MtoZ Biolabs launches 4D-Phosphoproteomics Service to integrate multidimensional separation with high-resolution LC-MS/MS for deep phosphorylation site coverage in complex samples, improving signal resolution, resilience, and verifiable results for global research and early drug discovery programs.
Why Choose 4D Proteomics
4D Proteomics introduces ion mobility as an additional separation dimension on top of LC-MS/MS acquisition, generating a 4D analytical space of retention time (RT) + m/z + intensity + mobility. This enables superior discrimination and accurate reading of dense, co-eluting signals. In phosphorylation studies, 4D physically separates structurally similar peptides that share retention times but differ in modification states, reducing matrix interference and supporting more stable site localization and clearer regulatory signal trending. Key benefits include:
- Increased detection depth of low-abundance phosphopeptides
- Enhanced differentiation of labile phosphorylated fragments and expanded modification site coverage
- More robust signal comparison across experimental groups, improving repeat-read reliability
- Highly structured datasets and interpretable, verifiable phosphorylation evidence supporting pathway and signaling node-level mechanistic research
Meier, F. et al. Mol Cell Proteomics. 2018.
Figure 1. 4D Proteomics
4D-proteomics allows researchers to not only read more signals, but also verify them with higher confidence, making it well-suited for mechanistic screening and project-scale phosphorylation signal interpretation.
4D-Phosphoproteomics Service at MtoZ Biolabs
The 4D-phosphoproteomics service releases and profiles the core phosphorylation signaling states within a proteome, producing standardized, residue-level localized site lists and aligned multi-group quantitative comparison matrices. MtoZ Biolabs provides:
- Phosphopeptide enrichment and identification
- Phosphorylation site mapping
- Multi-group differential phosphorylation comparison
- Phosphopeptide quantification
- Customized project-tailored analytical plans
Workflow of 4D-Phosphoproteomics Service
Why Choose MtoZ Biolabs
1. Advanced 4D LC-MS/MS Platform
Workflows incorporate ion mobility separation for deeper phosphosite read coverage and higher localization reliability in challenging matrices.
2. Experienced Phosphorylation-Focused Team
Experts with extensive backgrounds in phosphoproteomic enrichment, screening, and site-level localization across cell, tissue, recombinant, and fusion protein samples.
3. Transparent and Straightforward Pricing
One-time fee model with full cost clarity and no hidden charges.
Applications of 4D-Phosphoproteomics Service
- Plant development and stress-response signaling studies
- Host-pathogen signaling research in infectious disease models
- Aging, regeneration, and degenerative condition pathway studies
- Cancer signaling mechanism interpretation
- Immune cell activation and inflammatory response profiling
Sample Submission Guidelines
For more information, please refer to Sample Submission Guidelines for Proteomics and Sample Submission Guidelines for Metabolomics.
Deliverables
- Mass spectrometry raw data files
- Localized phosphorylation site tables and multi-group quantitative matrices
- Summary report including methods, QC, and key findings
- Figures and spectra plots
- Optional templates for publication or project reports
FAQs
Q1: What types of samples are suitable?
MtoZ Biolabs accepts diverse research samples for 4D-phosphoproteomic profiling, including cells, tissues, biofluids, purified proteins, recombinants, and fusion proteins. Samples must be clarified, low-salt, and detergent-restricted for stable analysis.
Q2: What is the service's general workflow?
Q3: Which data formats are provided?
Deliverables include:
- MS raw data
- site-localized modification tables and group-comparison matrices (XLSX or CSV)
- QC and key finding summaries (PDF)
- image or spectra plots (TIFF/PNG)
Additional formats can be supplied upon request.
Q4: How should samples be prepared?
MtoZ Biolabs recommends:
- Using clarified lysates or purified proteins without particulates
- Avoiding excessive salts or heavy detergents
- Storing at −80 °C in sealed, low-adsorption containers, shipping on dry ice
- Providing metadata on sample source, buffer composition, processing history, and study objective
Guidance documents and presubmission consultation are available before shipment.
Start Your Project with MtoZ Biolabs
Phosphorylation regulates protein function and cellular responses. MtoZ Biolabs’ 4D-phosphoproteomics service provides reliable and traceable site lists, trending evidence, and structured datasets. Contact MtoZ Biolabs to initiate your project and accelerate clearer mechanistic insights.