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1lys

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{{STRUCTURE_1lys| PDB=1lys | SCENE= }}
{{STRUCTURE_1lys| PDB=1lys | SCENE= }}
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'''X-RAY STRUCTURE OF A MONOCLINIC FORM OF HEN EGG-WHITE LYSOZYME CRYSTALLIZED AT 313K. COMPARISON OF TWO INDEPENDENT MOLECULES'''
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===X-RAY STRUCTURE OF A MONOCLINIC FORM OF HEN EGG-WHITE LYSOZYME CRYSTALLIZED AT 313K. COMPARISON OF TWO INDEPENDENT MOLECULES===
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==Overview==
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A monoclinic crystal of hen egg lysozyme (HEL, E.C. 3.2.1.17) was obtained at 313 K from a 10%(w/v) NaCl solution at pH 7.6 containing 5%(v/v) 1-propanol. Cell dimensions were a = 27.23, b = 63.66, c = 59.12 A and beta = 92.9 degrees, and the space group was P2(1). The unit cell contains four molecules (V(m) = 1.79 A(3) Da(-1)). The structure was solved by the isomorphous replacement method with anomalous scattering followed by phase improvement by the solvent-flattening method. The refinement of the structure was carried out by the simulated-annealing method. The conventional R value was 0.187 for 18 260 reflections [|F(o)| &gt; 3sigma(F)] in the resolution range 10-1.72 A. The r.m.s. deviations from the ideal bond distances and angles were 0.015 A and 3.0 degrees, respectively. The two molecules in the asymmetric unit are related by a translation of half a lattice unit along the a and c axes. The r.m.s. difference of equivalent C(alpha) atoms between the two molecules was 0.64 A and the largest difference was 3.57 A for Gly71. A significant structural change was observed in the regions of residues 45-50, 65-73 and 100-104. The residues 45-50, which connect two beta-strands, are shifted parallel to the beta-sheet plane between the two molecules. The residues 100-104 belong to the substrate-binding site (subsite A) and the high flexibility of this region may be responsible for the binding of the substrate and the release of reaction products.
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(as it appears on PubMed at http://www.pubmed.gov), where 15299435 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15299435}}
==About this Structure==
==About this Structure==
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[[Category: Single protein]]
[[Category: Single protein]]
[[Category: Harata, K.]]
[[Category: Harata, K.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:25:57 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 22:50:33 2008''

Revision as of 19:50, 2 July 2008

Template:STRUCTURE 1lys

X-RAY STRUCTURE OF A MONOCLINIC FORM OF HEN EGG-WHITE LYSOZYME CRYSTALLIZED AT 313K. COMPARISON OF TWO INDEPENDENT MOLECULES

Template:ABSTRACT PUBMED 15299435

About this Structure

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

Reference

X-ray structure of a monoclinic form of hen egg-white lysozyme crystallized at 313 K. Comparison of two independent molecules., Harata K, Acta Crystallogr D Biol Crystallogr. 1994 May 1;50(Pt 3):250-7. PMID:15299435

Page seeded by OCA on Wed Jul 2 22:50:33 2008

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