Cloning and expression of soluble truncated variants of Borrelia OspA, OspB and Vmp7
Patent
·
OSTI ID:392642
A method is provided for preparing soluble recombinant variations of Borrelia lipoproteins such as Borrelia burgdorferi outer surface protein A (OspA) and outer surface protein B (OspB), and B. hermsii variable major protein 7 (Vmp7). The method includes synthesizing a set of oligonucleotide primers, amplifying the template DNA utilizing the PCR, purifying the amplification products, cloning the amplification products into a suitable expression vector, transforming a suitable host utilizing the cloned expression vector, cultivating the transformed host for protein production and subsequently isolating and purifying the resulting protein. Also provided are soluble, recombinant variations of Borrelia burgdorferi outer surface protein A (OspA), outer surface protein B (OspB), and B. hermsii variable major protein 7 (Vmp7). The expression vectors harboring DNA encoding the recombinant variations, pET9-OspA, pET9-OspB and pET9-Vmp7, as well as the E. coli host BL21(DE3)/pLysS transformed with each of these vectors, are also disclosed. 38 figs.
- Research Organization:
- Associated Universities Inc
- DOE Contract Number:
- AC02-76CH00016
- Assignee:
- Associated Universities, Inc., Washington, DC (United States)
- Patent Number(s):
- US 5,571,718/A/
- Application Number:
- PAN: 7-941,523
- OSTI ID:
- 392642
- Country of Publication:
- United States
- Language:
- English
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