Recombinant Borrelia burgdorferi VlsE protein

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Borrelia burgdorferi VlsE also known as Variable major protein-like sequence expressed is a lipoprotein with an approximate mass of 34 kDa. It plays an important role in the bacterial antigenic variation mechanism. VlsE is primarily expressed on the surface of the Borrelia burgdorferi a bacterium responsible for Lyme disease. This protein's high variability allows the pathogen to evade the host immune system making it an essential factor for Borrelia's persistent infection.

Biological function summary

The VlsE protein contributes to immune evasion by altering its surface expression a process important for avoiding antibody-mediated recognition. VlsE does not work in isolation but as part of a system where recombination events in the vls locus lead to changes that prevent host antibodies from effectively targeting the bacteria. This ongoing variation effectively complicates the host's immune response securing a long-term colonization strategy for the pathogen.

Pathways

VlsE engages in the antigenic variation pathway important for microbial persistence in hostile biological environments. This protein's dynamic nature links it to recombination processes involving other bacterial proteins like plasmid-encoded factors. Recombination events at the vls locus continuously alter VlsE's antigenic profile interacting notably with the immune evasion and bacterial survival pathways.

VlsE has a central role in the pathogenesis of Lyme disease the most common vector-borne illness in temperate regions of the Northern Hemisphere. This disorder involves complex interactions with the host's immune system where VlsE pairs with host recognition elements like Toll-like receptors. Successful evasion of host defenses allows Borrelia burgdorferi to cause persistent symptoms such as arthritis and neurological complications. The study of VlsE offers insights into diagnostic markers and potential therapeutic targets for Lyme disease management.