Literature summary for 4.4.1.13 extracted from

McCluskey, T.J.; Scarf, A.R.; Anderson, J.W.
Enzyme catalysed alpha,beta-elimination of selenocystathionine and selenocystine and their sulphur isologues by plant extracts (1986), Phytochemistry, 25, 2063-2068.

No PubMed abstract available

Search for more literature for 4.4.1.13

Inhibitors

Inhibitors	Comment	Organism	Structure
Beta-cyanoalanine	competitive	Astragalus sinicus
Beta-cyanoalanine	competitive	Pisum sativum
Beta-cyanoalanine	competitive	Spinacia oleracea
iodoacetate	-	Pisum sativum
NEM	-	Pisum sativum
NEM	-	Spinacia oleracea

KM Value [mM]

KM Value [mM]	KM Value Maximum [mM]	Substrate	Comment	Organism	Structure
additional information	-	additional information	-	Pisum sativum
0.2	-	L-djenkolate	-	Spinacia oleracea
0.35	-	L-selenocystathionine	-	Spinacia oleracea
0.48	-	L-cystathionine	-	Spinacia oleracea
5.4	-	L-cystine	-	Spinacia oleracea

Organism

Organism	UniProt	Comment	Textmining
Astragalus sinicus	-	-	-
Pisum sativum	-	-	-
Spinacia oleracea	-	-	-

Purification (Commentary)

Purification (Comment)	Organism
-	Pisum sativum

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg]	Specific Activity Maximum [µmol/min/mg]	Comment	Organism
0.0091	-	-	Pisum sativum

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
L-cystathionine + H2O	-	Spinacia oleracea	L-homocysteine + NH3 + pyruvate	-	?
L-cystathionine + H2O	-	Pisum sativum	L-homocysteine + NH3 + pyruvate	-	?
L-cystathionine + H2O	-	Astragalus sinicus	L-homocysteine + NH3 + pyruvate	-	?
L-cystine + H2O	-	Spinacia oleracea	L-thiocysteine + pyruvate + NH3	-	?
L-cystine + H2O	-	Pisum sativum	L-thiocysteine + pyruvate + NH3	-	?
L-cystine + H2O	-	Astragalus sinicus	L-thiocysteine + pyruvate + NH3	-	?
L-djenkolate + H2O	-	Spinacia oleracea	pyruvate	-	?
L-djenkolate + H2O	-	Pisum sativum	pyruvate	-	?
L-djenkolate + H2O	-	Astragalus sinicus	pyruvate	-	?
L-selenocystathionine + H2O	-	Spinacia oleracea	?	-	?
L-selenocystathionine + H2O	-	Pisum sativum	?	-	?
L-selenocystathionine + H2O	-	Astragalus sinicus	?	-	?

Use of this online version of BRENDA is free under the CC BY 4.0 license. See terms of use for full details.

Release 2023.1 (January 2023)