Abstract:
:The efficiency of both phage display in Escherichia coli and periplasmic expression of recombinant proteins may be limited by the same periplasmic folding steps. To search for E. coli factors that improve the efficiency of both procedures, a library of E. coli proteins was coexpressed in a phagemid vector that contained a poorly folding single-chain Fv antibody (scFv) fragment fused to g3p. We enriched, by panning for antigen binding, those phagemids in which the amount of displayed scFv is highest. We thus identified the periplasmic protein Skp/OmpH/HlpA as improving phage display of a wide range of scFv fragments. This occurs as a result of an increase in the amount of hybrid protein displayed on the phage. Coexpression of skp also increases the functional yield of scFv fragments when expressed by secretion to the periplasm.
journal_name
Nat Biotechnoljournal_title
Nature biotechnologyauthors
Bothmann H,Plückthun Adoi
10.1038/nbt0498-376subject
Has Abstractpub_date
1998-04-01 00:00:00pages
376-80issue
4eissn
1087-0156issn
1546-1696journal_volume
16pub_type
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