Literature summary for 4.99.1.10 extracted from

Buechert, A.; Civello, P.; Martinez, G.
Characterization of Mg-dechelating substance in senescent and pre-senescent Arabidopsis thaliana leaves (2011), Biol. Plant., 55, 75-82 .

No PubMed abstract available

Search for more literature for 4.99.1.10

Activating Compound

Activating Compound	Comment	Organism	Structure
EDTA	170.72% activity at 40 mM	Arabidopsis thaliana
H2O2	122.39% activity at 0.1 mM	Arabidopsis thaliana

Inhibitors

Inhibitors	Comment	Organism	Structure
HgCl2	21.25% residual activity at 10 mM	Arabidopsis thaliana
MgCl2	16% residual activity at 1 mM	Arabidopsis thaliana
reduced glutathione	56.59% residual activity at 10 mM	Arabidopsis thaliana

KM Value [mM]

KM Value [mM]	KM Value Maximum [mM]	Substrate	Comment	Organism	Structure
0.000062	-	chlorophyllin a	at pH 7.2 and 50°C	Arabidopsis thaliana

Metals/Ions

Metals/Ions	Comment	Organism	Structure
additional information	not influenced by K+	Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
chlorophyllide a + 2 H+	Arabidopsis thaliana	-	pheophorbide a + Mg2+	-	?

Organism

Organism	UniProt	Comment	Textmining
Arabidopsis thaliana	-	ecotype Col-0	-

Source Tissue

Source Tissue	Comment	Organism	Textmining
leaf	-	Arabidopsis thaliana	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
chlorophyllide a + 2 H+	-	Arabidopsis thaliana	pheophorbide a + Mg2+	-	?
chlorophyllin a + 2 H+	-	Arabidopsis thaliana	pheophytin a + Mg2+	-	?

Subunits

Subunits	Comment	Organism
?	x * 42000, SDS-PAGE	Arabidopsis thaliana

Synonyms

Synonyms	Comment	Organism
MDS	-	Arabidopsis thaliana
Mg-dechelatase	-	Arabidopsis thaliana
SGR	-	Arabidopsis thaliana

Temperature Optimum [°C]

Temperature Optimum [°C]	Temperature Optimum Maximum [°C]	Comment	Organism
50	-	-	Arabidopsis thaliana

pH Optimum

pH Optimum Minimum	pH Optimum Maximum	Comment	Organism
7.2	-	-	Arabidopsis thaliana

Expression

Organism	Comment	Expression
Arabidopsis thaliana	during dark-induced senescence, the activity increases over time until reaching a maximum at day 4, and then decreases	up

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)