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DIA Quantitative Proteomics Service

In recent years, a new mass spectrometry data acquisition method, data-independent acquisition (DIA) mode, has been developed. It is an improved technique to the traditional shotgun analysis (data-dependent acquisition), which enables unbiased MS analysis of all signals in a complex sample, resulting in higher peptide coverage. The DIA scan mode divides the entire full scan range of the mass spectrum into several windows, and selects, fragments, and detects all ions in each window at high speed and cyclically, so as to obtain fragment information of all ions in the sample without omission and difference.

DIA workflowDIA workflow (LCGC North America.Volume 35, Issue 10, pg 756–759)

Our DIA Quantitative Proteomics Service

Our DIA quantitative proteomics service uses the AB SCIEX Triple-TOF 5600 plus high-resolution mass spectrometry system, which has a high resolution, accurate mass number stability, high sensitivity and high scan speed. The main DIA technologies we use are SWATH-MS, SRM™, MSX-DIA, PCT-DIA and GPF-DIA. All you need to do is send us your samples and we will take care of the following, including protein extraction, proteolysis, peptide separation, mass spectrometry analysis, raw mass spectrometry data analysis, and bioinformatics analysis.

Advantages of Orbitrap-based DIA technology:

(1) High qualitative and quantitative accuracy, typically acquired at 35,000-60,000 resolution.

(2) Higher data throughput with a stable mass axis at 1 ppm over time, without internal standard correction or frequent external standard correction.

(3) Ultra-high sensitivity and high spectral quality, amol (10-18 mol) level.

(4) High throughput, capable of monitoring all target proteins simultaneously.

(5) Ultra-fast scanning speed, 12-20 Hz.

(6) Dynamic range and linear range of more than 5 orders of magnitude.

(7) Unique msxDIA to further improve selectivity.



Data Analysis

Standard data analysis content
Statistical analysis of identification resultsSample protein and peptide identification histogram, PCA distribution map, quantitative variance statistical analysis
Bioinformatics analysisDifferential up- and down-regulated protein KEGG map, KEGG pathway function attribution, etc.
GO and G0 enrichment, KEGG and KEGG enrichment analysis, PPI interaction network and module analysis
Advanced data analysis content
Biomarker screeningIntegrated machine learning, LASSO regression analysis, marker panels, ROC analysis
Molecular typing analysisUnsupervised cluster typing analysis, proteome + transcriptome analysis, kinase analysis
Joint analysis of clinical characterization and omics results
Disease-related functional module analysisWGCNA co-expression analysis
Survival curve analysisClinical typing and survival curve analysis

Sample Requirements:

Detection Platforms:

Detection Platforms


Clinical and Pharmacology Applications:

Agriculture and Forestry Applications:


* For Research Use Only. Not for use in the treatment or diagnosis of disease.

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Specializing in proteomics, Creative Proteomics offers cutting-edge protein analysis services. Our distinctive approach revolves around harnessing the power of DIA technology, enabling us to deliver precise and comprehensive insights that drive advancements in research and industry.

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