The new MS3 TMT® (three-stage MS Tandem Mass Tag) mass spectrometry workflow yields significantly enhanced quantitative performance and results, and is available only through PS Biomarker ServicesTM.
| Applications | Sample Types | Species | Analysis Method |
| Drug Discovery |
All |
All | TMT®-Orbitrap Velos Pro Mass Spectrometry |
| Clinical Analysis; early disease detection/prognostic |
All |
All | TMT®-Orbitrap Velos Pro Mass Spectrometry |


The new and exclusive MS3 TMT® workflow is a powerful augmentation of the widely used Tandem Mass Tag isobaric labeling technology developed by Proteome Sciences. The workflow is offered as an option for all assays and applications available through PS Biomarker ServicesTM, and can be applied to any multiplexed mass spectrometry assay which utilizes Tandem Mass Tag (TMT) isobaric labeling
Use of triple-stage mass spectrometry (MS3) has been shown to overcome the inherent interference of more commonly used two-stage (MS2) workflows when isobaric labeling strategies are used with complex samples to enable multiplexed analyte analysis. Incorporating a third isolation and fragmentation step of the TMT® labeled protein samples, the new workflow all but eliminates the ratio distortion interference effect and enables far greater accuracy of reporting quantitative results.
The new MS3 TMT® protocols can be used across the board for all multiplexed mass spectrometry assays employing TMT® isobaric labels. The workflow is anticipated to be equally useful as both a discovery tool and as a method used in clinical research and diagnostic applications:
Drug Discovery – evaluate efficiency of new chemical entities & identify off-target effects early
Clinical Research – understand more about disease biology and identify potential drugable targets
Diagnostics – monitor disease stage, progression and response to treatment
Contact us to learn more about Proteome Sciences’ proprietary MS3 TMT® workflow or to arrange a consultation with our scientists for an optimized or customized solution to your Biomarker Discovery project.
To Download the MS3 TMT® Mass Spectrometry Workflow Product Brochure- Click Here