Nuclear Pore Complex Proteomics Services

Published: June 30, 2025

The nuclear pore complex (NPC) is one of the most massive and structurally complex protein assemblies in the nuclear envelope of eukaryotic cells. Composed of over 30 distinct nucleoporins (Nups) arranged in an eightfold symmetrical structure, the NPC serves as a highly regulated gateway for macromolecular transport between the nucleus and cytoplasm. In addition to mediating the bidirectional trafficking of proteins and RNA, the NPC plays pivotal roles in chromatin organization, signal transduction, and cell cycle control. With the rapid development of high-resolution mass spectrometry, nuclear pore complex proteomics has emerged as a powerful tool for investigating its conformational dynamics, interaction complexity, and post-translational regulation.

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Figure 1. Schematic Diagram of the Nuclear Pore Complex Structure

MtoZ Biolabs offers high-quality Nuclear Pore Complex Proteomics Services that leverage advanced mass spectrometry platforms (Orbitrap Fusion Lumos, Q Exactive HF) and deep expertise in subcellular proteomics. Our Nuclear Pore Complex Proteomics Services cover the entire workflow—from NPC isolation and purification to protein identification, quantification, and interactome analysis—empowering researchers to uncover the mechanistic roles of NPCs under various physiological and pathological states.

Services at MtoZ Biolabs

To support comprehensive investigations of NPC biology, MtoZ Biolabs offers customizable Nuclear Pore Complex Proteomics Services across the following modules:

· NPC Isolation and Purification

We employ density gradient centrifugation, ultracentrifugation, or immunoaffinity approaches to isolate high-purity NPCs from cells or tissues, ensuring high specificity and structural integrity for downstream analysis.

· Protein Identification and Quantification

Through LC-MS/MS-based proteomic workflows, we profile NPC composition and quantify expression changes across experimental conditions, enabling precise comparison across time points, treatments, or biological states.

· Interaction Network Analysis

Using crosslinking, pull-down assays, or co-immunoprecipitation, we map intra-Nup interactions and their associations with transport receptors, chromatin complexes, and RNA-binding proteins.

· Post-translational Modification Profiling

We provide targeted PTM detection of NPC components—such as phosphorylation, acetylation, and ubiquitination—offering insights into regulatory mechanisms influencing nuclear transport and signal integration.

Analysis Workflow

1. Sample Preparation and Nuclear Membrane Extraction

Cells are lysed using high-salt buffers to extract nuclear envelope-enriched fractions.

2. NPC Enrichment and Purification

NPCs are purified using immunoprecipitation or density gradient centrifugation from cultured cells or tissues.

3. Protein Digestion and Mass Spectrometry

Proteins are enzymatically digested and analyzed via LC-MS/MS using high-resolution Orbitrap systems.

4. Database Search and Quantification

We apply multi-database and multi-software algorithms to enhance the identification and quantification of low-abundance NPC proteins.

5. Bioinformatics and Reporting

We perform GO/KEGG enrichment, domain conservation analysis, and nuclear transport pathway modeling, delivering clear, publication-ready reports with biological insight visualizations.

Why Choose MtoZ Biolabs?

✔ Advanced Analysis Platform: Equipped with Orbitrap Fusion Lumos and Q Exactive HF systems combined with Nano-LC platforms for ultra-sensitive NPC proteomics.

✔ Proven Subcellular Expertise: Years of experience in nuclear proteomics with validated protocols for NPC isolation and enrichment.

✔ Integrated Multi-Omics Capability: Seamless combination of PTM analysis, interaction mapping, and systems-level pathway insights.

✔ Tailored Experimental Workflows: Flexible project design tailored to your sample type, experimental goals, and budget.

✔ One-Time-Charge: Our pricing is transparent, no hidden fees or additional costs.

Applications

Our Nuclear Pore Complex Proteomics Services support diverse biological and translational research directions, including:

Investigating NPC composition and remodeling during embryonic development
Monitoring Nup dynamics across cell cycle progression and differentiation
Analyzing NPC alterations in disease models (e.g., neurodegeneration, cancer)
Studying nuclear transport pathways and drug target interactions
Elucidating how Nup modifications regulate transcription and cell fate decisions

FAQ

Q1: Can NPC proteomic dynamics be compared across different biological states?

Yes. MtoZ Biolabs offers comparative proteomics across multiple time points and experimental conditions—including cell cycle stages, drug treatments, differentiation models, and stress responses. Quantitative platforms (TMT/iTRAQ/Label-Free) combined with Nano-LC-MS/MS ensure robust, high-resolution detection of NPC dynamics.

In addition to Nuclear Pore Complex Proteomics Services, MtoZ Biolabs provides in-depth analysis of other nuclear substructures such as the nucleolus, nuclear envelope, and nuclear matrix. Whether your focus is on RNA processing, chromatin remodeling, or stress adaptation, our platform delivers high-quality data and customized support to advance your research goals.