Alkaline phosphatase. I. Comparison of the physical and chemical properties of enzyme preparations from mammalian cell cultures, various animal tissues, and Escherichia coli

Rody P. Cox, Martin J. Griffin

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Abstract

Some of the chemical and physical properties of alkaline phosphatase preparations derived from mammalian tissues, cell cultures, and E. coli have been compared. A number of chemical and physical properties of the various enzyme preparations are similar, such as the concentration of cysteine and histidine that inhibits alkaline phosphatase activity, and the phosphotransferase activity of different enzyme preparations. Other properties of the various alkaline phosphatases are markedly different, such as heat stability at 56 °, electrophoretic mobility, and the concentrations of Zn ions, L-phenylalanine, and L-tryptophan required to inhibit enzyme activity by 50%. These differences provide a means of distinguishing between alkaline phosphatases from different tissues and different species. Some of the physical and chemical characteristics of these enzymes appear to be related to, or coincidently associated with the mechanisms of enzyme regulation observed in cell cultures and in vivo.

Original languageEnglish (US)
Pages (from-to)552-562
Number of pages11
JournalArchives of Biochemistry and Biophysics
Volume122
Issue number3
StatePublished - Dec 1967

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Animal cell culture
Chemical properties
Escherichia coli
Alkaline Phosphatase
Cell Culture Techniques
Physical properties
Tissue
Enzymes
Tissue culture
Electrophoretic mobility
Enzyme activity
Phenylalanine
Cell culture
Histidine
Tryptophan
Cysteine
Phosphotransferases
Ions
Hot Temperature

ASJC Scopus subject areas

  • Molecular Biology
  • Biophysics
  • Biochemistry

Cite this

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