Biotechnology Letters

, Volume 15, Issue 11, pp 1095–1100

Molecular cloning and functional expression of a Talaromyces emersonii derived alpha-amylase encoding genetic determinant in a human cell line

  • L. Bunni
  • T. J. Hackett
  • L. McHale
  • G. Flynn
  • A. P. McHale
Article
  • 42 Downloads

Summary

A cDNA fragment encoding a Talaromyces emersonii acid stable alpha-amylase has been cloned into a mammalian cell expression vector system. When human HeLa cells were transformed with this DNA, functional enzyme could be detected in extracellular media and cell lysates derived from stable transformants. Expression of the T. emersonii derived cDNA was verified by northern dot blotting hybridisation analysis of mRNA extracted from transformants, using the labelled amylase encoding cDNA determinant as a probe. Results obtained suggest that expression of the fungus derived alpha-amylase in the transformed HeLa cells is glucocorticoid dependent.

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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • L. Bunni
    • 1
    • 2
  • T. J. Hackett
    • 1
    • 3
  • L. McHale
    • 1
  • G. Flynn
    • 1
  • A. P. McHale
    • 1
  1. 1.Dept of Biological and Biomedical SciencesUniversity of UlsterColeraine, Co.Northern Ireland
  2. 2.Dept of MicrobiologyTrinity CollegeDublinIreland
  3. 3.Arthur Anderson ConsultingLondonUK

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