1dup

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[[Image:1dup.gif|left|200px]]
[[Image:1dup.gif|left|200px]]
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{{Structure
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The line below this paragraph, containing "STRUCTURE_1dup", creates the "Structure Box" on the page.
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/dUTP_diphosphatase dUTP diphosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.1.23 3.6.1.23] </span>
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{{STRUCTURE_1dup| PDB=1dup | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1dup FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dup OCA], [http://www.ebi.ac.uk/pdbsum/1dup PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1dup RCSB]</span>
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'''DEOXYURIDINE 5'-TRIPHOSPHATE NUCLEOTIDO HYDROLASE (D-UTPASE)'''
'''DEOXYURIDINE 5'-TRIPHOSPHATE NUCLEOTIDO HYDROLASE (D-UTPASE)'''
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: dUTP diphosphatase]]
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[[Category: DUTP diphosphatase]]
[[Category: Cedergren, E.]]
[[Category: Cedergren, E.]]
[[Category: Dauter, Z.]]
[[Category: Dauter, Z.]]
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[[Category: Nyman, P O.]]
[[Category: Nyman, P O.]]
[[Category: Wilson, K S.]]
[[Category: Wilson, K S.]]
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[[Category: hydrolase]]
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[[Category: Hydrolase]]
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[[Category: nucleotide metabolism]]
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[[Category: Nucleotide metabolism]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:49:09 2008''
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Revision as of 11:17, 2 May 2008

Image:1dup.gif

Template:STRUCTURE 1dup

DEOXYURIDINE 5'-TRIPHOSPHATE NUCLEOTIDO HYDROLASE (D-UTPASE)


Overview

The enzyme dUTPase catalyses the hydrolysis of dUTP and maintains a low intracellular concentration of dUTP so that uracil cannot be incorporated into DNA. dUTPase from Escherichia coli is strictly specific for its dUTP substrate, the active site discriminating between nucleotides with respect to the sugar moiety as well as the pyrimidine base. Here we report the three-dimensional structure of E. coli dUTPase determined by X-ray crystallography at a resolution of 1.9 A. The enzyme is a symmetrical trimer, and of the 152 amino acid residues in the subunit, the first 136 are visible in the crystal structure. The tertiary structure resembles a jelly-roll fold and does not show the 'classical' nucleotide-binding domain. In the quaternary structure there is a complex interaction between the subunits that may be important in catalysis. This possibility is supported by the location of conserved elements in the sequence.

About this Structure

1DUP is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Crystal structure of a dUTPase., Cedergren-Zeppezauer ES, Larsson G, Nyman PO, Dauter Z, Wilson KS, Nature. 1992 Feb 20;355(6362):740-3. PMID:1311056 Page seeded by OCA on Fri May 2 14:17:58 2008

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