WebNov 11, 2003 · Determination of Aconitase Protein Levels and Activity in the Tomato Genotypes Having demonstrated that leaves of the Aco-1 plants exhibited lower … WebSomething that is curious about aconitase is the fact that it uses iron as the inorganic substituent. Mutanogenic studies on aconitase have found substituting the iron ions with …
Frataxin Acts as an Iron Chaperone Protein to Modulate …
WebJun 1, 2015 · The effect of pH on aconitase activity was studied in 100 mM tris–HCl buffer containing 40 mM citrate or 4 mM d, l-isocitrate. Determination of K i was performed by plotting the graphs of dependence of 1/v from the concentration of inhibitor [i] at two fixed concentrations of substrate (citrate) (Dixon, 1953). WebJun 23, 2024 · Prior studies indicated that H129 is the only histidine ligand involved in the control of the iron donation capability of YtfE, as its replacement for a leucine residue produces a protein unable to restore the aconitase activity . Interestingly, H129 forms an H-bond with E159 (H129 Nδ1 …E159 Oε1 2.66 Å). hierarchy of control for risk assessment
Biochemical elucidation of citrate accumulation in
WebJul 9, 2004 · Aconitase, a Krebs-cycle enzyme that converts citrate to isocitrate, belongs to the family of iron-sulfur–containing dehydratases whose activities depend on an intact cubane [4Fe-4S] 2+ cluster (1, 2).The purified enzyme is highly susceptible to oxidant-induced inactivation due to release of the solvent-exposed Fe-α and formation of a [3Fe … WebFor quantitative determination of aconitase enzyme activity and high-throughput screening assays for aconitase modulator. Key Features. Fast and sensitive. Linear detection range (20 µL sample): 0.5 to 100 U/L for 20 min reaction. Convenient and high-throughput. Homogeneous “mix-incubate-measure” type assay. WebDec 13, 2002 · Determination of activities of mitochondrial complexes. For complex activity measurements, samples of synaptosomes (1 mg) were incubated in 1 mL of standard medium for 20 min at 37°C with different concentrations of rotenone, antimycin, or cyanide, respectively. ... Aconitase activity was expressed as a function of the per cent … how far from antioch tn to lathrop ca