Journal
BIOCHEMISTRY-MOSCOW
Volume 76, Issue 3, Pages 295-308Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0006297911030023
Keywords
immunoglobulin G; immunoglobulin-binding proteins; Fc-fragment of IgG
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Funding
- Presidium of the Russian Academy of Sciences
- Program Molecular and Cell Biology [051-I-510-018]
- Russian Foundation for Basic Research of the Far-Eastern Division of the Russian Academy of Sciences [09-04-98576]
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Proteins capable of non-immune binding of immunoglobulins G (IgG) of various mammalian species, i.e. without the involvement of the antigen-binding sites of the immunoglobulins, are widespread in bacteria. These proteins are located on the surface of bacterial cells and help them to evade the host's immune response due to protection against the action of complement and to decrease in phagocytosis. This review summarizes data on the structure of immunoglobulin-binding proteins (IBP) and their complexes with IgG. Common and distinctive structural features of IBPs of gram-positive bacteria (staphylococci, streptococci, peptostreptococci) are discussed. Conditions for IBP expression by bacteria and their functional heterogeneity are considered. Data on IBPs of gram-negative bacteria are presented.
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