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Originally published In Press as doi:10.1074/jbc.M010062200 on January 3, 2001
J. Biol. Chem., Vol. 276, Issue 13, 10010-10015, March 30, 2001
Crystal Structure of Lyme Disease Antigen Outer Surface
Protein C from Borrelia burgdorferi*
Christoph
Eicken §,
Vivek
Sharma §,
Thomas
Klabunde §¶,
Rick T.
Owens **,
Dagmar S.
Pikas ,
Magnus
Höök , and
James C.
Sacchettini §
From the Department of Biochemistry & Biophysics,
Texas A&M University, College Station, Texas 77843-2128 and
§ The Center for Structural Biology, Albert B. Alkek
Institute of Biosciences and Technology, Houston, Texas 77030-3303 and The Center for Extracellular Matrix Biology, Texas A&M
University System Health Science Center, Albert B. Alkek Institute of
Biosciences and Technology, Houston, Texas 77030-3303
The outer surface protein C (OspC) is one
of the major host-induced antigens of Borrelia burgdorferi,
the causative agent of Lyme disease. We have solved the crystal
structure of recombinant OspC to a resolution of 2.5 Å. OspC, a
largely -helical protein, is a dimer with a characteristic central
four-helical bundle formed by association of the two longest helices
from each subunit. OspC is very different from OspA and similar to the
extracellular domain of the bacterial aspartate receptor and the
variant surface glycoprotein from Trypanosoma brucei. Most
of the surface-exposed residues of OspC are highly variable among
different OspC isolates. The membrane proximal halves of the two long
-helices are the only conserved regions that are solvent accessible.
As vaccination with recombinant OspC has been shown to elicit a
protective immune response in mice, these regions are candidates for
peptide-based vaccines.
*
This work was supported by the Welch Foundation, the
National Institutes of Health, and the Wenner-Gren Foundations, Sweden.The costs of publication of this
article were defrayed in part by the
payment of page charges. The article
must therefore be hereby marked
"advertisement" in
accordance with 18 U.S.C. Section
1734 solely to indicate this fact.
The atomic coordinates and the structure factors (code 1G5Z) have been deposited in the Protein Data Bank, Research Collaboratory for Structural Bioinformatics, Rutgers University, New Brunswick, NJ (http://www.rcsb.org/).
.
¶
Present address: Aventis Pharma Deutschland GmbH, Chemical
Research-Molecular Modeling, Bldg. G838, D-65926 Frankfurt am Main, Germany.
**
Present address: LifeCell Corp., One Millenium Way, Branchburg, NJ 08876.

To whom correspondence should be addressed. Tel.:
1-979-8627636; Fax: 1-979-8627638; E-mail: sacchett@tamu.edu.
Copyright © 2001 by The American Society for Biochemistry and Molecular Biology, Inc.

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Copyright © 2001 by the American Society for Biochemistry and Molecular Biology.
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