P-Glucuronidase has been purified from mouse kidneys previously induced by gonadotrophin to a specific enzyme activity 15 times higher than the non-induced kidney. The purification procedure includes ultrasonication to solubilize the enzyme, acid and ammonium sulfate precipitations, gel filtration in Sephadex G-200, DEAE-ion exchange chromatography, and isoelectric focusing. The resulting produ...

The traditional Krebs procedure (1) for preparing yeast glyceraldehyde 3-phosphate dehydrogenasc has many advantages, but it also has some serious disadvantages. The procedure requires long periods of waiting during the first few steps of making the crude extract, and is llot reproducible in the quality of the enzyme obtained. Lazarus et al. (2) have shown that proteolytic enzymes survive the t...

Low cost agro-waste was used as adsorption support for single-step purification of endoglucanase from the culture filtrate of A. fumigatus ABK-9. Among various agro-waste substrates, 1% NaOH pretreated rice bran was proved to be the best for adsorbing about 74.8 and 71.1% of endoglucanase at 4 degrees C and 10 degrees C respectively. Langmuir type adsorption isotherm at 4 degrees C showed maxim...

A Ca2+-activatable cyclic nucleotide phosphodiesterase from bovine heart can be eluted from a DEAE-cellulose column either in the free form by buffers containing 0.1 mM ethylene glycol bis(beta-aminoethyl ether)N-N,N'N'-tetraacetic acid (EGTA) or as a complex of the enzyme with its protein modulator by buffers containing 0.01 mM CaCl2. A purification procedure based primarily on the significant...

P-Glucuronidase has been purified from mouse kidneys previously induced by gonadotrophin to a specific enzyme activity 15 times higher than the non-induced kidney. The purification procedure includes ultrasonication to solubilize the enzyme, acid and ammonium sulfate precipitations, gel filtration in Sephadex G-200, DEAE-ion exchange chromatography, and isoelectric focusing. The resulting produ...

BACKGROUND & OBJECTIVE Treatment of thromboembolic vascular disease has relied on anticoagulants. However, recognition that lysis of preformed fibrin could be accomplished in vivo by a process involving the conversion of inactive plasminogen to active plasmin enzyme led to an alternative enzyme-based approach. The drugs used for this therapy are called the fibrinolytic enzymes. In this study we...

Background: Alkaline phosphatase (ALP), (EC 3.1.3.1) is a hydrolase enzyme responsible for removing phosphate groups from various molecules in the body. In humans, ALPis present in all tissues such as liver, bile duct, kidney, bone, and the placenta which detection of its activity is so useful in molecular biology. Pregnancy is associated with normal physiological changes that assist fetal surv...

This paper presents the first purification of the branched chain aminotransferase (EC 2.6.1.42) from rat heart mitochondria. The enzyme has been purified from the 100,000 x g supernatant obtained after sonication and ultracentrifugation of rat heart mitochondria. A combination of open column chromatography, high pressure liquid chromatography (HPLC), and discontinuous polyacrylamide disc gel el...

In spite of an abundant literature (1-15) indicating that phosphofructokinasel plays a key role in the regulation of carbohydrate metabolism, few attempts have been made to purify the enzyme (4, 17, 18) since the subject of P-fructokinase was last reviewed (19). The apparent instability of the enzyme makes purification difficult, and a number of suggestions have been offered to explain this pro...