Optimization of yeast surface-displayed cDNA library screening for low abundance targets.

Abstract:

:The yeast surface-displayed cDNA library has been used to identify unknown antigens. However, when unknown target antigens show moderate-to-low abundance, some modifications are needed in the screening process. In this study, a directional random-primed cDNA library was used to increase the number of candidates for the unknown antigen. To avoid the loss of target yeast clones that express proteins at a low frequency in the cDNA library, a comprehensive monitoring system based on magnetic-activated cell sorting, fluorescence-activated cell sorting, and immunofluorescence was established, and a small number of target yeast cells was successfully enriched. These results showed that our optimized method has potential application for identifying rare unknown antigens of the human monoclonal antibody.

journal_name

J Microbiol Biotechnol

authors

Kim JY,Kim HK,Jang HJ,Kim EK,Kim MK

doi

10.4014/jmb.1409.09079

subject

Has Abstract

pub_date

2015-04-01 00:00:00

pages

547-53

issue

4

eissn

1017-7825

issn

1738-8872

pii

10.4014/jmb.1409.09079

journal_volume

25

pub_type

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