Brookhaven scientists determine key Lyme disease protein structure


John Dunn, a member of the research team from Brookhaven, explains that the structure of OspC is predominantly helical, and very different from OspA, which is flat. Also, a region on the surface of OspC has a strong negative charge. Dunn says the negatively charged region may be attracted to a positively charged site on the surface of human cells, helping the bacterium to cause infection. This feature is only found in the OspC protein derived from bacterial strains that cause human disease.

The scientists believe that a vaccine based on OspC will be more effective than the current OspA-based vaccine because the OspA protein is only present in the bacteria while they are in the cold-blooded deer ticks stomach, and not in the host. After the tick bites the warm-blooded mammalian host, the injected bacteria produce OspC in the hosts bloodstream.

When the host is vaccinated solely with OspA, antibodies to this protein can only kill the bacterium inside the tick if it ingests these antibodies with its blood-meal. If the bacterium finds its way into the host, it changes into several other forms for which the vaccine offers no protection.

In contrast, an OspC-based vaccine would enable the host to make antibodies to kill the Lyme disease bacteria within the hosts body.

Another member of the Brookhaven team, Subramanyam Swaminathan, added, In order to develop an effective OspC-based vaccine, well have to know the three-dimensional structures of at least a few variants of OspC, especially those from invasive strains. Since weve solved the structure of OspC based on two infectious strains of the Lyme disease bacterium, we now have a prototype for determining the structure of OspC from other strains.


Contact: Diane Greenberg
DOE/Brookhaven National Laboratory

Page: 1 2

Related biology news :

1. Brookhaven lab biophysicist F. William Studier wins R&D 100 award
2. Workshop for new synchrotron light source at Brookhaven
3. Brookhaven Lab expects $30 million to support life sciences
4. Brookhaven Lab develops ThraxVac to clean up anthrax
5. Brookhaven Lab & Battelle collaborate on research that may lead to novel anti-microbial drugs
6. Rice, Brookhaven physicists decode initial stage of cell fusion
7. Brookhaven Lab scientist wins Environmental Mutagen Society Award
8. Brookhaven Spotlights: News from the National Synchrotron Light Source
9. Enzyme studies at Brookhaven Lab may lead to new antiviral agents
10. New Brookhaven Lab study shows how ritalin works
11. New test for radiation damage to DNA developed at Brookhaven Lab

Post Your Comments:

(Date:11/2/2015)... Nov. 2, 2015  SRI International has been awarded ... preclinical development services to the National Cancer Institute (NCI) ... provide scientific expertise, modern testing and support facilities, and ... pharmacology and toxicology studies to evaluate potential cancer prevention ... The PREVENT Cancer Drug Development Program is an NCI-supported ...
(Date:10/29/2015)... , Oct. 29, 2015 Daon, a global ... it has released a new version of its ... North America have already installed ... also includes a FIDO UAF certified server component ... preparing to activate FIDO features. These customers include some ...
(Date:10/29/2015)... NXTD ) ("NXT-ID" or ... the growing mobile commerce market and creator of ... leading marketplace to discover and buy innovative technology ... on StackSocial for this holiday season.   ... a biometric authentication company focused on the growing ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... Nov. 24, 2015 Halozyme Therapeutics, Inc. (NASDAQ: HALO ... New York on Wednesday, December 2 at ... , president and CEO, will provide a corporate overview. ... at 1:00 p.m. ET/10:00 a.m. PT . ... will provide a corporate overview. --> th Annual ...
(Date:11/24/2015)... N.C. , Nov. 24, 2015  Clintrax Global, Inc., a ... North Carolina , today announced that the company has set ... represented a 391% quarter on quarter growth posted for Q3 of ... and Mexico , with the establishment ... in December 2015. --> United Kingdom ...
(Date:11/24/2015)... New York , November 24, 2015 ... to a recent market research report released by Transparency ... projected to expand at a CAGR of 17.5% during ... "Non-invasive Prenatal Testing Market - Global Industry Analysis, Size, ... estimates the global non-invasive prenatal testing market to reach ...
(Date:11/24/2015)... Switzerland (PRWEB) , ... November 24, 2015 , ... InSphero ... organotypic 3D cell culture models, has promoted Melanie Aregger to serve as Chief Operating ... Ms. Aregger served on the management team and was promoted to Head ...
Breaking Biology Technology:
Cached News: