1owj: Difference between revisions
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[[Image:1owj.jpg|left|200px]] | [[Image:1owj.jpg|left|200px]] | ||
'''Substituted 2-Naphthamidine Inhibitors of Urokinase''' | {{Structure | ||
|PDB= 1owj |SIZE=350|CAPTION= <scene name='initialview01'>1owj</scene>, resolution 3.10Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=155:6-[(Z)-AMINO(IMINO)METHYL]-N-(1-ISOPROPYL-3,4-DIHYDROISOQUINOLIN-7-YL)-2-NAPHTHAMIDE'>155</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/U-plasminogen_activator U-plasminogen activator], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.73 3.4.21.73] | |||
|GENE= PLAU ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |||
}} | |||
'''Substituted 2-Naphthamidine Inhibitors of Urokinase''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1OWJ is a [ | 1OWJ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OWJ OCA]. | ||
==Reference== | ==Reference== | ||
Identification of novel binding interactions in the development of potent, selective 2-naphthamidine inhibitors of urokinase. Synthesis, structural analysis, and SAR of N-phenyl amide 6-substitution., Wendt MD, Rockway TW, Geyer A, McClellan W, Weitzberg M, Zhao X, Mantei R, Nienaber VL, Stewart K, Klinghofer V, Giranda VL, J Med Chem. 2004 Jan 15;47(2):303-24. PMID:[http:// | Identification of novel binding interactions in the development of potent, selective 2-naphthamidine inhibitors of urokinase. Synthesis, structural analysis, and SAR of N-phenyl amide 6-substitution., Wendt MD, Rockway TW, Geyer A, McClellan W, Weitzberg M, Zhao X, Mantei R, Nienaber VL, Stewart K, Klinghofer V, Giranda VL, J Med Chem. 2004 Jan 15;47(2):303-24. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14711304 14711304] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: serine protease]] | [[Category: serine protease]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:16:33 2008'' | ||
Revision as of 14:16, 20 March 2008
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| , resolution 3.10Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | PLAU (Homo sapiens) | ||||||
| Activity: | U-plasminogen activator, with EC number 3.4.21.73 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Substituted 2-Naphthamidine Inhibitors of Urokinase
OverviewOverview
The preparation and assessment of biological activity of 6-substituted 2-naphthamidine inhibitors of the serine protease urokinase plasminogen activator (uPA, or urokinase) is described. 2-Naphthamidine was chosen as a starting point based on synthetic considerations and on modeling of substituent vectors. Phenyl amides at the 6-position were found to improve binding; replacement of the amide with other two-atom linkers proved ineffective. The phenyl group itself is situated near the S1' subsite; substitutions off of the phenyl group accessed S1' and other distant binding regions. Three new points of interaction were defined and explored through ring substitution. A solvent-exposed salt bridge with the Asp60A carboxylate was formed using a 4-alkylamino group, improving affinity to K(i) = 40 nM. Inhibitors also accessed two hydrophobic regions. One interaction is characterized by a tight hydrophobic fit made with a small dimple largely defined by His57 and His99; a weaker, less specific interaction involves alkyl groups reaching into the broad prime-side protein binding region near Val41 and the Cys42-Cys58 disulfide, displacing water molecules and leading to small gains in activity. Many inhibitors accessed two of these three regions. Affinities range as low as K(i) = 6 nM, and many compounds had K(i) < 100 nM, while moderate to excellent selectivity was gained versus four of five members of a panel of relevant serine proteases. Also, some selectivity against trypsin was generated via the interaction with Asp60A. X-ray structures of many of these compounds were used to inform our inhibitor design and to increase our understanding of key interactions. In combination with our exploration of 8-substitution patterns, we have identified a number of novel binding interactions for uPA inhibitors.
DiseaseDisease
Known disease associated with this structure: Alzheimer disease, late-onset, susceptibility to OMIM:[191840]
About this StructureAbout this Structure
1OWJ is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Identification of novel binding interactions in the development of potent, selective 2-naphthamidine inhibitors of urokinase. Synthesis, structural analysis, and SAR of N-phenyl amide 6-substitution., Wendt MD, Rockway TW, Geyer A, McClellan W, Weitzberg M, Zhao X, Mantei R, Nienaber VL, Stewart K, Klinghofer V, Giranda VL, J Med Chem. 2004 Jan 15;47(2):303-24. PMID:14711304
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