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The acetyl group from acetyl-CoA is transferred to the NAT1
Stable Identifier
R-HSA-174959
Type
Reaction [transition]
Species
Homo sapiens
Compartment
cytosol
ReviewStatus
5/5
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Metabolism (Homo sapiens)
Biological oxidations (Homo sapiens)
Phase II - Conjugation of compounds (Homo sapiens)
Acetylation (Homo sapiens)
The acetyl group from acetyl-CoA is transferred to the NAT1 (Homo sapiens)
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The layout of this reaction may differ from that in the pathway view due to the constraints in pathway layout
N-acetylation occurs in two sequential steps via a
ping-pong Bi-Bi mechanism
. In the first step, the acetyl group from acetyl-CoA is transferred to a conserved cysteine residue (position 68) in the active site of NAT, with consequent release of coenzyme-A. In the second step, the acetyl group is transferred to the acceptor substrate and the enzyme returns to its initial state.
Literature References
PubMed ID
Title
Journal
Year
1559981
Site-directed mutagenesis of recombinant human arylamine N-acetyltransferase expressed in Escherichia coli. Evidence for direct involvement of Cys68 in the catalytic mechanism of polymorphic human NAT2.
Grant, DM
,
Dupret, JM
J Biol Chem
1992
Participants
Input
Ac-CoA [cytosol]
NAT1 [cytosol]
(Homo sapiens)
Output
AcC-NAT1 [cytosol]
(Homo sapiens)
CoA-SH [cytosol]
Participates
as an event of
Acetylation (Homo sapiens)
Orthologous Events
The acetyl group from acetyl-CoA is transferred to the NAT1 (Bos taurus)
The acetyl group from acetyl-CoA is transferred to the NAT1 (Danio rerio)
The acetyl group from acetyl-CoA is transferred to the NAT1 (Gallus gallus)
The acetyl group from acetyl-CoA is transferred to the NAT1 (Mus musculus)
The acetyl group from acetyl-CoA is transferred to the NAT1 (Rattus norvegicus)
The acetyl group from acetyl-CoA is transferred to the NAT1 (Sus scrofa)
Authored
Jassal, B (2005-02-09)
Reviewed
D'Eustachio, P (2008-05-28)
Created
Jassal, B (2006-02-23)
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