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3lhm
From Proteopedia
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| - | [[Image:3lhm.jpg|left|200px]] | + | [[Image:3lhm.jpg|left|200px]] |
| - | + | ||
| - | '''CRYSTAL STRUCTURES OF THE APO-AND HOLOMUTANT HUMAN LYSOZYMES WITH AN INTRODUCED CA2+ BINDING SITE''' | + | {{Structure |
| + | |PDB= 3lhm |SIZE=350|CAPTION= <scene name='initialview01'>3lhm</scene>, resolution 1.8Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CA:CALCIUM ION'>CA</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''CRYSTAL STRUCTURES OF THE APO-AND HOLOMUTANT HUMAN LYSOZYMES WITH AN INTRODUCED CA2+ BINDING SITE''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 3LHM is a [ | + | 3LHM is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3LHM OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structures of the apo- and holomutant human lysozymes with an introduced Ca2+ binding site., Inaka K, Kuroki R, Kikuchi M, Matsushima M, J Biol Chem. 1991 Nov 5;266(31):20666-71. PMID:[http:// | + | Crystal structures of the apo- and holomutant human lysozymes with an introduced Ca2+ binding site., Inaka K, Kuroki R, Kikuchi M, Matsushima M, J Biol Chem. 1991 Nov 5;266(31):20666-71. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1939116 1939116] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Lysozyme]] | [[Category: Lysozyme]] | ||
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[[Category: hydrolase (o-glycosyl)]] | [[Category: hydrolase (o-glycosyl)]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 19:05:40 2008'' |
Revision as of 17:05, 20 March 2008
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| , resolution 1.8Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Lysozyme, with EC number 3.2.1.17 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURES OF THE APO-AND HOLOMUTANT HUMAN LYSOZYMES WITH AN INTRODUCED CA2+ BINDING SITE
Contents |
Overview
The three-dimensional structures of apo- and holomutant human lysozymes (D86/92 lysozyme), in which a calcium binding site was designed and created for enhancing molecular stability by replacing both Gln86 and Ala92 with aspartic acids, were refined at 1.8-A resolution by x-ray crystallography. The overall structures and crystallographic thermal factors of all three proteins, the apo-, holo-D86/92, and the wild-type human lysozymes, were essentially identical; these results showed that the introduction of the calcium binding site did not affect either the overall structure or molecular rigidity of the proteins. However, structure analyses of the apo-D86/92 lysozyme revealed that the mutations affected the side chain conformation of residue 86 and hydrogen networks between the protein and the internal solvent molecules. In the structure of the holo-D86/92 lysozyme, seven oxygen ligands formed a slightly distorted pentagonal bipyramid around the calcium ion, indicating that the coordination around the calcium ion was quite similar to that in baboon alpha-lactalbumin. The pentagonal bipyramid coordination could be one of the most widely found and appropriate calcium binding schemes in proteins.
Disease
Known diseases associated with this structure: Amyloidosis, renal OMIM:[153450], Microphthalmia, syndromic 1 OMIM:[309800]
About this Structure
3LHM is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structures of the apo- and holomutant human lysozymes with an introduced Ca2+ binding site., Inaka K, Kuroki R, Kikuchi M, Matsushima M, J Biol Chem. 1991 Nov 5;266(31):20666-71. PMID:1939116
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