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Multiplex Protein Detection with DNA Readout Via Mass Spectrometry

Overview
Journal N Biotechnol
Publisher Elsevier
Date 2012 Dec 4
PMID 23201185
Citations 1
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Abstract

Multiplex protein quantification has been constrained by issues of assay specificity, sensitivity and throughput. This research presents a novel approach that overcomes these limitations using antibody-oligonucleotide conjugates for immuno-polymerase chain reaction (immuno-PCR) or proximity ligation, coupled with competitive PCR and MALDI-TOF mass spectrometry. Employing these combinations of technologies, we demonstrate multiplex detection and quantification of up to eight proteins, spanning wide dynamic ranges from femtomolar concentrations, using only microliter sample volumes.

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