A sandwiched-culture technique for evaluation of heterologous protein production in a filamentous fungus.

Abstract:

:Aspergillus niger is known for its efficient excretion machinery. However, problems have often arisen in obtaining high amounts of heterologous proteins in the culture medium. Here we present a quick method using sandwiched colonies to evaluate transgenic strains for secretion of heterologous proteins. Expressing the ABH1 hydrophobin of Agaricus bisporus in A. niger, we showed that low production levels of the heterologous protein are probably due to extracellular proteolytic degradation of the protein.

journal_name

Appl Environ Microbiol

authors

Asgeirsdóttir SA,Scholtmeijer K,Wessels JG

doi

10.1128/AEM.65.5.2250-2252.1999

keywords:

subject

Has Abstract

pub_date

1999-05-01 00:00:00

pages

2250-2

issue

5

eissn

0099-2240

issn

1098-5336

journal_volume

65

pub_type

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