ADP-ribose pyrophosphatase
From Proteopedia
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- | + | <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 == | ||
- | + | '''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. | |
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- | '''ADP-ribose pyrophosphatase''' (ADPRP) catalyzes the reaction which converts ADP-ribose to AMP and D-ribose 5-phosphate. ADPRP contains Mg+2 | + | |
- | == | + | == Structural highlights == |
- | + | 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>. | ||
- | + | ==3D structures of ADP-ribose pyrophosphatase== | |
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- | + | [[ADP-ribose pyrophosphatase 3D structures]] | |
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- | + | </StructureSection> | |
- | + | == References == | |
- | + | <references/> | |
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[[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