2.1.1.11: magnesium protoporphyrin IX methyltransferase
This is an abbreviated version!
For detailed information about magnesium protoporphyrin IX methyltransferase, go to the full flat file.
Word Map on EC 2.1.1.11
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2.1.1.11
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chlorophyll
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chlm
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chelatase
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tetrapyrrole
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chloroplast
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synechocystis
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plastid
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monomethyl
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branchpoint
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protochlorophyllide
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mg-chelatase
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monomethylester
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5-aminolevulinate
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rhodobacter
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capsulatus
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bacteriochlorophyll
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plastid-to-nucleus
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photosystems
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nonautonomous
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quenched-flow
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chlorophyll-deficient
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ferrochelatase
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analysis
- 2.1.1.11
- chlorophyll
- chlm
- chelatase
- tetrapyrrole
- chloroplast
- synechocystis
- plastid
-
monomethyl
-
branchpoint
- protochlorophyllide
-
mg-chelatase
-
monomethylester
- 5-aminolevulinate
-
rhodobacter
- capsulatus
- bacteriochlorophyll
-
plastid-to-nucleus
-
photosystems
-
nonautonomous
-
quenched-flow
-
chlorophyll-deficient
-
ferrochelatase
- analysis
Reaction
Synonyms
(-)-S-adenosyl-L-methionine:magnesium-protoporphyrin IX methyltransferase, BchM, ChlM, LOC_Os06g04150, magnesium protoporphyrin IX methyltransferase, magnesium protoporphyrin methyltransferase, magnesium protoporphyrin O-methyltransferase, methyltransferase, magnesium protoporphyrin, Mg-protoporphyrin IX methyltransferase, MgPIXMT protein, MgPMT, S-adenosyl-L-methionine:Mg protoporphyrin methyltransferase, Ygl18
ECTree
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Engineering
Engineering on EC 2.1.1.11 - magnesium protoporphyrin IX methyltransferase
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C111S/C115S
only residual in vitro activity under reducing conditions, almost complete loss of activity under non-reducing conditions
C115S
20% of wild-type activity, strong stimulation by dithiothreitol
C115S/C177S
only residual in vitro activity under reducing conditions, almost complete loss of activity under non-reducing conditions
C177S
residue is responsible for redox-dependent enzyme activation. In absence of dithiothreitol, increased activity compared with wild-type. Only slight activation by dithiothreitol
L271P
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naturally occuring mutation, Mg-protoporphyrin IX accumulated in the mutant, a low activity of the mutant protein is not excluded
L225F
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mutation yellow-green leaf 18, leads to yellow-green leaves, decreased chlorophyll level, and climate-dependent growth differences
H139A
loss of more than 80% of methyltransferase activity, mutant has comparable Kd values for Mg-phosphate as the wild type protein
H139N
loss of more than 80% of methyltransferase activity, mutant has comparable Kd values for Mg-phosphate as the wild type protein
H139Q
loss of more than 80% of methyltransferase activity, mutant has comparable Kd values for Mg-phosphate as the wild type protein
Y28A
loss of more than 80% of methyltransferase activity, mutant has comparable Kd values for Mg-phosphate as the wild type protein
Y28F
mutation leads to inclusion body formation during bacterial expression