1a46

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[[Image:1a46.gif|left|200px]]
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{{Seed}}
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[[Image:1a46.png|left|200px]]
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{{STRUCTURE_1a46| PDB=1a46 | SCENE= }}
{{STRUCTURE_1a46| PDB=1a46 | SCENE= }}
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'''THROMBIN COMPLEXED WITH HIRUGEN AND A BETA-STRAND MIMETIC INHIBITOR'''
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===THROMBIN COMPLEXED WITH HIRUGEN AND A BETA-STRAND MIMETIC INHIBITOR===
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==Overview==
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The X-ray crystal structures of four beta-strand-templated active site inhibitors of thrombin containing P1' groups have been determined and refined at about 2.1-A resolution to crystallographic R-values between 0.148 and 0.164. Two of the inhibitors have an alpha-ketoamide functionality at the scissile bond; the other two have a nonhydrolyzable electrophilic group at the P1' position. The binding of lysine is compared with that of arginine at the S1 specificity site, while that of D,L-phenylalanine enantiomorphs is compared in the S3 region of thrombin. Four different P1' moieties bind at the S1' subsite in three different ways. The binding constants vary between 2.0 microM and 70 pM. The bound structures are used to intercorrelate the various binding constants and also lead to insightful inferences concerning binding at the S1' site of thrombin.
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The line below this paragraph, {{ABSTRACT_PUBMED_10212123}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 10212123 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10212123}}
==About this Structure==
==About this Structure==
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[[Category: Tulinsky, A.]]
[[Category: Tulinsky, A.]]
[[Category: Zhang, E.]]
[[Category: Zhang, E.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 09:47:16 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 16:01:49 2008''

Revision as of 13:02, 30 June 2008

Image:1a46.png

Template:STRUCTURE 1a46

THROMBIN COMPLEXED WITH HIRUGEN AND A BETA-STRAND MIMETIC INHIBITOR

Template:ABSTRACT PUBMED 10212123

About this Structure

1A46 is a Protein complex structure of sequences from Hirudo medicinalis and Homo sapiens. Full crystallographic information is available from OCA.

Reference

Bound structures of novel P3-P1' beta-strand mimetic inhibitors of thrombin., St Charles R, Matthews JH, Zhang E, Tulinsky A, J Med Chem. 1999 Apr 22;42(8):1376-83. PMID:10212123

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