EC Number | Cloned (Comment) | Organism |
---|---|---|
4.2.1.3 | gene AcnA, overexpression of the His-tagged protein in an ASKA library, i.e. the 'a complete set of Escherichia coli K-12 ORF archive library | Escherichia coli |
4.2.1.3 | gene ACnB, overexpression of the His-tagged protein in an ASKA library | Escherichia coli |
EC Number | Metals/Ions | Comment | Organism | Structure |
---|---|---|---|---|
4.2.1.3 | Fe2+ | the iron-sulfur cluster, which constitutes the active site, is located at the interdomain boundary among the three enzyme domains, overview | Escherichia coli |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
4.2.1.3 | cis-aconitate + H2O | Escherichia coli | aconitase catalyzes a reversible isomerization of citrate into isocitrate in the Krebs cycle | isocitrate | - |
r | |
4.2.1.3 | citrate | Escherichia coli | aconitase catalyzes a reversible isomerization of citrate into isocitrate in the Krebs cycle | cis-aconitate + H2O | - |
r |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
4.2.1.3 | Escherichia coli | P25516 | AcnA; gene AcnA | - |
4.2.1.3 | Escherichia coli | P36683 | AcnB; gene AcnB | - |
EC Number | Purification (Comment) | Organism |
---|---|---|
4.2.1.3 | recombinant His-tagged AcnA by metal affinity chromatography | Escherichia coli |
4.2.1.3 | recombinant His-tagged AcnB by metal affinity chromatography | Escherichia coli |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
4.2.1.3 | cis-aconitate + H2O | - |
Escherichia coli | isocitrate | - |
r | |
4.2.1.3 | cis-aconitate + H2O | aconitase catalyzes a reversible isomerization of citrate into isocitrate in the Krebs cycle | Escherichia coli | isocitrate | - |
r | |
4.2.1.3 | citrate | - |
Escherichia coli | cis-aconitate + H2O | - |
r | |
4.2.1.3 | citrate | aconitase catalyzes a reversible isomerization of citrate into isocitrate in the Krebs cycle | Escherichia coli | cis-aconitate + H2O | - |
r | |
4.2.1.3 | additional information | the substrate binding may induce a rearrangement of their relative positions. Such a conformational change may result in the negative cooperativity | Escherichia coli | ? | - |
? |
EC Number | Subunits | Comment | Organism |
---|---|---|---|
4.2.1.3 | homodimer | structural modeling, homo-oligomerization of AcnA yields negative cooperativities in isomerization of isocitrate. In the AcnA homodimer, the intersubunit interface is composed of domains II and III. The iron-sulfur cluster, which constitutes the active site, is located at the interdomain boundary among the three domains, overview | Escherichia coli |
4.2.1.3 | homodimer | structural modeling, homo-oligomerization of AcnB yields negative cooperativities in isomerization of isocitrate. In the AcnA homodimer, the intersubunit interface is composed of domains II and III. The iron-sulfur cluster, which constitutes the active site, is located at the interdomain boundary among the three domains, overview | Escherichia coli |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
4.2.1.3 | aconitase | - |
Escherichia coli |