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ADP-ribose pyrophosphatase
From Proteopedia
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| - | <StructureSection load='1khz' size=' | + | <StructureSection load='1khz' size='450' side='right' scene='48/488514/Cv/1' caption='ADP-ribose pyrophosphatase dimer complex with methylene ADP-ribose, Cl- (large green) and Mg+2 (small green) ions, [[1khz]]'> |
| - | + | __TOC__ | |
== Function == | == Function == | ||
| - | '''ADP-ribose pyrophosphatase''' (ADPRP) catalyzes the reaction which converts ADP-ribose to AMP and D-ribose 5-phosphate. ADPRP contains Mg+2 ion. ADPRP regulates the level of ADP-ribose (ADPR) in the cell. Excess of ADPR can inactivate proteins with nucleotide-binding site by binding to them.<ref>PMID:11323725</ref> | + | '''ADP-ribose pyrophosphatase''' (ADPRP) or '''ADPRase''' catalyzes the reaction which converts ADP-ribose to AMP and D-ribose 5-phosphate. ADPRP contains Mg+2 ion. ADPRP regulates the level of ADP-ribose (ADPR) in the cell. Excess of ADPR can inactivate proteins with nucleotide-binding site by binding to them.<ref>PMID:11323725</ref> ADPRP belongs to the family of NUDIX hydrolase. |
== Structural highlights == | == Structural highlights == | ||
| - | ADPRP contains two domains: the <scene name='48/488514/Cv/ | + | ADPRP contains two domains: the <scene name='48/488514/Cv/9'>N-terminal domain responsible for dimer stabilization</scene> and the C-terminal which contains the active site. The C-terminal domain contains the <scene name='48/488514/Cv/10'>Nudix (Nucleoside Diphosphate linked to X) sequence</scene> which is typical to pyrophosphatases and binds the metal ion. <scene name='48/488514/Cv/15'>Residues from both monomers of ADPRP participate in the active site</scene>.<ref>PMID:12135348</ref> Water molecules are shown as red spheres. |
| - | </ | + | *<scene name='48/488514/Cv/16'>Interactions of Mg+2 ion cluster</scene>. |
| + | *<scene name='48/488514/Cv/17'>1st Mg+2 ion coordination site</scene>. | ||
| + | *<scene name='48/488514/Cv/18'>2nd Mg+2 ion coordination site</scene>. | ||
| + | *<scene name='48/488514/Cv/19'>3rd Mg+2 ion coordination site</scene>. | ||
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==3D structures of ADP-ribose pyrophosphatase== | ==3D structures of ADP-ribose pyrophosphatase== | ||
| - | + | [[ADP-ribose pyrophosphatase 3D structures]] | |
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| - | + | </StructureSection> | |
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| - | **[[1khz]] - EcADPRP + AMPCPR + Mg – ''Escherichia coli''<br /> | ||
| - | **[[1qvj]] - hADPRP + ribose-5-phosphate + Mg<br /> | ||
| - | **[[1v8m]] - TtADPRP + Gd + ADPR <br /> | ||
| - | **[[1v8s]] - TtADPRP + AMP + Mg<br /> | ||
| - | **[[1v8t]] - TtADPRP + ribose-5-phosphate + Zn<br /> | ||
| - | **[[1v8u]] - TtADPRP (mutant) + sulfate + Mg<br /> | ||
| - | **[[1v8v]] - TtADPRP (mutant) + ADPR + Mg<br /> | ||
| - | **[[1v8w]] - TtADPRP (mutant) + sulfate + Zn<br /> | ||
| - | **[[1v8y]] - TtADPRP (mutant) + ADPR + Zn<br /> | ||
| - | **[[1v8r]] - TtADPRP + ADPR + Zn<br /> | ||
| - | **[[3bm4]] - hADPRP NUDT5 + AMPCPR + Mg<br /> | ||
| - | }} | ||
== References == | == References == | ||
<references/> | <references/> | ||
[[Category:Topic Page]] | [[Category:Topic Page]] | ||
Current revision
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References
- ↑ Gabelli SB, Bianchet MA, Bessman MJ, Amzel LM. The structure of ADP-ribose pyrophosphatase reveals the structural basis for the versatility of the Nudix family. Nat Struct Biol. 2001 May;8(5):467-72. PMID:11323725 doi:10.1038/87647
- ↑ Gabelli SB, Bianchet MA, Ohnishi Y, Ichikawa Y, Bessman MJ, Amzel LM. Mechanism of the Escherichia coli ADP-ribose pyrophosphatase, a Nudix hydrolase. Biochemistry. 2002 Jul 30;41(30):9279-85. PMID:12135348
