𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Continuous colorimetric monitoring of the fructose bisphosphate aldolase reaction

✍ Scribed by Philmore Robertson Jr.; Irwin Fridovich


Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
223 KB
Volume
108
Category
Article
ISSN
0003-2697

No coin nor oath required. For personal study only.

✦ Synopsis


A simple method for continuous spectrophotometric assay of fructose-1,6-bisphosphate aldolase is described. The method is based on the reactivity of the product triose phosphates with cyanide to form compounds capable of the reduction of cytochrome c. At the concentrations employed, cyanide, acting catalytically, reacts with the enediol tautomer of the triose phosphates to generate the reductants, which reduce cytochrome c causing increased absorbance at 550 nm. The rate of increase in the rate of appearance of SO-nm absorbance is directly proportional to the concentration of aldolase present. The procedure is particularly useful for Class I aldolases, since the assay must be run under mildly alkaline conditions.


📜 SIMILAR VOLUMES


A selective reaction of fructose bisphos
✍ Andrew G. Gehring; John L. Ezzell; Herbert G. Lebherz 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 441 KB

## Abstract The present work describes the selective covalent modification of fructose bisphosphate aldolase in crude extracts of chicken breast muscle by fluorescein 5′‐isothiocyanate (5′‐FITC) at pH 7.0 and 35°C. The modification was observed after 1 min while no other major soluble protein was l