Literature summary for 4.3.1.19 extracted from

Muramatsu, N.; Nosoh, Y.
Some catalytic and molecular properties of threonine deaminase from Bacillus stearothermophilus (1996), J. Biochem., 80, 485-490.

Search for more literature for 4.3.1.19

Inhibitors

Inhibitors	Comment	Organism	Structure
Ile	more sensitive at 40 C than at 65 C	Geobacillus stearothermophilus
L-Val	slight inhibition	Geobacillus stearothermophilus

KM Value [mM]

KM Value [mM]	KM Value Maximum [mM]	Substrate	Comment	Organism	Structure
5.7	-	L-Thr	at 40°C	Geobacillus stearothermophilus
13.9	-	L-Thr	at 65°C	Geobacillus stearothermophilus

Molecular Weight [Da]

Molecular Weight [Da]	Molecular Weight Maximum [Da]	Comment	Organism
49000	-	4 * 49000, SDS-PAGE	Geobacillus stearothermophilus
200000	-	gel filtration	Geobacillus stearothermophilus

Organism

Organism	UniProt	Comment	Textmining
Geobacillus stearothermophilus	-	-	-

Purification (Commentary)

Purification (Comment)	Organism
-	Geobacillus stearothermophilus

Storage Stability

Storage Stability	Organism
4°C, pH 7.2 or 9.0, 24 h, complete inactivation after 7 days, stable in presence of egg albumin	Geobacillus stearothermophilus

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
L-threonine	-	Geobacillus stearothermophilus	2-oxobutanoate + NH3	-	?

Subunits

Subunits	Comment	Organism
tetramer	4 * 49000, SDS-PAGE	Geobacillus stearothermophilus

Temperature Optimum [°C]

Temperature Optimum [°C]	Temperature Optimum Maximum [°C]	Comment	Organism
65	-	-	Geobacillus stearothermophilus

pH Optimum

pH Optimum Minimum	pH Optimum Maximum	Comment	Organism
9.2	9.6	at 40 C and 65 C	Geobacillus stearothermophilus

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Release 2023.1 (January 2023)