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acetyl-CoA + serotonin
CoA + N-acetylserotonin
acetyl-CoA + tryptamine
CoA + N-acetyltryptamine
-
-
-
?
acetyl-CoA + 2,5-dimethoxyphenylethylamine
CoA + N-acetyl-2,5-dimethoxyphenylethylamine
-
68% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(2,3-dichlorophenyl)-ethylamine
CoA + N-acetyl-2-(2,3-dichlorophenyl)-ethylamine
-
84% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(2-chlorophenyl)-ethylamine
CoA + N-acetyl-2-(2-chlorophenyl)-ethylamine
-
102% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(3,4-dihydroxyphenyl)-ethylamine
CoA + N-acetyl-2-(3,4-dihydroxyphenyl)-ethylamine
-
64% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(3,4-dimethoxyphenyl)-ethylamine
CoA + N-acetyl-2-(3,4-dimethoxyphenyl)-ethylamine
-
15% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(3-chlorophenyl)-ethylamine
CoA + N-acetyl-2-(3-chlorophenyl)-ethylamine
-
110% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(3-fluorophenyl)-ethylamine
CoA + N-acetyl-2-(3-fluorophenyl)-ethylamine
-
93% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(4-bromophenyl)-ethylamine
CoA + N-acetyl-2-(4-bromophenyl)-ethylamine
-
87% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(4-chlorophenyl)ethylamine
CoA + N-acetyl-2-(4-chlorophenyl)ethylamine
-
91% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(4-fluorophenyl)-ethylamine
CoA + N-acetyl-2-(4-fluorophenyl)-ethylamine
-
60% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(p-fluorophenyl)-ethylamine
CoA + N-acetyl-2-(p-fluorophenyl)-ethylamine
-
as active as with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(p-nitrophenyl)-ethylamine
CoA + N-acetyl-2-(p-nitrophenyl)-ethylamine
-
53% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-(p-tolyl)-ethylamine
CoA + N-acetyl-2-(p-tolyl)-ethylamine
-
87% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-fluorophenylethylamine
CoA + N-acetyl-2-fluorophenylethylamine
-
52% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-methoxyphenylethylamine
CoA + N-acetyl-2-methoxyphenylethylamine
-
97% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 2-phenylethylamine
CoA + N-acetyl-2-phenylethylamine
-
-
-
-
?
acetyl-CoA + 3-hydroxy-4-methoxyphenethylamine
CoA + N-acetyl-3-hydroxy-4-methoxyphenethylamine
-
7.2% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 3-hydroxyphenethylamine
CoA + N-acetyl-3-hydroxyphenethylamine
-
36% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 3-indolebutylamine
CoA + N-acetyl-(3-indol-3-yl-butyl)-amine
-
60-fold less efficiently than serotonin
-
-
?
acetyl-CoA + 3-indolepropylamine
CoA + N-acetyl-(3-indol-3-yl-propyl)-amine
-
20-fold less efficiently than serotonin
-
-
?
acetyl-CoA + 3-methoxy-2-phenylethylamine
CoA + N-acetyl-3-methoxy-2-phenylethylamine
-
55% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 3-methoxytyramine
CoA + N-acetyl-3-methoxytyramine
-
73% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 4-(2-aminoethyl)-benzenesulfonamide
CoA + ?
-
1% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 4-(2-aminoethyl)-benzenesulfonyl fluoride
CoA + ?
-
7.4% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 4-methoxyphenylethylamine
CoA + N-acetyl-4-methoxyphenylethylamine
-
10% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 5-hydroxydopamine
CoA + N-acetyl-5-hydroxydopamine
-
4.4% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + 5-methoxytryptamine
CoA + N-acetyl-5-methoxytryptamine
-
-
-
-
?
acetyl-CoA + 6-fluorotryptamine
CoA + N-acetyl-6-fluorotryptamine
-
-
-
-
?
acetyl-CoA + 6-hydroxydopamine
CoA + N-acetyl-6-hydroxydopamine
-
1.5% of the activity with 2-phenylethylamine
-
-
?
acetyl-CoA + alpha-methyltryptamine
CoA + N-acetyl-alpha-methyltryptamine
-
racemic, 9:1 stereoselectivity for R-enantiomer, less efficiently than serotonin
-
-
?
acetyl-CoA + beta-phenylethylamine
CoA + N-(2-phenylethyl)-acetaminde
-
-
-
-
?
acetyl-CoA + Nomega-methyltryptamine
CoA + ?
-
less efficiently than serotonin
-
-
?
acetyl-CoA + serotonin
CoA + N-acetylserotonin
acetyl-CoA + tryptamine
CoA + N-acetyltryptamine
acetyl-CoA + tryptamine
N-acetyltryptamine + CoA
-
-
-
-
?
acetyl-CoA + tryptophol
CoA + N-acetyltryptophol
-
structural analogue to tryptamine
-
-
?
acetyl-CoA + tyramine
CoA + N-acetyltyramine
-
10% of the activity with 2-phenylethylamine
-
-
?
additional information
?
-
acetyl-CoA + serotonin
CoA + N-acetylserotonin
penultimate step in melatonin biosynthesis
-
-
?
acetyl-CoA + serotonin
CoA + N-acetylserotonin
reaction mechanism involving Pro64 that plays a critical role in structure and catalysis
-
-
?
acetyl-CoA + serotonin
CoA + N-acetylserotonin
-
-
-
-
?
acetyl-CoA + serotonin
CoA + N-acetylserotonin
-
i.e. 5-hydroxytryptamine
-
?
acetyl-CoA + serotonin
CoA + N-acetylserotonin
-
i.e. 5-hydroxytryptamine
-
-
?
acetyl-CoA + serotonin
CoA + N-acetylserotonin
-
initial reaction in melatonin synthesis from serotonin
-
-
?
acetyl-CoA + serotonin
CoA + N-acetylserotonin
-
penultimate enzyme in melatonin pathway
-
-
?
acetyl-CoA + tryptamine
CoA + N-acetyltryptamine
-
-
-
?
acetyl-CoA + tryptamine
CoA + N-acetyltryptamine
-
-
-
-
?
additional information
?
-
-
-
-
-
?
additional information
?
-
-
arylamines, such as aniline or p-phenetidine are very poor substrates
-
-
?
additional information
?
-
-
arylamines, such as aniline or p-phenetidine are very poor substrates
-
-
?
additional information
?
-
-
no activity with 2-(4-aminophenyl)-ethylamine, 3,4-(dibenzyloxy)phenethylamine or 2-(p-chlorophenoxy)-2-methylpropionic acid
-
-
?
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CoA-S-N-acetyl-7-hydroxynaphthylethylamine
fluorescent variant of CoA-T, a bisubstrate inhibitor, synthesis and enzyme binding structure, molecular modelling, overview
morin
0.1 mM, 2fold inhibition
myricetin
0.1 mM, 1.6fold inhibition
quercetin
0.1 mM, 1.2fold inhibition
tryptamine-coenzyme A
a bisubstrate inhibitor, enzyme binding structure, molecular modelling, overview
acetyl-CoA-tryptamine
-
IC50: 0.00062 mM, GST-AANAT fusion protein
alpha-trifluoromethyltryptamine
-
modest, competitive
bromoacetyltryptamine
-
IC50: 0.00128 mM, GST-AANAT fusion protein
desulfo-CoA
-
dead end inhibitor analog, competitive versus CoA
Disulfides
-
in vivo and in vitro, reversible by dithiothreitol
Peptides containing a disulfide bond
-
-
-
S 20251
-
IC50: 0.0013 mM, GST-AANAT fusion protein
S 27244
-
IC50: 0.00026 mM, GST-AANAT fusion protein
S 27481
-
IC50: 0.0004 mM, GST-AANAT fusion protein
S 28036
-
IC50: 0.00073 mM, GST-AANAT fusion protein
tryptophol
-
dead end inhibitor analog, competitive versus tryptamine
Zn2+
-
at low concentration
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0.47
2,5-dimethoxyphenylethylamine
-
pH 6.8, 37°C
3.46
2-(2,3-dichlorophenyl)-ethylamine
-
pH 6.8, 37°C
0.9
2-(2-chlorophenyl)-ethylamine
-
pH 6.8, 37°C
1.76
2-(3,4-dihydroxyphenyl)-ethylamine
-
pH 6.8, 37°C
1.31
2-(3-chlorophenyl)-ethylamine
-
pH 6.8, 37°C
1.65
2-(3-fluorophenyl)-ethylamine
-
pH 6.8, 37°C
1.55
2-(4-bromophenyl)-ethylamine
-
pH 6.8, 37°C
2.33
2-(4-chlorophenyl)ethylamine
-
pH 6.8, 37°C
1.28
2-(4-fluorophenyl)-ethylamine
-
pH 6.8, 37°C
1.91
2-(p-fluorophenyl)-ethylamine
-
pH 6.8, 37°C
1.405
2-(p-nitrophenyl)-ethylamine
-
pH 6.8, 37°C
1.58
2-(p-tolyl)-ethylamine
-
pH 6.8, 37°C
1.37
2-fluorophenylethylamine
-
pH 6.8, 37°C
0.49
2-methoxyphenylethylamine
-
pH 6.8, 37°C
1.8
2-Phenylethylamine
-
pH 6.8, 37°C
2.07
3-methoxy-2-phenylethylamine
-
pH 6.8, 37°C
1.815
3-methoxytyramine
-
pH 6.8, 37°C
additional information
additional information
-
0.33
tryptamine
pH 6.8, 37°C, recombinant wild-type enzyme
2.3
tryptamine
pH 6.8, 37°C, recombinant mutant I57A/V59A
4
tryptamine
above, pH 6.8, 37°C, recombinant mutants P64A, P64G, P64W, and recombinant truncation mutants
0.18
acetyl-CoA
-
-
0.265
acetyl-CoA
-
pH 6.8, 37°C
0.125
serotonin
-
-
0.64
serotonin
-
pH 6.8, 37°C
0.11
tryptamine
-
-
0.17
tryptamine
-
pH 6.8, 30°C, phosphorylated T31, unphosphorylated S205
0.18
tryptamine
-
pH 6.8, 30°C, unphosphorylated enzyme
0.25
tryptamine
-
pH 6.8, 30°C, mutant enzyme S205A, phosphorylated T31
0.28
tryptamine
-
pH 6.8, 30°C, mutant enzyme S205A, unphosphorylated
0.3
tryptamine
-
pH 6.8, 30°C, mutant enzyme T31A, phosphorylated S205
0.31
tryptamine
-
pH 6.8, 30°C, mutant enzyme T31A, unphosphorylated
additional information
additional information
kinetics of recombinant wild-type and mutant enzymes, substrate tryptamine, overview
-
additional information
additional information
-
apparent Km-values
-
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H120Q
crystallographic studies, role in enzymic reaction
H122Q
crystallographic studies, role in enzymic reaction
H122Q/H120Q
crystallographic studies, role in enzymic reaction
I57A/V59A
site-directed mutagenesis, the mutant shows reduced enzyme activity and altered inhibitor binding compared to the wild-type enzyme
P64A
site-directed mutagenesis, the mutant shows reduced enzyme activity and altered inhibitor binding compared to the wild-type enzyme
P64G
site-directed mutagenesis, the mutant shows reduced enzyme activity and altered inhibitor binding compared to the wild-type enzyme
P64W
site-directed mutagenesis, the mutant shows reduced enzyme activity and altered inhibitor binding compared to the wild-type enzyme
Y168F
crystallographic studies, role in enzymic reaction
S205A
-
1.6fold increase in Km-value for tryptamine compared to wild-type enzyme
T31A
-
1.7fold increase in KM-value for tryptamine compared to wild-type enzyme
additional information
phosphonodifluoromethylene alanine at Ser-205 is synthesized and fused to bacterially expressed AANAT30199 using expressed protein ligation. The resulting semisynthetic protein has enhanced affinity for the expressed 14-3-3 protein and exhibits greater cellular stability in microinjection experiments, as compared with the unmodified AANAT
additional information
construction of truncation mutants with reduced enzyme activity
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Namboodiri, M.A.A.; Dubbels, R.; Klein, D.C.
Arylalkylamine N-acetyltransferase from mammalian pineal gland
Methods Enzymol.
142
583-590
1987
Ovis aries, Rattus norvegicus
brenda
Voisin, P.; Namboodiri, M.A.A.; Klein, D.C.
Arylamine N-acetyltransferase and arylalkylamine N-acetyltransferase in the mammalian pineal gland
J. Biol. Chem.
259
10913-10918
1984
Ovis aries, Rattus norvegicus
brenda
Namboodiri, M.A.A.; Brownstein, M.J.; Voisin, P.; Weller, J.L.; Klein, D.C.
A simple and rapid method for the purification of ovine pineal arylalkylamine N-acetyltransferase
J. Neurochem.
48
580-585
1987
Ovis aries, Rattus norvegicus
brenda
Fleming, J.V.; Barrett, P.; Coon, S.L.; Klein, D.C.; Morgan, P.J.
Ovine arylalkylamine N-acetyltransferase in the pineal and pituitary glands: differences in function and regulation
Endocrinology
140
972-978
1999
Ovis aries
brenda
Obsil, T.; Ghirlando, R.; Klein, D.C.; Ganguly, S.; Dyda, F.
Crystal structure of the 14-3-3zeta:serotonin N-acetyltransferase complex: a role for scaffolding in enzyme regulation
Cell
105
257-267
2001
Ovis aries
brenda
De Angelis, J.; Gastel, J.; Klein, D.C.; Cole, P.A.
Kinetic analysis of the catalytic mechanism of serotonin N-acetyltransferase (EC 2.3.1.87)
J. Biol. Chem.
273
3045-3050
1998
Ovis aries
brenda
Scheibner, K.A.; De Angelis, J.; Burley, S.K.; Cole, P.A.
Investigation of the roles of catalytic residues in serotonin N-acetyltransferase
J. Biol. Chem.
277
18118-18126
2002
Ovis aries (Q29495)
brenda
Khalil, E.M.; De Angelis, J.; Cole, P.A.
Indoleamine analogs as probes of the substrate selectivity and catalytic mechanism of serotonin N-acetyltransferase
J. Biol. Chem.
273
30321-30327
1998
Ovis aries
brenda
Ferry, G.; Loynel, A.; Kucharczyk, N.; Bertin, S.; Rodriguez, M.; Delagrange, P.; Galizzi, J.P.; Jacoby, E.; Volland, J.P.; Lesieur, D.; Renard, P.; Canet, E.; Fauchere, J.L.; Boutin, J.A.
Substrate specificity and inhibition studies of human serotonin N-acetyltransferase
J. Biol. Chem.
275
8794-8805
2000
Ovis aries, Homo sapiens
brenda
Ganguly, S.; Weller, J.L.; Ho, A.; Chemineau, P.; Malpaux, B.; Klein, D.C.
Melatonin synthesis: 14-3-3-dependent activation and inhibition of arylalkylamine N-acetyltransferase mediated by phosphoserine-205
Proc. Natl. Acad. Sci. USA
102
1222-1227
2005
Ovis aries
brenda
Ferry, G.; Ubeaud, C.; Dauly, C.; Mozo, J.; Guillard, S.; Berger, S.; Jimenez, S.; Scoul, C.; Leclerc, G.; Yous, S.; Delagrange, P.; Boutin, J.A.
Purification of the recombinant human serotonin N-acetyltransferase (EC 2.3.1.87): further characterization of and comparison with AANAT from other species
Protein Expr. Purif.
38
84-98
2004
Ovis aries, Homo sapiens (Q16613), Homo sapiens, Rattus norvegicus (Q64666)
brenda
Zheng, W.; Schwarzer, D.; Lebeau, A.; Weller, J.L.; Klein, D.C.; Cole, P.A.
Cellular stability of serotonin N-acetyltransferase conferred by phosphonodifluoromethylene alanine (Pfa) substitution for Ser-205
J. Biol. Chem.
280
10462-10467
2005
Ovis aries (Q29495)
brenda
Pavlicek, J.; Coon, S.L.; Ganguly, S.; Weller, J.L.; Hassan, S.A.; Sackett, D.L.; Klein, D.C.
Evidence that proline focuses movement of the floppy loop of arylalkylamine N-acetyltransferase (EC 2.3.1.87)
J. Biol. Chem.
283
14552-14558
2008
Ovis aries (Q29495)
brenda
Byeon, Y.; Back, K.
Melatonin production in Escherichia coli by dual expression of serotonin N-acetyltransferase and caffeic acid O-methyltransferase
Appl. Microbiol. Biotechnol.
100
6683-6691
2016
Ovis aries (Q29495)
brenda
Lee, K.; Hwang, O.J.; Reiter, R.J.; Back, K.
Flavonoids inhibit both rice and sheep serotonin N-acetyltransferases and reduce melatonin levels in plants
J. Pineal Res.
65
e12512
2018
Oryza sativa, Ovis aries (Q29495), Ovis aries
brenda