Literature summary for 1.5.3.17 extracted from

Fincato, P.; Moschou, P.N.; Spedaletti, V.; Tavazza, R.; Angelini, R.; Federico, R.; Roubelakis-Angelakis, K.A.; Tavladoraki, P.
Functional diversity inside the Arabidopsis polyamine oxidase gene family (2010), J. Exp. Bot., 6, 1155-1168.

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KM Value [mM]

KM Value [mM]	KM Value Maximum [mM]	Substrate	Comment	Organism	Structure
0.045	-	norspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.05	-	thermospermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.233	-	N1-acetylspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.27	-	spermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.274	-	spermidine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.409	-	spermidine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.58	-	spermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
2	-	N1-acetylspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana

Organism

Organism	UniProt	Comment	Textmining
Arabidopsis thaliana	Q9LYT1	isoform PAO3	-
Arabidopsis thaliana	Q9SKX5	isoform PAO2	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
additional information	comparative study of the catalytic properties of recombinant AtPAO1, AtPAO2, AtPAO3, and AtPAO4. All four enzymes strongly resemble their mammalian counterparts, being able to oxidize the common polyamines Spd and/or Spm through a polyamine backconversion pathway	Arabidopsis thaliana	?	-	?
N1-acetylspermine + O2 + H2O	-	Arabidopsis thaliana	spermidine + 3-acetaminopropanal + H2O2	-	?
norspermine + O2 + H2O	-	Arabidopsis thaliana	? + H2O2	-	?
spermidine + O2 + H2O	-	Arabidopsis thaliana	putrescine + 3-aminopropanal + H2O2	-	?
spermine + O2 + H2O	-	Arabidopsis thaliana	spermidine + aminopropanal + H2O2	-	?
thermospermine + O2 + H2O	-	Arabidopsis thaliana	? + H2O2	-	?

Synonyms

Synonyms	Comment	Organism
PAO2	-	Arabidopsis thaliana
PAO3	-	Arabidopsis thaliana

Turnover Number [1/s]

Turnover Number Minimum [1/s]	Turnover Number Maximum [1/s]	Substrate	Comment	Organism	Structure
0.02	-	N1-acetylspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.4	-	thermospermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.5	-	thermospermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
0.8	-	N1-acetylspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
1.1	-	norspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
1.7	-	spermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
2.9	-	norspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
3.4	-	spermidine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
4.2	-	spermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
4.6	-	spermidine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana

kcat/KM [mM/s]

kcat/KM Value [1/mMs^-1]	kcat/KM Value Maximum [1/mMs^-1]	Substrate	Comment	Organism	Structure
0.01	-	N1-acetylspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
2.9	-	spermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
3.4	-	N1-acetylspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
10	-	thermospermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
11.2	-	spermidine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
12.4	-	spermidine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
15.6	-	spermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana
24.4	-	norspermine	pH 7.5, temperature not specified in the publication	Arabidopsis thaliana

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Release 2023.1 (January 2023)