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Literature summary for 3.5.4.11 extracted from

  • Hall, R.S.; Agarwal, R.; Hitchcock, D.; Sauder, J.M.; Burley, S.K.; Swaminathan, S.; Raushel, F.M.
    Discovery and structure determination of the orphan enzyme isoxanthopterin deaminase (2010), Biochemistry, 49, 4374-4382.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
-
unidentified prokaryotic organism

Crystallization (Commentary)

Crystallization (Comment) Organism
vapor diffusion method, diffraction quality crystals of the selenomethionine form of Sgx9339a are obtained in trigonal space group P3121 at room temperature unidentified prokaryotic organism

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.008
-
2-aminopteridine-4,7(1H,8H)-dione pH 8.5, 30°C unidentified prokaryotic organism
0.14
-
2-amino-4-oxo-3,4-dihydropteridine-6-carboxylic acid pH 8.5, 30°C unidentified prokaryotic organism

Organism

Organism UniProt Comment Textmining
unidentified prokaryotic organism P0CI72
-
-

Purification (Commentary)

Purification (Comment) Organism
-
unidentified prokaryotic organism

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-amino-4-oxo-3,4-dihydropteridine-6-carboxylic acid + H2O i.e. pterin 6-carboxylate unidentified prokaryotic organism 2,4-dioxo-1,2,3,4-tetrahydropteridine-6-carboxylic acid + NH3 i.e. 2,4-dioxo-pteridine-6-carboxylate ?
2-aminopteridine-4,7(1H,8H)-dione + H2O i.e. isoxanthopterin. The enzyme specifically deaminates pterin, isoxanthopterin and tetrahydropterin unidentified prokaryotic organism 7-hydroxypteridine-2,4(1H,3H)-dione + NH3 i.e. 7-hydroxylumazine ?

Synonyms

Synonyms Comment Organism
Sgx9339a
-
unidentified prokaryotic organism

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
1.01
-
2-amino-4-oxo-3,4-dihydropteridine-6-carboxylic acid pH 8.5, 30°C unidentified prokaryotic organism
1.05
-
2-aminopteridine-4,7(1H,8H)-dione pH 8.5, 30°C unidentified prokaryotic organism

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
7.2
-
2-amino-4-oxo-3,4-dihydropteridine-6-carboxylic acid pH 8.5, 30°C unidentified prokaryotic organism
131.3
-
2-aminopteridine-4,7(1H,8H)-dione pH 8.5, 30°C unidentified prokaryotic organism