1s3t
From Proteopedia
(New page: 200px<br /><applet load="1s3t" size="450" color="white" frame="true" align="right" spinBox="true" caption="1s3t, resolution 2.10Å" /> '''BORATE INHIBITED BAC...) |
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| - | [[Image:1s3t.gif|left|200px]]<br /><applet load="1s3t" size=" | + | [[Image:1s3t.gif|left|200px]]<br /><applet load="1s3t" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1s3t, resolution 2.10Å" /> | caption="1s3t, resolution 2.10Å" /> | ||
'''BORATE INHIBITED BACILLUS PASTEURII UREASE CRYSTAL STRUCTURE'''<br /> | '''BORATE INHIBITED BACILLUS PASTEURII UREASE CRYSTAL STRUCTURE'''<br /> | ||
==Overview== | ==Overview== | ||
| - | The structure of the complex of urease, a Ni-containing metalloenzyme, with boric acid was determined at 2.10 | + | The structure of the complex of urease, a Ni-containing metalloenzyme, with boric acid was determined at 2.10 A resolution. The complex shows the unprecedented binding mode of the competitive inhibitor to the dinuclear metal center, with the B(OH)3 molecule bridging the Ni ions and leaving in place the bridging hydroxide. Boric acid can be considered a substrate analogue of urea, and the structure supports the proposal that the Ni-bridging hydroxide acts as the nucleophile in the enzymatic process of urea hydrolysis. |
==About this Structure== | ==About this Structure== | ||
| - | 1S3T is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Sporosarcina_pasteurii Sporosarcina pasteurii] with NI, SO4 and BO3 as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Urease Urease], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.1.5 3.5.1.5] Full crystallographic information is available from [http:// | + | 1S3T is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Sporosarcina_pasteurii Sporosarcina pasteurii] with <scene name='pdbligand=NI:'>NI</scene>, <scene name='pdbligand=SO4:'>SO4</scene> and <scene name='pdbligand=BO3:'>BO3</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Urease Urease], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.1.5 3.5.1.5] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S3T OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Ciurli, S.]] | [[Category: Ciurli, S.]] | ||
[[Category: Mangani, S.]] | [[Category: Mangani, S.]] | ||
| - | [[Category: Rypniewski, W | + | [[Category: Rypniewski, W R.]] |
| - | [[Category: Wilson, K | + | [[Category: Wilson, K S.]] |
[[Category: BO3]] | [[Category: BO3]] | ||
[[Category: NI]] | [[Category: NI]] | ||
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[[Category: urease]] | [[Category: urease]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:57:36 2008'' |
Revision as of 12:57, 21 February 2008
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BORATE INHIBITED BACILLUS PASTEURII UREASE CRYSTAL STRUCTURE
Overview
The structure of the complex of urease, a Ni-containing metalloenzyme, with boric acid was determined at 2.10 A resolution. The complex shows the unprecedented binding mode of the competitive inhibitor to the dinuclear metal center, with the B(OH)3 molecule bridging the Ni ions and leaving in place the bridging hydroxide. Boric acid can be considered a substrate analogue of urea, and the structure supports the proposal that the Ni-bridging hydroxide acts as the nucleophile in the enzymatic process of urea hydrolysis.
About this Structure
1S3T is a Protein complex structure of sequences from Sporosarcina pasteurii with , and as ligands. Active as Urease, with EC number 3.5.1.5 Full crystallographic information is available from OCA.
Reference
Molecular details of urease inhibition by boric acid: insights into the catalytic mechanism., Benini S, Rypniewski WR, Wilson KS, Mangani S, Ciurli S, J Am Chem Soc. 2004 Mar 31;126(12):3714-5. PMID:15038715
Page seeded by OCA on Thu Feb 21 14:57:36 2008
Categories: Protein complex | Sporosarcina pasteurii | Urease | Benini, S. | Ciurli, S. | Mangani, S. | Rypniewski, W R. | Wilson, K S. | BO3 | NI | SO4 | Bacillus pasteurii | Borate | Metalloenzyme | Nickel
