NudT16: Difference between revisions

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==Introduction==
==Introduction==
NudT16 is a hydrolase and belongs to the nucleoside diphosphate-linked moiety X (Nudix) family. This protein regulates levels of 53BP1 which is a protein that recruits other proteins to the site of a DNA breakage. NudT16 has also shown in vitro to remove ADP-ribosylation through its hydrolase activities.   
NudT16 is a member of the Nudix superfamily of hydrolases which break a phosphoester bond between the two phosphates in nucleoside diphosphate-linked to moiety X proteins resulting in a nucleoside monophosphate (NMP) and a phosphate linked to moiety X. Nudix hydrolases are characterized by a catalytically relevant Nudix box consisting of 23 highly conserved residues (G1Z2-6E7Z8-14R15E16U17Z18E19E20Z21G22U23 where Z is any amino acid and U is an aliphatic and hydrophobic residue). While NudT16 was initially described as a nuclear RNA and cytoplasmic mRNA decapping enzyme, further studies have shown that it also effectively hydrolyzes inosine diphsophate (IDP) and its hazardous deoxyribose cognate (dIDP) into inosine monophsophate (IMP) and deoxy inosine monophosphate (dIMP), respectively [1]. NudT16 has also been shown to regulate levels of 53BP1, an adaptor protein that recruits other proteins to the site of a DNA breakage, through hydrolytic removal of ADP-ribose from ADP-ribosylated 53BP1 [2].   


==Structure==
==Structure==

Revision as of 00:32, 1 July 2020

IntroductionIntroduction

NudT16 is a member of the Nudix superfamily of hydrolases which break a phosphoester bond between the two phosphates in nucleoside diphosphate-linked to moiety X proteins resulting in a nucleoside monophosphate (NMP) and a phosphate linked to moiety X. Nudix hydrolases are characterized by a catalytically relevant Nudix box consisting of 23 highly conserved residues (G1Z2-6E7Z8-14R15E16U17Z18E19E20Z21G22U23 where Z is any amino acid and U is an aliphatic and hydrophobic residue). While NudT16 was initially described as a nuclear RNA and cytoplasmic mRNA decapping enzyme, further studies have shown that it also effectively hydrolyzes inosine diphsophate (IDP) and its hazardous deoxyribose cognate (dIDP) into inosine monophsophate (IMP) and deoxy inosine monophosphate (dIMP), respectively [1]. NudT16 has also been shown to regulate levels of 53BP1, an adaptor protein that recruits other proteins to the site of a DNA breakage, through hydrolytic removal of ADP-ribose from ADP-ribosylated 53BP1 [2].

StructureStructure

NudT16

NudT16 is a dimer

Your Heading Here (maybe something like 'Structure')Your Heading Here (maybe something like 'Structure')


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Crystal structure of HsNUDT16 in complex with diADPR (PDB entry 6B09)

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FunctionFunction

DiseaseDisease

RelevanceRelevance

Structural highlightsStructural highlights

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ReferencesReferences

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Tihitina Y Aytenfisu, Hannah Campbell, Sandra B. Gabelli, Michal Harel