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  • Title: Purification of multiple forms of adenosine deaminase from rabbit intestine.
    Author: Piggott CO, Brady TG.
    Journal: Biochim Biophys Acta; 1976 Apr 08; 429(2):600-7. PubMed ID: 4139.
    Abstract:
    Two forms of adenosine deaminase (adenosine aminohydrolase, EC 3.5.4.4), differing in molecular size, have been purified and obtained in homogeneous form from rabbit intestine. The purification procedures involved extraction with acetate buffer, pH 5.5, precipitation and fractional reextraction with (NH4)2SO4, ion-exchange chromatography on DEAE-cellulose and gel filtration on Sephadex G-75 and Sephadex G-200. Gel filtrations analysis gave molecular weight estimates of 265 000 and 32 000 for the large and small deaminases respectively. The two enzymes forms had similar pH optima and pH stability ranges.
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