Title : Selective extraction of alkaline phosphatase and 5'-nucleotidase from milk fat globule membranes by a single phase n-butanol procedure.

Pub. Date : 1993 Aug

PMID : 8361957






4 Functional Relationships(s)
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1 Selective extraction of alkaline phosphatase and 5"-nucleotidase from milk fat globule membranes by a single phase n-butanol procedure. 1-Butanol 5'-nucleotidase Bos taurus
2 For 5"-nucleotidase, higher n-butanol concentrations lead to loss of activity, while lower concentrations were ineffective in extracting the enzyme. 1-Butanol 5'-nucleotidase Bos taurus
3 When extractions were performed at 0 degrees C, similar yields were obtained for alkaline phosphatase extraction with 8% (v/v) n-butanol, but 5"-nucleotidase extraction required 10% (v/v) n-butanol for similar yields. 1-Butanol 5'-nucleotidase Bos taurus
4 However, 5"-nucleotidase was less susceptible to denaturation during extraction at 0 degrees C. The Km values and substrate specificities for both alkaline phosphatase and 5"-nucleotidase were unchanged by extraction with 8% (v/v) n-butanol. 1-Butanol 5'-nucleotidase Bos taurus