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Expression, purification and X-ray crystallographic analysis of the Helicobacter pylori blood group antigen-binding adhesin BabA
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2014 (English)In: Acta Crystallographica. Section F: Structural Biology and Crystallization Communications, ISSN 1744-3091, E-ISSN 1744-3091, Vol. 70, 1631-1635 p.Article in journal (Refereed) Published
Abstract [en]

Helicobacter pylori is a human pathogen that colonizes about 50% of the world's population, causing chronic gastritis, duodenal ulcers and even gastric cancer. A steady emergence of multiple antibiotic resistant strains poses an important public health threat and there is an urgent requirement for alternative therapeutics. The blood group antigen-binding adhesin BabA mediates the intimate attachment to the host mucosa and forms a major candidate for novel vaccine and drug development. Here, the recombinant expression and crystallization of a soluble BabA truncation (BabA(25-460)) corresponding to the predicted extracellular adhesin domain of the protein are reported. X-ray diffraction data for nanobody-stabilized BabA 25-460 were collected to 2.25 angstrom resolution from a crystal that belonged to space group P2(1), with unit-cell parameters a = 50.96, b = 131.41, c = 123.40 angstrom, alpha = 90.0, beta = 94.8, gamma = 90.0 degrees, and which was predicted to contain two BabA(25-460)-nanobody complexes per asymmetric unit.

Place, publisher, year, edition, pages
2014. Vol. 70, 1631-1635 p.
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Biochemistry and Molecular Biology
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URN: urn:nbn:se:umu:diva-98848DOI: 10.1107/S2053230X14023188ISI: 000345843300013OAI: oai:DiVA.org:umu-98848DiVA: diva2:793886
Available from: 2015-03-09 Created: 2015-01-27 Last updated: 2017-12-04Bibliographically approved

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Bugaytsova, JeannaBorén, Thomas
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Department of Medical Biochemistry and Biophysics
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Acta Crystallographica. Section F: Structural Biology and Crystallization Communications
Biochemistry and Molecular Biology

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  • de-DE
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