2axw: Difference between revisions
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New page: left|200px<br /><applet load="2axw" size="350" color="white" frame="true" align="right" spinBox="true" caption="2axw, resolution 1.05Å" /> '''Structure of DraD in... |
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==Overview== | ==Overview== | ||
The dra gene cluster of uropathogenic strains of Escherichia coli produces | The dra gene cluster of uropathogenic strains of Escherichia coli produces proteins involved in bacterial attachment to and invasion of the eukaryotic host tissues. The crystal structure of a construct of E. coli DraD possessing an additional C-terminal extension of 13 amino acids, including a His6 tag, has been solved at a resolution of 1.05 angstroms. The protein forms symmetric dimers through the exchange of the C-terminal beta-strands, which participate in the immunoglobulin-like beta-sandwich fold of each subunit. This structure confirms that DraD is able to act as an acceptor in the donor-strand complementation mechanism of fiber formation but, in contrast to DraE adhesin, its native sequence does not have a donor strand; therefore, DraD can only be located at the tip of the fiber. | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: swapped c-terminal strands]] | [[Category: swapped c-terminal strands]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:32:07 2008'' | ||