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The Kinetic Signatures Of Antibody Binding To M. Genitalium Adhesin Protein Fragments, Margaret C. Lunn
The Kinetic Signatures Of Antibody Binding To M. Genitalium Adhesin Protein Fragments, Margaret C. Lunn
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Mycoplasma genitalium is a sexually-transmitted bacterial pathogen that persists in patients by adherence to cells through matrix glycoproteins and evasion of host antibodies. The MgpB and MgpC adherence proteins consist of variable and conserved regions. Variable regions undergo antigenic variation to avoid specific antibodies. However, the C-terminus (MgpB-4a) does not vary, is highly immunogenic, and antibodies to this region inhibit attachment and promote bacterial killing in vitro. To better understand how M. genitalium avoids clearance by antibodies to MgpB-4a in vivo we used surface plasmon resonance (SPR) to measure kinetic values of binding events. Binding of polyclonal rabbit antibodies (3935 …