Cognate peptide-receptor ligand mapping by directed phage display

<p>Abstract</p> <p>Background</p> <p>A rapid phage display method for the elucidation of cognate peptide specific ligand for receptors is described. The approach may be readily integrated into the interface of genomic and proteomic studies to identify biologically relev...

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Main Authors: Stratmann Thomas, Kang Angray S
Format: Article
Language:English
Published: BMC 2005-06-01
Series:Proteome Science
Online Access:http://www.proteomesci.com/content/3/1/7
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author Stratmann Thomas
Kang Angray S
author_facet Stratmann Thomas
Kang Angray S
author_sort Stratmann Thomas
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>A rapid phage display method for the elucidation of cognate peptide specific ligand for receptors is described. The approach may be readily integrated into the interface of genomic and proteomic studies to identify biologically relevant ligands.</p> <p>Methods</p> <p>A gene fragment library from influenza coat protein haemagglutinin (HA) gene was constructed by treating HA cDNA with DNAse I to create 50 – 100 bp fragments. These fragments were cloned into plasmid pORFES IV and in-frame inserts were selected. These in-frame fragment inserts were subsequently cloned into a filamentous phage display vector JC-M13-88 for surface display as fusions to a synthetic copy of gene <it>VIII</it>. Two well characterized antibodies, mAb 12CA5 and pAb 07431, directed against distinct known regions of HA were used to pan the library.</p> <p>Results</p> <p>Two linear epitopes, HA peptide 112 – 126 and 162–173, recognized by mAb 12CA5 and pAb 07431, respectively, were identified as the cognate epitopes.</p> <p>Conclusion</p> <p>This approach is a useful alternative to conventional methods such as screening of overlapping synthetic peptide libraries or gene fragment expression libraries when searching for precise peptide protein interactions, and may be applied to functional proteomics.</p>
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spelling doaj.art-a46f537807a545e69a3ee663238a456d2022-12-21T23:20:07ZengBMCProteome Science1477-59562005-06-0131710.1186/1477-5956-3-7Cognate peptide-receptor ligand mapping by directed phage displayStratmann ThomasKang Angray S<p>Abstract</p> <p>Background</p> <p>A rapid phage display method for the elucidation of cognate peptide specific ligand for receptors is described. The approach may be readily integrated into the interface of genomic and proteomic studies to identify biologically relevant ligands.</p> <p>Methods</p> <p>A gene fragment library from influenza coat protein haemagglutinin (HA) gene was constructed by treating HA cDNA with DNAse I to create 50 – 100 bp fragments. These fragments were cloned into plasmid pORFES IV and in-frame inserts were selected. These in-frame fragment inserts were subsequently cloned into a filamentous phage display vector JC-M13-88 for surface display as fusions to a synthetic copy of gene <it>VIII</it>. Two well characterized antibodies, mAb 12CA5 and pAb 07431, directed against distinct known regions of HA were used to pan the library.</p> <p>Results</p> <p>Two linear epitopes, HA peptide 112 – 126 and 162–173, recognized by mAb 12CA5 and pAb 07431, respectively, were identified as the cognate epitopes.</p> <p>Conclusion</p> <p>This approach is a useful alternative to conventional methods such as screening of overlapping synthetic peptide libraries or gene fragment expression libraries when searching for precise peptide protein interactions, and may be applied to functional proteomics.</p>http://www.proteomesci.com/content/3/1/7
spellingShingle Stratmann Thomas
Kang Angray S
Cognate peptide-receptor ligand mapping by directed phage display
Proteome Science
title Cognate peptide-receptor ligand mapping by directed phage display
title_full Cognate peptide-receptor ligand mapping by directed phage display
title_fullStr Cognate peptide-receptor ligand mapping by directed phage display
title_full_unstemmed Cognate peptide-receptor ligand mapping by directed phage display
title_short Cognate peptide-receptor ligand mapping by directed phage display
title_sort cognate peptide receptor ligand mapping by directed phage display
url http://www.proteomesci.com/content/3/1/7
work_keys_str_mv AT stratmannthomas cognatepeptidereceptorligandmappingbydirectedphagedisplay
AT kangangrays cognatepeptidereceptorligandmappingbydirectedphagedisplay