1lpi

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{{STRUCTURE_1lpi| PDB=1lpi | SCENE= }}
{{STRUCTURE_1lpi| PDB=1lpi | SCENE= }}
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'''HEW LYSOZYME: TRP...NA CATION-PI INTERACTION'''
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===HEW LYSOZYME: TRP...NA CATION-PI INTERACTION===
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==Overview==
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Experimental evidence of a cation-pi interaction between a sodium cation (Na+) and the indole ring of residue Trp123 in a structure (2.0 A) of hen egg-white lysozyme is presented. The geometry of the metal ion-pi interaction observed in the protein structure (distance between the aromatic plane and the cation approximately 4 A) is consistent with geometries observed among small molecules crystal structures and quantum chemistry ab initio calculations. The present crystal structure of lysozyme provides unique structural information about the geometry of binding of cations to pi systems in proteins. It shows that the metal ion-pi interaction within proteins is not significantly different from similar bindings found in small molecules and that it can be modeled by theoretical methods.
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(as it appears on PubMed at http://www.pubmed.gov), where 9828016 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9828016}}
==About this Structure==
==About this Structure==
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[[Category: Hydrolase]]
[[Category: Hydrolase]]
[[Category: O-glycosyl]]
[[Category: O-glycosyl]]
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Revision as of 18:43, 2 July 2008

Image:1lpi.png

Template:STRUCTURE 1lpi

HEW LYSOZYME: TRP...NA CATION-PI INTERACTION

Template:ABSTRACT PUBMED 9828016

About this Structure

1LPI is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.

Reference

Cation-pi (Na+-Trp) interactions in the crystal structure of tetragonal lysozyme., Wouters J, Protein Sci. 1998 Nov;7(11):2472-5. PMID:9828016

Page seeded by OCA on Wed Jul 2 21:43:52 2008

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