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Related Experiment Videos

Multiple forms of deoxyribonuclease I.

T H Liao

    Molecular and Cellular Biochemistry
    |January 20, 1981
    PubMed
    Summary

    This review covers DNase I purification and its multiple forms from various sources. The chemical basis of bovine pancreatic DNase I multiplicity is detailed, with evidence presented for other sources.

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    Cloning, sequencing and expression of a cDNA encoding bovine pancreatic deoxyribonuclease I in Escherichia coli: purification and characterization of the recombinant enzyme.

    Gene·1998

    Area of Science:

    • Biochemistry
    • Enzymology

    Background:

    • Deoxyribonuclease I (DNase I) is an enzyme crucial for DNA metabolism.
    • Multiple forms of DNase I have been observed, suggesting complex regulatory mechanisms or post-translational modifications.

    Purpose of the Study:

    • To review recent advancements in DNase I purification techniques.
    • To characterize the multiple forms of DNase I from diverse biological sources.
    • To elucidate the chemical basis for DNase I multiplicity, particularly in bovine pancreas.

    Main Methods:

    • Enzyme purification from various sources including bovine pancreas, ovine pancreas, and parotid glands of rodents.
    • Characterization of enzyme isoforms using biochemical and biophysical techniques.
    • Detailed chemical analysis of the multiple forms found in bovine pancreatic DNase I.

    Main Results:

    • Progress in DNase I purification from multiple sources is summarized.
    • Evidence for DNase I multiplicity is presented for ovine pancreas, bovine, mouse, and rat parotid glands, and malt.
    • The chemical basis of multiplicity in bovine pancreatic DNase I is discussed in depth.

    Conclusions:

    • DNase I exists in multiple forms across various species and tissues.
    • Understanding DNase I multiplicity is key to comprehending its biological functions.
    • Further research into the chemical basis of these isoforms can reveal novel enzymatic properties.

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