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Literature summary for 2.1.1.17 extracted from

  • Tahara, Y.; Ogawa, Y.; Sakakibara, T.; Yamada, Y.
    Purification and characterization of phosphatidylethanolamine N-methyltransferase from Zymomonas mobilis (1987), Agric. Biol. Chem., 51, 1425-1430.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
L-Cys enhances activity, optimal concentration 10 mM Zymomonas mobilis
Triton X-100 enhances activity, optimal concentration 0.04% Zymomonas mobilis

Inhibitors

Inhibitors Comment Organism Structure
S-adenosylhomocysteine competitive with respect to S-adenosylmethionine Zymomonas mobilis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0019
-
S-adenosylmethionine reaction with phosphatidyl-N-monomethylethanolamine Zymomonas mobilis
0.0036
-
S-adenosylmethionine reaction with phosphatidylethanolamine Zymomonas mobilis
0.0039
-
S-adenosylmethionine phosphatidyl-N,N-dimethylethanolamine Zymomonas mobilis
0.0175
-
phosphatidyl-N-methylethanolamine
-
Zymomonas mobilis
0.0336
-
phosphatidylethanolamine
-
Zymomonas mobilis
0.0405
-
phosphatidyl-N-methylethanolamine
-
Zymomonas mobilis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
42000
-
3 * 42000, SDS-PAGE Zymomonas mobilis
120000
-
gel filtration Zymomonas mobilis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
S-adenosyl-L-methionine + phosphatidyl-N,N-dimethylethanolamine Zymomonas mobilis
-
S-adenosyl-L-homocysteine + phosphatidylcholine
-
?
S-adenosyl-L-methionine + phosphatidyl-N-methylethanolamine Zymomonas mobilis
-
S-adenosyl-L-homocysteine + phosphatidyl-N,N-dimethylethanolamine
-
?
S-adenosyl-L-methionine + phosphatidylethanolamine Zymomonas mobilis the first-step methylation from phosphatidylethanolamine to phosphatidylcholine is rate-limiting S-adenosyl-L-homocysteine + phosphatidyl-N-methylethanolamine
-
?

Organism

Organism UniProt Comment Textmining
Zymomonas mobilis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Zymomonas mobilis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Zymomonas mobilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-homocysteine + phosphatidyl-N-methylethanolamine
-
Zymomonas mobilis S-adenosyl-L-methionine + phosphatidylethanolamin
-
?
S-adenosyl-L-methionine + phosphatidyl-N,N-dimethylethanolamine
-
Zymomonas mobilis S-adenosyl-L-homocysteine + phosphatidylcholine
-
?
S-adenosyl-L-methionine + phosphatidyl-N-methylethanolamine
-
Zymomonas mobilis S-adenosyl-L-homocysteine + phosphatidyl-N,N-dimethylethanolamine
-
?
S-adenosyl-L-methionine + phosphatidylethanolamine
-
Zymomonas mobilis S-adenosyl-L-homocysteine + phosphatidyl-N-methylethanolamine
-
?
S-adenosyl-L-methionine + phosphatidylethanolamine the first-step methylation from phosphatidylethanolamine to phosphatidylcholine is rate-limiting Zymomonas mobilis S-adenosyl-L-homocysteine + phosphatidyl-N-methylethanolamine
-
?

Subunits

Subunits Comment Organism
trimer 3 * 42000, SDS-PAGE Zymomonas mobilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Zymomonas mobilis

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.0048
-
S-adenosyl-L-homocysteine towards phosphatidyl-N,N-dimethylethanolamine Zymomonas mobilis
0.0087
-
S-adenosyl-L-homocysteine towards phosphatidyl-N-monomethylethanolamine Zymomonas mobilis
0.0118
-
S-adenosyl-L-homocysteine towards phosphatidylethanolamine Zymomonas mobilis