4yva
From Proteopedia
(Difference between revisions)
| Line 7: | Line 7: | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4yv8|4yv8]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4yv8|4yv8]]</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cathepsin_K Cathepsin K], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.38 3.4.22.38] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cathepsin_K Cathepsin K], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.38 3.4.22.38] </span></td></tr> | ||
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4yva FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yva OCA], [http://pdbe.org/4yva PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4yva RCSB], [http://www.ebi.ac.uk/pdbsum/4yva PDBsum]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4yva FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yva OCA], [http://pdbe.org/4yva PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4yva RCSB], [http://www.ebi.ac.uk/pdbsum/4yva PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4yva ProSAT]</span></td></tr> |
</table> | </table> | ||
== Disease == | == Disease == | ||
| Line 13: | Line 13: | ||
== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/CATK_HUMAN CATK_HUMAN]] Closely involved in osteoclastic bone resorption and may participate partially in the disorder of bone remodeling. Displays potent endoprotease activity against fibrinogen at acid pH. May play an important role in extracellular matrix degradation. | [[http://www.uniprot.org/uniprot/CATK_HUMAN CATK_HUMAN]] Closely involved in osteoclastic bone resorption and may participate partially in the disorder of bone remodeling. Displays potent endoprotease activity against fibrinogen at acid pH. May play an important role in extracellular matrix degradation. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Natural products are an important source of novel drug scaffolds. The highly variable and unpredictable timelines associated with isolating novel compounds and elucidating their structures have led to the demise of exploring natural product extract libraries in drug discovery programs. Here we introduce affinity crystallography as a new methodology that significantly shortens the time of the hit to active structure cycle in bioactive natural product discovery research. This affinity crystallography approach is illustrated by using semipure fractions of an actinomycetes culture extract to isolate and identify a cathepsin K inhibitor and to compare the outcome with the traditional assay-guided purification/structural analysis approach. The traditional approach resulted in the identification of the known inhibitor antipain (1) and its new but lower potency dehydration product 2, while the affinity crystallography approach led to the identification of a new high-affinity inhibitor named lichostatinal (3). The structure and potency of lichostatinal (3) was verified by total synthesis and kinetic characterization. To the best of our knowledge, this is the first example of isolating and characterizing a potent enzyme inhibitor from a partially purified crude natural product extract using a protein crystallographic approach. | ||
| + | |||
| + | Affinity Crystallography: A New Approach to Extracting High-Affinity Enzyme Inhibitors from Natural Extracts.,Aguda AH, Lavallee V, Cheng P, Bott TM, Meimetis LG, Law S, Nguyen NT, Williams DE, Kaleta J, Villanueva I, Davies J, Andersen RJ, Brayer GD, Bromme D J Nat Prod. 2016 Aug 26;79(8):1962-70. doi: 10.1021/acs.jnatprod.6b00215. Epub, 2016 Aug 6. PMID:27498895<ref>PMID:27498895</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 4yva" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 05:03, 9 September 2016
Cathepsin K co-crystallized with actinomycetes extract
| |||||||||||
