4a57

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[[Image:4a57.png|left|200px]]
 
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{{STRUCTURE_4a57| PDB=4a57 | SCENE= }}
{{STRUCTURE_4a57| PDB=4a57 | SCENE= }}
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===CRYSTAL STRUCTURE OF TOXOPLASMA GONDII NUCLEOSIDE TRIPHOSPHATE DIPHOSPHOHYDROLASE 3 (NTPDASE3)===
===CRYSTAL STRUCTURE OF TOXOPLASMA GONDII NUCLEOSIDE TRIPHOSPHATE DIPHOSPHOHYDROLASE 3 (NTPDASE3)===
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{{ABSTRACT_PUBMED_22130673}}
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==Function==
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[[http://www.uniprot.org/uniprot/NTP1_TOXGO NTP1_TOXGO]] May perform an important processing step in the conversion of high energy nucleotides prior to uptake by the parasite and may contribute to intracellular survival and virulence. NTPAse-I has a specific activity 4.5-fold higher than NTPAse-II in hydrolysis of ATP. The primary difference between these isozymes lies in their ability to hydrolyze nucleoside triphosphate versus diphosphate substrates. While NTPAse-II hydrolyzes ATP to ADP and ADP to AMP at almost the same rate, NTPAse-I hydrolyzes ADP to AMP at a much slower rate (0.7% of the rate for ATP).
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{{ABSTRACT_PUBMED_22130673}}
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==About this Structure==
==About this Structure==
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[[4a57]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Toxoplasma_gondii Toxoplasma gondii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4A57 OCA].
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[[4a57]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Toxgo Toxgo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4A57 OCA].
==Reference==
==Reference==
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<ref group="xtra">PMID:022130673</ref><references group="xtra"/>
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<ref group="xtra">PMID:022130673</ref><references group="xtra"/><references/>
[[Category: Nucleoside-triphosphatase]]
[[Category: Nucleoside-triphosphatase]]
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[[Category: Toxoplasma gondii]]
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[[Category: Toxgo]]
[[Category: Krug, U.]]
[[Category: Krug, U.]]
[[Category: Straeter, N.]]
[[Category: Straeter, N.]]
[[Category: Zebisch, M.]]
[[Category: Zebisch, M.]]
[[Category: Hydrolase]]
[[Category: Hydrolase]]
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[[Category: Ntpdase]]

Revision as of 08:44, 25 December 2013

Template:STRUCTURE 4a57

Contents

CRYSTAL STRUCTURE OF TOXOPLASMA GONDII NUCLEOSIDE TRIPHOSPHATE DIPHOSPHOHYDROLASE 3 (NTPDASE3)

Template:ABSTRACT PUBMED 22130673

Function

[NTP1_TOXGO] May perform an important processing step in the conversion of high energy nucleotides prior to uptake by the parasite and may contribute to intracellular survival and virulence. NTPAse-I has a specific activity 4.5-fold higher than NTPAse-II in hydrolysis of ATP. The primary difference between these isozymes lies in their ability to hydrolyze nucleoside triphosphate versus diphosphate substrates. While NTPAse-II hydrolyzes ATP to ADP and ADP to AMP at almost the same rate, NTPAse-I hydrolyzes ADP to AMP at a much slower rate (0.7% of the rate for ATP).

About this Structure

4a57 is a 4 chain structure with sequence from Toxgo. Full crystallographic information is available from OCA.

Reference

  • Krug U, Zebisch M, Krauss M, Strater N. Structural insight into the activation mechanism of Toxoplasma gondii nucleoside triphosphate diphosphohydrolases by disulfide reduction. J Biol Chem. 2011 Nov 30. PMID:22130673 doi:10.1074/jbc.M111.294348

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