1qaz
From Proteopedia
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| - | [[Image:1qaz.gif|left|200px]] | + | [[Image:1qaz.gif|left|200px]] |
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| - | '''CRYSTAL STRUCTURE OF ALGINATE LYASE A1-III FROM SPHINGOMONAS SPECIES A1 AT 1.78A RESOLUTION''' | + | {{Structure |
| + | |PDB= 1qaz |SIZE=350|CAPTION= <scene name='initialview01'>1qaz</scene>, resolution 1.78Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=SO4:SULFATE ION'>SO4</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Urea_carboxylase Urea carboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.4.6 6.3.4.6] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''CRYSTAL STRUCTURE OF ALGINATE LYASE A1-III FROM SPHINGOMONAS SPECIES A1 AT 1.78A RESOLUTION''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1QAZ is a [ | + | 1QAZ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sphingomonas_sp. Sphingomonas sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QAZ OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structure of alginate lyase A1-III from Sphingomonas species A1 at 1.78 A resolution., Yoon HJ, Mikami B, Hashimoto W, Murata K, J Mol Biol. 1999 Jul 9;290(2):505-14. PMID:[http:// | + | Crystal structure of alginate lyase A1-III from Sphingomonas species A1 at 1.78 A resolution., Yoon HJ, Mikami B, Hashimoto W, Murata K, J Mol Biol. 1999 Jul 9;290(2):505-14. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10390348 10390348] |
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Sphingomonas sp.]] | [[Category: Sphingomonas sp.]] | ||
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[[Category: SO4]] | [[Category: SO4]] | ||
[[Category: alginate lyase]] | [[Category: alginate lyase]] | ||
| - | [[Category: | + | [[Category: crystal]] |
[[Category: x-ray structure]] | [[Category: x-ray structure]] | ||
| - | ''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 13:35:15 2008'' |
Revision as of 11:35, 20 March 2008
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| , resolution 1.78Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Urea carboxylase, with EC number 6.3.4.6 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF ALGINATE LYASE A1-III FROM SPHINGOMONAS SPECIES A1 AT 1.78A RESOLUTION
Overview
The three-dimensional structure of alginate lyase A1-III (ALYIII) from a Sphingomonas species A1 was determined by X-ray crystallography. The enzyme was crystallized by the hanging-drop vapour-diffusion method in the presence of 49% ammonium sulfate at 20 degrees C. The crystals are monoclinic and belong to the space group C2 with unit cell dimensions of a=49.18 A, b=93.08 A, c=82.10 A and beta=104.12 degrees. There was one molecule of alginate lyase in the asymmetric unit of the crystal. The diffraction data up to 1. 71 A were collected with Rsymof 5.0%. The crystal structure of ALYIII was solved by the multiple isomorphous replacement method and refined at 1.78 A resolution using X-PLOR with a final R -factor of 18.0% for 10.0 to 1.78 A resolution data. The refined model of ALYIII contained 351 amino acid residues, 299 water molecules and two sulfate ions. The three-dimensional structure of ALYIII was abundant in helices and had a deep tunnel-like cleft in a novel (alpha6/alpha5)-barrel structure, which was similar to the (alpha6/alpha6)-barrel found in glucoamylase and cellulase. This structure presented the possibility that alginate molecules might penetrate into the cleft to interact with the catalytic site of ALYIII.
About this Structure
1QAZ is a Single protein structure of sequence from Sphingomonas sp.. Full crystallographic information is available from OCA.
Reference
Crystal structure of alginate lyase A1-III from Sphingomonas species A1 at 1.78 A resolution., Yoon HJ, Mikami B, Hashimoto W, Murata K, J Mol Biol. 1999 Jul 9;290(2):505-14. PMID:10390348
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