Targeted Acetylation Site Analysis Service

MtoZ Biolabs offers specialized Targeted Acetylation Site Analysis Service for precise identification, localization, and quantification of acetylation sites on client-defined protein. Acetylation is a critical post-translational modification that regulates protein function, stability, localization, and interaction networks. Site-specific acetylation analysis is essential for studying the role of acetylation in cellular processes, signal transduction, and disease mechanisms.

 

Using advanced LC-MS/MS platforms, MtoZ Biolabs delivers high-resolution, site-level characterization of acetylated residues. Our service enables precise identification of acetylation sites and provides detailed quantitative information on modification levels, helping researchers understand how acetylation modulates protein behavior in health and disease.

 

Overview

Acetylation site analysis focuses on the identification of acetylated residues on proteins and the quantification of their modification levels. Unlike global acetylation profiling, which provides an overview of acetylation patterns, site-specific analysis identifies which residues are acetylated, how frequently they are modified, and how these modifications affect protein function.

Acetylation typically occurs on lysine residues and plays a crucial role in regulating protein activity, protein-protein interactions, chromatin remodeling, and cellular signaling. For example:

Histone H3 (Lys9 and Lys14) acetylation promotes chromatin relaxation and transcriptional activation.

p53 (Lys382) acetylation enhances its stability and transcriptional activity in DNA damage response.

α-Tubulin (Lys40) acetylation is involved in microtubule stability and cell motility.

 

By identifying and quantifying acetylation on specific residues, researchers can link acetylation events to functional consequences, such as gene expression changes, protein activation, or cellular stress response.

 



Fang, Z. et al. Front. Cell Dev. Biol. 2021.

Figure 1. Schematic Drawing of Histone Acetylation

 

Targeted Acetylation Site Analysis Service at MtoZ Biolabs

MtoZ Biolabs provides tailored workflows for site-specific acetylation analysis of client-defined targeted proteins, enabling precise localization and quantification of acetylation sites.

Our targeted acetylation site analysis includes:

✅ Selective acetylated peptide enrichment and purification using TiO₂ or ZrO₂ (metal oxide affinity chromatography) techniques to efficiently capture acetylated peptides with high selectivity.

✅ High-resolution LC-MS/MS acquisition with optimized fragmentation strategies, including HCD and ETD/EThcD, to preserve acetyl groups and obtain detailed fragmentation patterns for confident site localization.

✅ Quantitative analysis of acetylation site occupancy, providing relative modification levels across different conditions. Absolute occupancy can be determined using phosphatase-paired or isotopic standard-based assays if required.

✅ Targeted MS validation via MRM/PRM workflows to confirm specific acetylation sites and evaluate modification frequency with high reproducibility.

 

Sample Submission Guidelines

MtoZ Biolabs recommends submitting purified target proteins or immunoprecipitated complexes for optimal analysis.

Sample Type	Recommended Amount
Purified recombinant or native proteins	≥ 50 µg
Immunoprecipitated or affinity-purified proteins	≥ 100 µg
Cell or tissue lysates containing the target protein	≥ 500 µg total protein

 

Samples should be prepared in MS-compatible buffers with protease inhibitors and free of detergents or salts. Detailed procedures can be found in our Sample Submission Guidelines for Proteomics.

 

Applications of Targeted Acetylation Site Analysis Service

The Targeted Acetylation Site Analysis Service has broad applications across basic and translational research, supporting studies in molecular biology, biochemistry, and biopharmaceutical development.

● Epigenetic regulation research: Determine histone acetylation patterns to understand chromatin remodeling and transcriptional control mechanisms.

● Cancer and metabolic disease studies: Characterize acetylation changes in oncogenic or metabolic regulatory proteins to reveal therapeutic targets or disease mechanisms.

● Drug mechanism evaluation: Assess acetylation modifications induced by HDAC inhibitors or other small molecules to verify their molecular effects.

● Protein engineering and quality control: Verify acetylation status and site occupancy in recombinant or therapeutic proteins to ensure batch-to-batch consistency.

● Cell signaling and stress response research: Investigate acetylation-mediated modulation of key signaling molecules such as p53, NF-κB, or FOXO transcription factors under various stimuli.

 

Why Choose MtoZ Biolabs?

1. Advanced Analytical Platforms

MtoZ Biolabs operates Orbitrap Fusion Lumos and Q Exactive HF systems, ensuring exceptional mass accuracy and sensitivity for confident identification of acetylation sites on targeted protein.

 

2. Site-Specific Precision

We apply optimized HCD and ETD/EThcD fragmentation techniques combined with robust localization algorithms (AcetylationScore, ptmRS) to achieve residue-level accuracy and distinguish positional isomers.

 

3. Optimized Enrichment and Recovery

Our TiO₂ or ZrO₂ enrichment workflows provide high acetylated peptide recovery and selectivity, ideal for limited or low-abundance protein samples.

 

4. Quantitative Reliability

Flexible quantification options including label-free, isotopic, or protease-paired analysis support relative or absolute occupancy assessment with reproducible accuracy.

 

5. Tailored Experimental Design

Each project is customized based on the client’s specific protein, experimental conditions, and research objectives to ensure relevant, interpretable outcomes.

 

6. Transparent One-Time Pricing

All service costs are clearly communicated before project initiation. Our one-time charge model guarantees transparency and cost certainty without hidden fees.

 

Start Your Project with MtoZ Biolabs

Each acetylation site carries important biological insights into how proteins are regulated. MtoZ Biolabs combines advanced mass spectrometry technology with expert data interpretation to help you uncover how specific acetylation modifications influence your protein’s function.

 

Contact us to discuss your target protein and receive a customized analytical plan that supports your research goals.

 

What Could be Included in the Report?

1. Comprehensive Experimental Details

2. Materials, Instruments, and Methods

3. Total Ion Chromatogram & Quality Control Assessment

4. Data Analysis, Preprocessing, and Estimation

5. Bioinformatics Analysis

6. Raw Data Files

 

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