2.3.1.B43: protein-lysine desuccinylase (NAD+)
This is an abbreviated version!
For detailed information about protein-lysine desuccinylase (NAD+), go to the full flat file.
Word Map on EC 2.3.1.B43
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2.3.1.B43
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sirtuins
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sirt3
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deacetylation
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deacetylases
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desuccinylation
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malonylation
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nad-dependent
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sirt1-7
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glutarylation
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diagnostics
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medicine
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drug development
- 2.3.1.B43
- sirtuins
- sirt3
-
deacetylation
- deacetylases
-
desuccinylation
-
malonylation
-
nad-dependent
-
sirt1-7
-
glutarylation
- diagnostics
- medicine
- drug development
Reaction
Synonyms
CobB, CobB Sir2 protein, histone desuccinylase, hSIRT5, hSIRT6, lysine desuccinylase, mitochondrial NAD+-dependent lysine deacylase, NAD+ dependent deacetylase, NAD+-dependent protein deacetylase, NAD+-dependent protein deacylase, NAD+-dependent sirtuin deacetylase, nicotinamide adenine dinucleotide-dependent protein deacetylase, Sir2Af1, SIRT5, SIRT5iso1, SIRT5iso2, SIRT5iso3, SIRT5iso4, sirtuin 5, sirtuin 5 deacylase, sirtuin 5 lysine deacylase, sirtuin deacylase, sirtuin-5, zSIRT5
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Reaction
Reaction on EC 2.3.1.B43 - protein-lysine desuccinylase (NAD+)
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NAD+ + [protein]-N6-acetyl-L-lysine = nicotinamide + [protein]-L-lysine + 2'-O-acetyl-ADP-ribose
NAD+ + [protein]-N6-succinyl-L-lysine = nicotinamide + [protein]-L-lysine + 2'-O-succinyl-ADP-ribose
crystallographic evidence is provided that 2'-O-acetyl ADP-ribose is a final product in the Sir2 reaction. A revised mechanism for catalysis based on the structural and functional characterization of Sir2 mutants is proposed. In this mechanism, the activation of the 2'-OH of nicotinamide ribose by His-116 is essential for the hydrolysis of the acetyl groups from N-acetyl lysine. The conserved Ser-24 and Asp-101 participate in the stabilization of local structure for NAD binding rather than direct involvement in catalysis
NAD+ + [protein]-N6-acetyl-L-lysine = nicotinamide + [protein]-L-lysine + 2'-O-acetyl-ADP-ribose
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