1dtx: Difference between revisions

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[[Image:1dtx.gif|left|200px]]
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{{STRUCTURE_1dtx|  PDB=1dtx  |  SCENE=  }}  
{{STRUCTURE_1dtx|  PDB=1dtx  |  SCENE=  }}  


'''CRYSTAL STRUCTURE OF ALPHA-DENDROTOXIN FROM THE GREEN MAMBA VENOM AND ITS COMPARISON WITH THE STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR'''
===CRYSTAL STRUCTURE OF ALPHA-DENDROTOXIN FROM THE GREEN MAMBA VENOM AND ITS COMPARISON WITH THE STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR===




==Overview==
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The three-dimensional structure of alpha-dendrotoxin (alpha-DTX) from the green mamba (Dendroaspis angusticeps) venom has been determined crystallographically using the method of isomorphous replacement and refined at 2.2 A resolution using a restrained least-squares method. The crystallographic R-factor is 0.169 for all 3451 measured reflections between 7.0 and 2.2 A. Although the main-chain fold of alpha-DTX is similar to that of homologous bovine pancreatic trypsin inhibitor (BPTI), there are significant differences involving segments of the polypeptide chain close to the "antiprotease site" of BPTI. Comparison of the structure of alpha-DTX with the existing models of BPTI and its complexes with trypsin and kallikrein reveals structural differences that explain the inability of alpha-DTX to inhibit trypsin and chymotrypsin.
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{{ABSTRACT_PUBMED_1373774}}


==About this Structure==
==About this Structure==
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[[Category: Skarzynski, T.]]
[[Category: Skarzynski, T.]]
[[Category: Presynaptic neurotoxin]]
[[Category: Presynaptic neurotoxin]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 14:16:15 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 23:36:43 2008''

Revision as of 20:36, 30 June 2008

File:1dtx.png

Template:STRUCTURE 1dtx

CRYSTAL STRUCTURE OF ALPHA-DENDROTOXIN FROM THE GREEN MAMBA VENOM AND ITS COMPARISON WITH THE STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR

Template:ABSTRACT PUBMED 1373774

About this Structure

1DTX is a Single protein structure of sequence from Dendroaspis angusticeps. Full crystallographic information is available from OCA.

Reference

Crystal structure of alpha-dendrotoxin from the green mamba venom and its comparison with the structure of bovine pancreatic trypsin inhibitor., Skarzynski T, J Mol Biol. 1992 Apr 5;224(3):671-83. PMID:1373774

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