1bth
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:1bth.jpg|left|200px]] | + | [[Image:1bth.jpg|left|200px]] |
| - | + | ||
| - | '''STRUCTURE OF THROMBIN COMPLEXED WITH BOVINE PANCREATIC TRYPSIN INHIBITOR''' | + | {{Structure |
| + | |PDB= 1bth |SIZE=350|CAPTION= <scene name='initialview01'>1bth</scene>, resolution 2.3Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Thrombin Thrombin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.5 3.4.21.5] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''STRUCTURE OF THROMBIN COMPLEXED WITH BOVINE PANCREATIC TRYPSIN INHIBITOR''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 10: | Line 19: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1BTH is a [ | + | 1BTH is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BTH OCA]. |
==Reference== | ==Reference== | ||
| - | The thrombin E192Q-BPTI complex reveals gross structural rearrangements: implications for the interaction with antithrombin and thrombomodulin., van de Locht A, Bode W, Huber R, Le Bonniec BF, Stone SR, Esmon CT, Stubbs MT, EMBO J. 1997 Jun 2;16(11):2977-84. PMID:[http:// | + | The thrombin E192Q-BPTI complex reveals gross structural rearrangements: implications for the interaction with antithrombin and thrombomodulin., van de Locht A, Bode W, Huber R, Le Bonniec BF, Stone SR, Esmon CT, Stubbs MT, EMBO J. 1997 Jun 2;16(11):2977-84. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9214615 9214615] |
[[Category: Bos taurus]] | [[Category: Bos taurus]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
| Line 24: | Line 33: | ||
[[Category: thrombin inhibitor]] | [[Category: thrombin inhibitor]] | ||
| - | ''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 10:15:32 2008'' |
Revision as of 08:15, 20 March 2008
| |||||||
| , resolution 2.3Å | |||||||
|---|---|---|---|---|---|---|---|
| Activity: | Thrombin, with EC number 3.4.21.5 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF THROMBIN COMPLEXED WITH BOVINE PANCREATIC TRYPSIN INHIBITOR
Contents |
Overview
Previous crystal structures of thrombin indicate that the 60-insertion loop is a rigid moiety that partially occludes the active site, suggesting that this structural feature plays a decisive role in restricting thrombin's specificity. This restricted specificity is typified by the experimental observation that thrombin is not inhibited by micromolar concentrations of basic pancreatic trypsin inhibitor (BPTI). Surprisingly, a single atom mutation in thrombin (E192Q) results in a 10(-8) M affinity for BPTI. The crystal structure of human thrombin mutant E192Q has been solved in complex with BPTI at 2.3 A resolution. Binding of the Kunitz inhibitor is accompanied by gross structural rearrangements in thrombin. In particular, thrombin's 60-loop is found in a significantly different conformation. Concomitant reorganization of other surface loops that surround the active site, i.e. the 37-loop, the 148-loop and the 99-loop, is observed. Thrombin can therefore undergo major structural reorganization upon strong ligand binding. Implications for the interaction of thrombin with antithrombin and thrombomodulin are discussed.
Disease
Known diseases associated with this structure: Dysprothrombinemia OMIM:[176930], Hyperprothrombinemia OMIM:[176930], Hypoprothrombinemia OMIM:[176930]
About this Structure
1BTH is a Protein complex structure of sequences from Bos taurus. Full crystallographic information is available from OCA.
Reference
The thrombin E192Q-BPTI complex reveals gross structural rearrangements: implications for the interaction with antithrombin and thrombomodulin., van de Locht A, Bode W, Huber R, Le Bonniec BF, Stone SR, Esmon CT, Stubbs MT, EMBO J. 1997 Jun 2;16(11):2977-84. PMID:9214615
Page seeded by OCA on Thu Mar 20 10:15:32 2008
