2eti

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{{STRUCTURE_2eti| PDB=2eti | SCENE= }}
{{STRUCTURE_2eti| PDB=2eti | SCENE= }}
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'''USE OF RESTRAINED MOLECULAR DYNAMICS IN WATER TO DETERMINE THREE-DIMENSIONAL PROTEIN STRUCTURE: PREDICTION OF THE THREE-DIMENSIONAL STRUCTURE OF ECBALLIUM ELATERIUM TRYPSIN INHIBITOR II'''
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===USE OF RESTRAINED MOLECULAR DYNAMICS IN WATER TO DETERMINE THREE-DIMENSIONAL PROTEIN STRUCTURE: PREDICTION OF THE THREE-DIMENSIONAL STRUCTURE OF ECBALLIUM ELATERIUM TRYPSIN INHIBITOR II===
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==Overview==
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Refinement of distance geometry (DG) structures of EETI-II (Heitz et al.: Biochemistry 28:2392-2398, 1989), a member of the squash family trypsin inhibitor, have been carried out by restrained molecular dynamics (RMD) in water. The resulting models show better side chain apolar/polar surface ratio and estimated solvation free energy than structures refined "in vacuo." The consistent lower values of residual NMR constraint violations, apolar/polar surface ratio, and solvation free energy for one of these refined structures allowed prediction of the 3D folding and disulfide connectivity of EETI-II. Except for the few first residues for which no NMR constraints were available, this computer model fully agreed with X-ray structures of CMTI-I (Bode et al.: FEBS Lett. 242:285-292, 1989) and EETI-II complexed with trypsin that appeared after the RMD simulation was completed. Restrained molecular dynamics in water is thus proved to be highly valuable for refinement of DG structures. Also, the successful use of apolar/polar surface ratio and of solvation free energy reinforce the analysis of Novotny et al. (Proteins 4:19-30, 1988) and shows that these criteria are useful indicators of correct versus misfolded models.
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{{ABSTRACT_PUBMED_2622910}}
==About this Structure==
==About this Structure==
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2ETI is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Ecballium_elaterium Ecballium elaterium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ETI OCA].
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2ETI is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Ecballium_elaterium Ecballium elaterium]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ETI OCA].
==Reference==
==Reference==
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[[Category: Le-Nguyen, D.]]
[[Category: Le-Nguyen, D.]]
[[Category: Protein inhibitor]]
[[Category: Protein inhibitor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 15:13:58 2008''

Revision as of 12:13, 27 July 2008

Image:2eti.png

Template:STRUCTURE 2eti

USE OF RESTRAINED MOLECULAR DYNAMICS IN WATER TO DETERMINE THREE-DIMENSIONAL PROTEIN STRUCTURE: PREDICTION OF THE THREE-DIMENSIONAL STRUCTURE OF ECBALLIUM ELATERIUM TRYPSIN INHIBITOR II

Template:ABSTRACT PUBMED 2622910

About this Structure

2ETI is a Single protein structure of sequence from Ecballium elaterium. Full experimental information is available from OCA.

Reference

Use of restrained molecular dynamics in water to determine three-dimensional protein structure: prediction of the three-dimensional structure of Ecballium elaterium trypsin inhibitor II., Chiche L, Gaboriaud C, Heitz A, Mornon JP, Castro B, Kollman PA, Proteins. 1989;6(4):405-17. PMID:2622910

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