1wss: Difference between revisions

Revision as of 14:05, 3 May 2008

Human Factor Viia-Tissue Factor in Complex with peprid mimetic inhibitor that has two charge groups in P2 and P4

OverviewOverview

The crystal structure of human factor VIIa/soluble tissue factor (FVIIa/sTF) in complex with a highly selective peptide-mimetic FVIIa inhibitor which shows 1670-fold selectivity against thrombin inhibition has been solved at 2.6 A resolution. The inhibitor is bound to FVIIa/sTF at the S1, S2 and S3 sites and at the additional S1 subsite. Two charged groups, the amidino group in P2 and the carboxylate group in P4, form ionic interactions with Asp60 and Lys192 of FVIIa, respectively. Structural comparisons between factor VIIa and thrombin show that thrombin has oppositely charged residues, Lys60F and Glu192, in the S2 site and the S1 subsites, respectively. These data suggest that the utilization of the differences of charge distribution in the S2 site and the S1 subsites between FVIIa and thrombin is critical for achieving high selectivity against thrombin inhibition. These results will provide valuable information for the structure-based drug design of specific inhibitors for FVIIa/TF.

About this StructureAbout this Structure

1WSS is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

Structure of human factor VIIa/tissue factor in complex with a peptide-mimetic inhibitor: high selectivity against thrombin by introducing two charged groups in P2 and P4., Kadono S, Sakamoto A, Kikuchi Y, Oh-Eda M, Yabuta N, Koga T, Hattori K, Shiraishi T, Haramura M, Kodama H, Ono Y, Esaki T, Sato H, Watanabe Y, Itoh S, Ohta M, Kozono T, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 Feb 1;61(Pt, 2):169-73. Epub 2005 Jan 20. PMID:16510984 Page seeded by OCA on Sat May 3 14:05:27 2008

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OCA

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 [[Image:1wss.gif|left|200px]]
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-|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Coagulation_factor_VIIa Coagulation factor VIIa], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.21 3.4.21.21] </span>
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-}}
 '''Human Factor Viia-Tissue Factor in Complex with peprid mimetic inhibitor that has two charge groups in P2 and P4'''
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 [[Category: Watanabe, Y.]]
 [[Category: Yabuta, N.]]
-[[Category: serine protease]]
+[[Category: Serine protease]]
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 14:05:27 2008''
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:40:29 2008''