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5dzu

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== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/API11_SOLTU API11_SOLTU]] Inhibitor of cathepsin D (aspartic protease) and trypsin (serine protease). May protect the plant by inhibiting proteases of invading organisms.
[[http://www.uniprot.org/uniprot/API11_SOLTU API11_SOLTU]] Inhibitor of cathepsin D (aspartic protease) and trypsin (serine protease). May protect the plant by inhibiting proteases of invading organisms.
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== Publication Abstract from PubMed ==
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Potato cathepsin D inhibitor (PDI) is a glycoprotein of 188 amino acids which can inhibit both the aspartic protease cathepsin D and the serine protease trypsin. Here we report the first X-ray structure of PDI at a resolution of 2.1A showing that PDI adopts a beta-trefoil fold, which is typical of the Kunitz-family protease inhibitors, with the inhibitory loops protruding from the core. Possible reactive-site loops including one involving a unique disulphide and another involving a protruding 310 helix are identified and docking studies indicate the mode of action of this unusual bi-functional inhibitor.
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Structure of a Kunitz-type potato cathepsin D inhibitor.,Guo J, Erskine PT, Coker AR, Wood SP, Cooper JB J Struct Biol. 2015 Dec;192(3):554-60. doi: 10.1016/j.jsb.2015.10.020. Epub 2015 , Nov 2. PMID:26542926<ref>PMID:26542926</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 5dzu" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>

Revision as of 21:23, 30 November 2015

Structure of potato cathepsin D inhibitor

5dzu, resolution 2.12Å

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