein in group A streptococci

2008 ◽  
Vol 10 (4) ◽  
pp. 414-423 ◽  
Author(s):  
Eiji Kunitomo ◽  
Yutaka Terao ◽  
Shigefumi Okamoto ◽  
Tetsuya Rikimaru ◽  
Shigeyuki Hamada ◽  
...  
Keyword(s):  
Group A Streptococci ◽  
Biological Characterization ◽  
Group A

scholarly journals BIOLOGICAL CHARACTERIZATION OF AN IMMUNOSUPPRESSANT FROM GROUP A STREPTOCOCCI

1971 ◽  
Vol 134 (5) ◽  
pp. 1253-1265 ◽  
Author(s):  
Artin H. Malakian ◽  
John H. Schwab
Keyword(s):  
Antibody Formation ◽  
Memory Cell ◽  
Primary Response ◽  
Repeated Injection ◽  
Group A Streptococci ◽  
Biological Characterization ◽  
Protein Antigens ◽  
Immunosuppressive Action ◽  
Group A

A component in extracts of Group A streptococci suppresses antibody formation in mice against heterologous erythrocyte and protein antigens. Large doses are not toxic and repeated injection does not change its effectiveness. It is most effective when injected 1 or 2 days before antigen and it is not suppressive when given after antigen. The active factor occurs as a large polydisperse complex and activity can be increased 10- to 25-fold by filtration through Sepharose 2B. Both direct (γM) and indirect (γG) antibody-forming cells are suppressed in primary and secondary responses. Injection before a primary response does not reduce memory cell development. It increases rather than depresses the "background" antibody-forming cells to sheep erythrocytes, and is equally effective if injected intraperitoneally or intravenously. Ribonuclease increases activity while deoxyribonuclease has no effect. Proteases destroy immunosuppressive action.

Characterization of Bacteriophages from Nephritogenic Group A Streptococci

1970 ◽  
Vol 121 (4) ◽  
pp. 407-418 ◽  
Author(s):  
L. W. Wannamaker ◽  
S. Skjold ◽  
W. R. Maxted
Keyword(s):  
Group A Streptococci ◽  
Group A

scholarly journals Characterization of the Type I Restriction Modification System Broadly Conserved among Group A Streptococci

mSphere ◽  
2021 ◽  
Author(s):  
Sruti DebRoy ◽  
William C. Shropshire ◽  
Chau Nguyen Tran ◽  
Haiping Hao ◽  
Marc Gohel ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Epigenetic Modification ◽  
Type I ◽  
Whole Genome ◽  
Group A Streptococci ◽  
Modification System ◽  
Restriction Modification System ◽  
Group A ◽  
Restriction Modification

The advent of whole-genome approaches capable of detecting DNA methylation has markedly expanded appreciation of the diverse roles of epigenetic modification in prokaryotic physiology. For example, recent studies have suggested that DNA methylation impacts gene expression in some streptococci.

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