Abstract: Provided herein are OspA polypeptides from Lyme Disease-causing Borrelia having certain alteration(s). In one embodiment, the alteration(s) increase the conformational stability of the OspA polypeptide containing the alteration(s) while maintaining at least some of the antigenicity of the corresponding unaltered OspA polypeptide. In another embodiment, the altered OspA polypeptide has reduced cross-reactivity to hLFA-1, as compared to the corresponding unaltered OspA polypeptide.

Abstract: Provided herein are OspA polypeptides from Lyme Disease-causing Borrelia having certain alteration(s). In one embodiment, the alteration(s) increase the conformational stability of the OspA polypeptide containing the alteration(s) while maintaining at least some of the antigenicity of the corresponding unaltered OspA polypeptide. In another embodiment, the altered OspA polypeptide has reduced cross-reactivity to hLFA-1, as compared to the corresponding unaltered OspA polypeptide.

Abstract: Provided herein are OspA polypeptides from Lyme Disease-causing Borrelia having certain alteration(s). In one embodiment, the alteration(s) increase the conformational stability of the OspA polypeptide containing the alteration(s) while maintaining at least some of the antigenicity of the corresponding unaltered OspA polypeptide. In another embodiment, the altered OspA polypeptide has reduced cross-reactivity to hLFA-1, as compared to the corresponding unaltered OspA polypeptide.

Abstract: The invention relates to the development of chimeric OspA molecules for use in a new Lyme vaccine. More specifically, the chimeric OspA molecules comprise the proximal portion from one OspA serotype, together with the distal portion from another OspA serotype, while retaining antigenic properties of both of the parent polypeptides. The chimeric OspA molecules are delivered alone or in combination to provide protection against a variety of Borrelia genospecies. The invention also provides methods for administering the chimeric OspA molecules to a subject in the prevention and treatment of Lyme disease or borreliosis.

Abstract: Provided herein are OspA polypeptides from Lyme Disease-causing Borrelia having certain alteration(s). In one embodiment, the alteration(s) increase the conformational stability of the OspA polypeptide containing the alteration(s) while maintaining at least some of the antigenicity of the corresponding unaltered OspA polypeptide. In another embodiment, the altered OspA polypeptide has reduced cross-reactivity to hLFA-1, as compared to the corresponding unaltered OspA polypeptide.

Abstract: Novel chimeric nucleic acids, encoding chimeric Borrelia proteins comprising OspC or an antigenic fragment thereof and OspA or an antigenic fragment thereof, are disclosed. Chimeric proteins encoded by the nucleic acid sequences are also disclosed. The chimeric proteins are useful as vaccine immunogens against Lyme borreliosis, as well as for immunodiagnostic reagents.

Abstract: Novel chimeric nucleic acids, encoding chimeric Borrelia proteins comprising OspC or an antigenic fragment thereof and OspA or an antigenic fragment thereof, are disclosed. Chimeric proteins encoded by the nucleic acid sequences are also disclosed. The chimeric proteins are useful as vaccine immunogens against Lyme borreliosis, as well as for immunodiagnostic reagents.

Abstract: Novel chimeric nucleic acids, encoding chimeric Borrelia proteins comprising OspC or an antigenic fragment thereof and OspA or an antigenic fragment thereof, are disclosed. Chimeric proteins encoded by the nucleic acid sequences are also disclosed. The chimeric proteins are useful as vaccine immunogens against Lyme borreliosis, as well as for immunodiagnostic reagents.

Abstract: Provided herein are OspA polypeptides from Lyme Disease-causing Borrelia having certain alteration(s). In one embodiment, the alteration(s) increase the conformational stability of the OspA polypeptide containing the alteration(s) while maintaining at least some of the antigenicity of the corresponding unaltered OspA polypeptide. In another embodiment, the altered OspA polypeptide has reduced cross-reactivity to hLFA-1, as compared to the corresponding unaltered OspA polypeptide.