QSYP peptide sequence is selected from phage display libraries by bovine IgG contaminants in monoclonal antibody preparations.

Abstract:

:A consensus peptide sequence, QSYP, appears as an artifact during the mapping of monoclonal antibodies (MAbs) using a random peptide phage display library. Phage bearing this QSYP sequence were independently selected by four different laboratories screening separate MAb preparations with the same phage library. In each case, the QSYP sequence was selected in addition to a consensus sequence specific to the MAb. Phage that displayed the QSYP sequence were not bound by the MAb of interest, but rather bound to bovine IgG derived from the FBS present in the hybridoma growth media. The implications of this finding for the interpretation of phage library screening results and possible methods for the removal of bovine IgG from MAb preparations are discussed.

journal_name

Biotechniques

journal_title

BioTechniques

authors

Jacobs JM,Bailey BW,Burritt JB,Morrison SG,Morrison RP,Dratz EA,Jesaitis AJ,Teintze M

doi

10.2144/03341rr04

subject

Has Abstract

pub_date

2003-01-01 00:00:00

pages

132-4, 137-41

issue

1

eissn

0736-6205

issn

1940-9818

journal_volume

34

pub_type

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