MtoZ Biolabs launches the Shotgun Plant Proteins Identification Service powered by LC-MS/MS platforms and plant-optimized sample preparation workflows, enabling comprehensive protein identification from plant tissues, cultured cells, and soluble protein extracts. It is designed for applications such as functional protein investigation, signaling pathway analysis, stress-response studies, and plant proteome resource development. By delivering reliable protein identities and essential annotation data, the service helps research and industry clients advance plant biology studies efficiently.

The Principle of Shotgun Proteomics

Shotgun proteomics is based on a bottom-up analytical strategy in which complex protein mixtures are digested (e.g., with trypsin) into peptides, separated by liquid chromatography, and analyzed by high-resolution tandem mass spectrometry to obtain MS/MS fragmentation data. These spectra are matched against theoretical peptide sequences in protein databases to determine protein identities and compositions. Key characteristics include:

• High Throughput: Capable of identifying thousands of proteins simultaneously, ideal for complex plant matrices.
• Compatibility with Complex Samples: Able to obtain sufficient peptide information even in samples containing polysaccharides, polyphenols, pigments, and other plant-specific interfering substances.
• Antibody-Independent Detection: Does not require specific antibodies, unlike immunological methods.

Chugunova, A. et al. J Proteome Res. 2018.

Figure 1. Shotgun Proteomics

Because shotgun proteomics analyzes peptides rather than intact proteins, it effectively overcomes challenges such as poor protein solubility, large molecular weight variation, and complex plant sample matrices. This approach enables unbiased, high-throughput identification of thousands of proteins and serves as a powerful method for studying plant proteome structure, function, and regulatory networks.

Shotgun Plant Proteins Identification Service at MtoZ Biolabs

MtoZ Biolabs provides high-efficiency and reliable Shotgun proteomics solutions tailored for plant research. Our service enables large-scale protein identification from complex plant samples and delivers clear comparative insights across different tissues, treatment conditions, or developmental stages. For targeted objectives, we offer protein identity confirmation, preliminary analysis of peptide components derived from protein complexes, and detection of key regulatory modifications. Powered by high-resolution mass spectrometry platforms and plant-optimized sample preparation workflows, MtoZ Biolabs delivers accurate and actionable data that support breeding innovation, functional studies, and diverse agricultural applications.

During project execution, MtoZ Biolabs selects appropriate extraction strategies and LC–MS/MS conditions according to plant species, tissue characteristics (e.g., leaves, roots, seeds), and research goals to ensure reliable and application-oriented results.

Workflow of Shotgun Plant Proteins Identification Service

Why Choose MtoZ Biolabs?

1. Advanced Mass Spectrometry Platforms for Deep Coverage

Using Thermo Q Exactive HF, Orbitrap Fusion Lumos, and other high-resolution mass spectrometers, we achieve stable fragmentation quality and superior depth in complex plant proteomes.

2. Plant-Compatible Protein Extraction Workflows

Optimized lysis and cleanup strategies overcome interference from polysaccharides, pigments, and phenolic compounds, improving extraction efficiency and MS signal quality.

3. Optimized Shotgun Analysis Strategies

Tailored gradients, acquisition modes, and fragmentation settings enhance proteome coverage and database matching efficiency.

4. Experienced Plant Proteomics Team

Our team has extensive experience in plant proteomics, stress-response studies, and signaling pathway analysis, enabling customized parameter adjustment based on research objectives.

5. Transparent One-Time Pricing

Clear pricing with no hidden fees, supporting grant applications and project budgeting.

Applications of Shotgun Plant Proteins Identification Service

1. Plant Growth and Developmental Biology

Identification of proteins related to tissue differentiation, photosynthesis, and nutrient absorption.

2. Plant Stress Responses and Signaling Pathways

Discovery of key regulatory proteins involved in drought, salinity, pathogen infection, and other stresses.

3. Plant Metabolic Network Analysis

Supports metabolic pathway reconstruction when integrated with metabolomics datasets.

4. Plant Proteome Resource Building

Generates or expands species-specific baseline proteome datasets.

5. Agriculture and Plant-Based Industries

Supports functional protein screening, crop improvement, quality assessment, and marker validation.

Deliverables

• Raw LC–MS/MS data files

• Protein identification tables (with basic annotations)

• Representative chromatograms and spectra

• Method overview and acquisition parameters

Start Your Project with MtoZ Biolabs

If your research involves plant proteomics or requires systematic identification of complex plant proteins, contact MtoZ Biolabs. Our professional mass spectrometry capabilities and standardized workflows will provide high-quality data support for your project.

FAQs

Q1: What types of samples are suitable?

Shotgun Plant Proteins Identification Service is compatible with a wide range of plant samples, including leaves, roots, stems, seeds, fruits, plant cell lines or suspension cells, and crude or partially purified protein extracts. If you are unsure whether your sample is suitable, MtoZ Biolabs can provide preliminary evaluation and preparation advice.

Q2: What is the service's general workflow?

Q3: What data formats are provided?

MtoZ Biolabs delivers analysis results in multiple standardized formats to ensure compatibility with common bioinformatics and visualization tools. Typical deliverables include:

• Raw data files from high-resolution LC-MS/MS platforms

• Processed data tables (CSV or Excel) containing identified proteins, peptides, scores, and annotations

• Summary reports in PDF format, including methods, QC results, and key findings

• High-resolution spectra or chromatograms (TIFF or PNG files)

Additional formats can be provided upon request for research, data integration, or publication needs.

Q4: How should I prepare my samples?

To ensure accurate and reproducible results, MtoZ Biolabs recommends preparing samples as follows:

• Sample Type: A wide range of plant-related samples is acceptable, including plant tissues (leaves, roots, stems, seeds, fruits), plant cell pellets or suspension cultures, crude protein extracts, and partially purified protein fractions.
• Sample Purity: Samples should be free of particulates, strong pigments, high concentrations of salts, harsh detergents, or excessive organic solvents, as these may interfere with chromatographic separation or MS ionization. If special buffers are used, please provide detailed composition information.
• Sample Amount: For plant tissues or cultured cells, at least 100 mg (wet weight) is recommended. Protein solutions should be provided in sufficient volume to allow complete analysis and potential repeat measurements.
• Storage and Shipping: Plant tissues and cells should be snap-frozen in liquid nitrogen immediately after collection and stored at −80°C. Protein solutions should be kept at low temperature and protected from repeated freeze-thaw cycles. During shipment, samples must be packed with dry ice in sealed, leak-proof containers to maintain integrity.
• Accompanying Information: Please include details such as species name, tissue or cell type, sample preparation method, buffer composition, and the intended scope of analysis (e.g., global proteome profiling, differential protein analysis).

For more information, please refer to Sample Submission Guidelines for Proteomics and Sample Submission Guidelines for Metabolomics.