2bhm
From Proteopedia
(New page: 200px<br /><applet load="2bhm" size="450" color="white" frame="true" align="right" spinBox="true" caption="2bhm, resolution 2.4Å" /> '''CRYSTAL STRUCTURE OF ...) |
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| - | [[Image:2bhm.gif|left|200px]]<br /><applet load="2bhm" size=" | + | [[Image:2bhm.gif|left|200px]]<br /><applet load="2bhm" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="2bhm, resolution 2.4Å" /> | caption="2bhm, resolution 2.4Å" /> | ||
'''CRYSTAL STRUCTURE OF VIRB8 FROM BRUCELLA SUIS'''<br /> | '''CRYSTAL STRUCTURE OF VIRB8 FROM BRUCELLA SUIS'''<br /> | ||
==Overview== | ==Overview== | ||
| - | Type IV secretion systems (T4SSs) are commonly used secretion machineries | + | Type IV secretion systems (T4SSs) are commonly used secretion machineries in Gram-negative bacteria. They are used in the infection of human, animal, or plant cells and the propagation of antibiotic resistance. The T4SS apparatus spans both membranes of the bacterium and generally is composed of 12 proteins, named VirB1-11 and VirD4 after proteins of the canonical Agrobacterium tumefaciens T4SS. The periplasmic core complex of VirB8/VirB10 structurally and functionally links the cytoplasmic NTPases of the system with its outer membrane and pilus components. Here we present crystal structures of VirB8 of Brucella suis, the causative agent of brucellosis, and ComB10, a VirB10 homolog of Helicobacter pylori, the causative agent of gastric ulcers. The structures of VirB8 and ComB10 resemble known folds, albeit with novel secondary-structure modifications unique to and conserved within their respective families. Both proteins crystallized as dimers, providing detailed predictions about their self associations. These structures make a substantial contribution to the repertoire of T4SS component structures and will serve as springboards for future functional and protein-protein interaction studies by using knowledge-based site-directed and deletion mutagenesis. |
==About this Structure== | ==About this Structure== | ||
| - | 2BHM is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Brucella_suis Brucella suis]. Full crystallographic information is available from [http:// | + | 2BHM is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Brucella_suis Brucella suis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BHM OCA]. |
==Reference== | ==Reference== | ||
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[[Category: bacterial type iv secretion]] | [[Category: bacterial type iv secretion]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:37:54 2008'' |
Revision as of 14:37, 21 February 2008
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CRYSTAL STRUCTURE OF VIRB8 FROM BRUCELLA SUIS
Overview
Type IV secretion systems (T4SSs) are commonly used secretion machineries in Gram-negative bacteria. They are used in the infection of human, animal, or plant cells and the propagation of antibiotic resistance. The T4SS apparatus spans both membranes of the bacterium and generally is composed of 12 proteins, named VirB1-11 and VirD4 after proteins of the canonical Agrobacterium tumefaciens T4SS. The periplasmic core complex of VirB8/VirB10 structurally and functionally links the cytoplasmic NTPases of the system with its outer membrane and pilus components. Here we present crystal structures of VirB8 of Brucella suis, the causative agent of brucellosis, and ComB10, a VirB10 homolog of Helicobacter pylori, the causative agent of gastric ulcers. The structures of VirB8 and ComB10 resemble known folds, albeit with novel secondary-structure modifications unique to and conserved within their respective families. Both proteins crystallized as dimers, providing detailed predictions about their self associations. These structures make a substantial contribution to the repertoire of T4SS component structures and will serve as springboards for future functional and protein-protein interaction studies by using knowledge-based site-directed and deletion mutagenesis.
About this Structure
2BHM is a Single protein structure of sequence from Brucella suis. Full crystallographic information is available from OCA.
Reference
Structures of two core subunits of the bacterial type IV secretion system, VirB8 from Brucella suis and ComB10 from Helicobacter pylori., Terradot L, Bayliss R, Oomen C, Leonard GA, Baron C, Waksman G, Proc Natl Acad Sci U S A. 2005 Mar 22;102(12):4596-601. Epub 2005 Mar 11. PMID:15764702
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