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Related Experiment Videos

Purification of transforming growth factor type e.

P G Parnell1, J Wunderlich, B Carter

  • 1Department of Veterinary Pathology, College of Veterinary Medicine, University of Georgia, Athens 30602.

Journal of Cellular Biochemistry
|February 1, 1990
PubMed
Summary

Transforming growth factor type e (TGFe), a 22 kDa protein, stimulates cell proliferation. This study details its purification to over 90% homogeneity using multiple chromatographic techniques.

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Biology

Background:

  • Transforming growth factor type e (TGFe) is a polypeptide known to stimulate epithelial and mesenchymal cell proliferation.
  • Its stability to heat and acid suggests unique biochemical properties.

Purpose of the Study:

  • To purify Transforming growth factor type e (TGFe) to homogeneity.
  • To characterize the purification process for this growth factor.

Main Methods:

  • Acid-ethanol extraction of bovine kidney tissue.
  • Purification using ion-exchange, molecular sieve, and affinity chromatography.
  • Final purification via reverse-phase HPLC and SDS-PAGE electro-elution.

Main Results:

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  • Transforming growth factor type e (TGFe) was purified to greater than 90% purity.
  • A multi-step chromatographic approach was successfully employed.
  • The protein exhibits a molecular weight of approximately 22,000 Da.

    • Conclusions:

    • Transforming growth factor type e (TGFe) can be purified to high homogeneity using a combination of chromatographic methods.
    • The established purification protocol provides a reliable source of TGFe for further biological studies.