Activating Compound | Comment | Organism | Structure |
---|---|---|---|
2-mercaptoethanol | without 2 mM dithiothreirol or 2-mercaptoethanol in the reaction mixture, CofF activity is up to 5fold lower | Methanocaldococcus jannaschii | |
dithiothreitol | without 2 mM dithiothreirol or 2-mercaptoethanol in the reaction mixture, CofF activity is up to 5fold lower | Methanocaldococcus jannaschii |
Cloned (Comment) | Organism |
---|---|
expression in Escherichia coli | Methanocaldococcus jannaschii |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
alpha,beta-CH2-ATP | when added to a reaction mixture containing an equal amount of ATP, alpha,beta-CH2-ATP inhibits 30% of the activity | Methanocaldococcus jannaschii | |
KCl | in the presence of 0.1 M or 0.2 M KCl, activities are 40% and 15% relative to reactions without KCl | Methanocaldococcus jannaschii | |
additional information | no inhibition by beta,gamma-CH2-ATP | Methanocaldococcus jannaschii |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0012 | - |
coenzyme gamma-F420-2 | pH 8.5, 50°C | Methanocaldococcus jannaschii |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | the CofF protein strictly requires a divalent metal ion for ligase activity. CofF enzyme incubated with 10 mM MgCl2 has about 33% of the activity supported by 10 mM MnCl2 | Methanocaldococcus jannaschii | |
Mn2+ | the CofF protein strictly requires a divalent metal ion for ligase activity. CofF enzyme incubated with 10 mM MgCl2 has about 33% of the activity supported by 10 mM MnCl2 | Methanocaldococcus jannaschii |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
33278 | - |
1 * 33278, calculated from sequence | Methanocaldococcus jannaschii |
35000 | - |
1 * 35000, SDS-PAGE | Methanocaldococcus jannaschii |
37000 | - |
gel filtration | Methanocaldococcus jannaschii |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + coenzyme gamma-F420-2 + L-glutamate | Methanocaldococcus jannaschii | the enzyme caps the gamma-glutamyl tail of the hydride carrier coenzyme F420. CofF specifically adds an alpha-linked glutamate to gamma-F420-2 produced by the Methanococcus jannaschii CofE protein. Coenzyme F420-2 is coenzyme F420 with two glutamic acid residue, coenzyme F420-3 is coenzyme F420 with three glutamic acid residues | ADP + phosphate + coenzyme alpha-F420-3 | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Methanocaldococcus jannaschii | Q58407 | - |
- |
Purification (Comment) | Organism |
---|---|
recombinant enzyme | Methanocaldococcus jannaschii |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + coenzyme gamma-F420-2 + L-glutamate | the enzyme caps the gamma-glutamyl tail of the hydride carrier coenzyme F420. CofF specifically adds an alpha-linked glutamate to gamma-F420-2 produced by the Methanococcus jannaschii CofE protein. Coenzyme F420-2 is coenzyme F420 with two glutamic acid residue, coenzyme F420-3 is coenzyme F420 with three glutamic acid residues | Methanocaldococcus jannaschii | ADP + phosphate + coenzyme alpha-F420-3 | - |
? | |
ATP + coenzyme gamma-F420-2 + L-glutamate | CofF specifically adds an alpha-linked glutamate to gamma-F420-2 produced by the Methanococcus jannaschii CofE protein. Coenzyme F420-2 is coenzyme F420 with two glutamic acid residue, coenzyme F420-3 is coenzyme F420 with three glutamic acid residues | Methanocaldococcus jannaschii | ADP + phosphate + coenzyme alpha-F420-3 | - |
? | |
GTP + coenzyme gamma-F420-2 + L-glutamate | activity with GTP is 25% of the activity with ATP at 5 mM. CofF specifically adds an alpha-linked glutamate to gamma-F420-2 produced by the Methanococcus jannaschii CofE protein. Coenzyme F420-2 is coenzyme F420 with two glutamic acid residue, coenzyme F420-3 is coenzyme F420 with three glutamic acid residues | Methanocaldococcus jannaschii | GDP + phosphate + coenzyme alpha-F420-3 | - |
? | |
additional information | the phosphonate nucleotide analogs alpha,beta-CH2-ATP and beta,gamma-CH2-ATP support no ligase activity at concentrations of 5 mM. None of the following amino acids or analogs support ligase activity at 10-mM concentrations: D-glutamate, beta-glutamate, L-aspartate, L-glutamine, L-alpha-aminoadipate, or D,L-2-amino-4-phosphono-butyrate | Methanocaldococcus jannaschii | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
monomer | 1 * 35000, SDS-PAGE | Methanocaldococcus jannaschii |
monomer | 1 * 33278, calculated from sequence | Methanocaldococcus jannaschii |
Synonyms | Comment | Organism |
---|---|---|
CofF | - |
Methanocaldococcus jannaschii |
CofF protein | - |
Methanocaldococcus jannaschii |
gamma-F420-2:alpha-L-glutamate ligase | - |
Methanocaldococcus jannaschii |
MJ1001 | - |
Methanocaldococcus jannaschii |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
50 | - |
assay at | Methanocaldococcus jannaschii |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
additional information | - |
the heterologously expressed protein is thermostable | Methanocaldococcus jannaschii |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
8.5 | - |
assay at | Methanocaldococcus jannaschii |