1fmg: Difference between revisions

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[[Image:1fmg.gif|left|200px]]
{{Seed}}
[[Image:1fmg.png|left|200px]]


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{{STRUCTURE_1fmg|  PDB=1fmg  |  SCENE=  }}  
{{STRUCTURE_1fmg|  PDB=1fmg  |  SCENE=  }}  


'''CRYSTAL STRUCTURE OF PORCINE BETA TRYPSIN WITH 0.04% POLYDOCANOL'''
===CRYSTAL STRUCTURE OF PORCINE BETA TRYPSIN WITH 0.04% POLYDOCANOL===




==Overview==
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Polydocanol has a wide range of medical applications, especially in sclerotherapy of many diseases such as gastrointestinal antiplastia, oesophageal haemangioma etc. It is of interest to study the mode of binding of this medically important detergent and its subsequent action on proteins. Here, three crystal structures of serine protease trypsin are reported in the presence of varying concentrations of polydocanol in order to elucidate its mode of binding and interactions with proteins. Polydocanol binds to the protein with its hydrophilic head rather than the hydrophobic tail as is the case with other detergents such as SDS and MEGA-8. This hydrophilic binding mode results in the binding sites of polydocanol being distributed on the surface of the enzyme. There are at least 11 binding sites for polydocanol in trypsin. Polydocanol forms part of the large-scale water networks which connect distant regions of the enzyme, thereby stabilizing it. The hydrophilic binding of polydocanol also results in cross-linked pairs of trypsin molecules.
The line below this paragraph, {{ABSTRACT_PUBMED_11679713}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 11679713 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11679713}}


==About this Structure==
==About this Structure==
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[[Category: Hydrolase]]
[[Category: Hydrolase]]
[[Category: Serine protease]]
[[Category: Serine protease]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 03:29:08 2008''

Revision as of 00:29, 1 July 2008

File:1fmg.png

Template:STRUCTURE 1fmg

CRYSTAL STRUCTURE OF PORCINE BETA TRYPSIN WITH 0.04% POLYDOCANOL

Template:ABSTRACT PUBMED 11679713

About this Structure

1FMG is a Single protein structure of sequence from Sus scrofa. Full crystallographic information is available from OCA.

Reference

Structures of porcine beta-trypsin-detergent complexes: the stabilization of proteins through hydrophilic binding of polydocanol., Deepthi S, Johnson A, Pattabhi V, Acta Crystallogr D Biol Crystallogr. 2001 Nov;57(Pt 11):1506-12. Epub 2001, Oct 25. PMID:11679713

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