1oih
From Proteopedia
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| - | [[Image:1oih.jpg|left|200px]]<br /><applet load="1oih" size=" | + | [[Image:1oih.jpg|left|200px]]<br /><applet load="1oih" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1oih, resolution 1.89Å" /> | caption="1oih, resolution 1.89Å" /> | ||
'''CRYSTAL STRUCTURE OF THE ALKYLSULFATASE ATSK, A NON-HEME FE(II) ALPHAKETOGLUTARATE DEPENDENT DIOXYGENASE'''<br /> | '''CRYSTAL STRUCTURE OF THE ALKYLSULFATASE ATSK, A NON-HEME FE(II) ALPHAKETOGLUTARATE DEPENDENT DIOXYGENASE'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1OIH is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pseudomonas_putida Pseudomonas putida] with NA as [http://en.wikipedia.org/wiki/ligand ligand]. Known structural/functional Site: <scene name='pdbsite=AC1:Na Binding Site For Chain D'>AC1</scene>. Full crystallographic information is available from [http:// | + | 1OIH is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pseudomonas_putida Pseudomonas putida] with <scene name='pdbligand=NA:'>NA</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Known structural/functional Site: <scene name='pdbsite=AC1:Na+Binding+Site+For+Chain+D'>AC1</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OIH OCA]. |
==Reference== | ==Reference== | ||
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[[Category: oxidoreductase]] | [[Category: oxidoreductase]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Feb 3 09:58:30 2008'' |
Revision as of 07:58, 3 February 2008
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CRYSTAL STRUCTURE OF THE ALKYLSULFATASE ATSK, A NON-HEME FE(II) ALPHAKETOGLUTARATE DEPENDENT DIOXYGENASE
Overview
The alkylsulfatase AtsK from Pseudomonas putida S-313 belongs to the, widespread and versatile non-heme iron(II) alpha-ketoglutarate-dependent, dioxygenase superfamily and catalyzes the oxygenolytic cleavage of a, variety of different alkyl sulfate esters to the corresponding aldehyde, and sulfate. The enzyme is only expressed under sulfur starvation, conditions, providing a selective advantage for bacterial growth in soils, and rhizosphere. Here we describe the crystal structure of AtsK in the apo, form and in three complexes: with the cosubstrate alpha-ketoglutarate, with alpha-ketoglutarate and iron, and finally with alpha-ketoglutarate, iron, and an alkyl sulfate ester used as substrate in catalytic studies., The overall fold of the enzyme is closely related to that of the, taurine/alpha-ketoglutarate dioxygenase TauD and is similar to the fold, observed for other members of the enzyme superfamily. From comparison of, these structures with the crystal structure of AtsK and its complexes, we, propose a general mechanism for the catalytic cycle of the, alpha-ketoglutarate-dependent dioxygenase superfamily.
About this Structure
1OIH is a Single protein structure of sequence from Pseudomonas putida with as ligand. Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
Crystal structure of the alkylsulfatase AtsK: insights into the catalytic mechanism of the Fe(II) alpha-ketoglutarate-dependent dioxygenase superfamily., Muller I, Kahnert A, Pape T, Sheldrick GM, Meyer-Klaucke W, Dierks T, Kertesz M, Uson I, Biochemistry. 2004 Mar 23;43(11):3075-88. PMID:15023059
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