Lysosomal Protein Identification
Choose this workflow when The primary goal is to establish which proteins and peptides are detected in a lysosome-enriched fraction.
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Lysosomal proteome · LC-MS/MS
Lysosomal Proteomics Analysis
Mass spectrometry-based lysosomal proteomics for identifying, quantifying, and comparing lysosome-associated proteins in cells, tissues, and lysosome-enriched fractions.
Use this service when your project requires a lysosome-focused view of protein composition, abundance changes, pathway-associated proteins, or condition-dependent lysosomal remodeling.
- End-to-end support from lysosome isolation or fraction review to LC-MS/MS and bioinformatics
- Flexible sample routes for cells, tissues, and client-prepared lysosome-enriched fractions
- Protein identification, Label-free, DIA, and TMT workflows matched to the study design
Protein identificationQuantitative proteomicsLysosome enrichmentLysosome-enriched fractionsLysosomal Proteomics
Research experience
Supporting Lysosomal Proteomics Projects for Academic and Industry Research Groups
MtoZ Biolabs supports lysosome-focused protein identification and quantitative analysis using cells, tissues, and enriched fractions. Project scope and analytical workflows are configured according to sample status, study design, and available material.
When Lysosomal Proteomics Analysis Is a Good Fit
Use this service when the research question requires a lysosome-focused protein profile, comparative analysis across experimental groups, or a defined route from starting material to LC-MS/MS results.
Lysosome-Focused Protein Identification
Establish a protein and peptide identification profile from a lysosome-enriched fraction rather than relying only on whole-cell proteomics.
Comparative Lysosomal Proteome Profiling
Compare lysosome-associated protein abundance across treatment groups, genotypes, disease and control samples, time points, or other defined experimental conditions.
Cells or Tissues Requiring Lysosome Isolation
Start from cultured cell lines, primary cells, or fresh or frozen tissues when lysosome isolation and protein extraction are required before LC-MS/MS analysis.
Client-Prepared Lysosome Fractions
Submit a lysosome-enriched, subcellular, or membrane-rich fraction when fractionation has already been completed in the client laboratory.
Candidate Protein Prioritization
Use differential analysis, quantitative evidence, and pathway context to prioritize proteins for biological interpretation and follow-up planning.
Lysosome-Related PTM Questions
Request a feasibility review for lysosomal glycosylation, ubiquitination, or phosphorylation studies when sufficient enriched material may be available.
Choose the Right Analysis Workflow
Select the analytical route according to the research goal, sample number, comparison design, available input, and expected output. Each analytical route can be combined with either sample submission route.
Not sure which route fits? Select “Not sure — recommend a method” in the project form and provide the sample route, available input, group design, and expected result.
Label-Free Quantitative Proteomics
Choose this workflow when You need protein-level comparison across defined biological groups without multiplex labeling.
Click to preview →DIA Quantitative Proteomics
Choose this workflow when You need consistent quantitative acquisition across multiple lysosomal proteome samples.
Click to preview →TMT Quantitative Proteomics
Choose this workflow when You need multiplexed comparison across defined sample groups and have sufficient protein input.
Click to preview →PTM Feasibility Review
Choose this workflow when The project focuses on lysosomal glycosylation, ubiquitination, or phosphorylation.
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Workflow preview
Select a route above
After you select a route, this panel will summarize the best next step and carry that choice into the quote form.
Choose Your Sample Submission Route
Select the route that matches the current sample state. Either route can be combined with protein identification, Label-free, DIA, TMT, or a project-specific feasibility route.
Route A · MtoZ Isolation
Use the MtoZ Isolation Route
Start with Cells or Tissues
Accepted starting materials
Cultured cell lines, primary cells, fresh tissue, and frozen tissue
Minimum input
At least 1 × 10⁷ cells per sample or 20–50 mg tissue per sample
Isolation workflow
Centrifugation-column-based rapid lysosome separation without density-gradient ultracentrifugation
QC checkpoint
LAMP1 and LAMP2 Western blot assessment before proteomics
Next step
Proceed to the approved identification or quantitative workflow
Route B · Client-Prepared Fraction
Submit a Lysosome-Enriched Fraction
Accepted preparations
Lysosome-enriched, subcellular, and membrane-rich fractions
Minimum input
20–50 μg enriched protein per sample
Required records
Complete fractionation procedure, buffer and additive composition, and protein concentration
Supporting QC
Available purity assessment, electrophoresis image, or other preparation QC data
Special sample rule
Body fluids, dried blood spots, PBMCs, white blood cells, fibroblasts, and organoids must use this route
Lysosomal Proteomics Analysis Workflow
A project path from sample and design review to lysosome isolation or fraction receipt, LC-MS/MS analysis, bioinformatics, and reporting.
Project and Sample Review
Confirm the species, sample type, available amount, group design, preparation status, buffer, and analysis goals.
Lysosome Isolation or Fraction Receipt
Isolate lysosomes from eligible cells or tissues, or review a client-prepared lysosome-enriched fraction.
Lysosomal Marker and Input Assessment
Assess LAMP1 and LAMP2 and confirm sufficient enriched protein for the selected workflow.
Protein Extraction and Digestion
Extract proteins, perform enzymatic digestion, and prepare peptides for LC-MS/MS analysis.
LC-MS/MS Analysis
Acquire protein identification, Label-free, DIA, or TMT data according to the approved design.
Data Analysis and Reporting Deliver
Perform quantitative and bioinformatics analysis and deliver results, QC information, and the project report.
The final route is confirmed according to the sample state, input amount, comparison design, and selected analytical objective.
What to Send Us
Review the submission route according to the starting material and lysosome-isolation status. Final sample acceptance is confirmed before shipment.
| Starting Material | Submission Route | Sample Requirement |
|---|---|---|
| Cultured cell line or primary cell pellet | MtoZ performs lysosome isolation | At least 1 × 10⁷ cells per sample. Provide species, cell line, treatment, group, replicate, collection, and storage information. |
| Fresh or frozen tissue | MtoZ performs lysosome isolation | 20–50 mg tissue per sample. Keep collection, handling, storage, and sampling position consistent across comparison groups. |
| Client-prepared lysosome-enriched fraction | Submit the enriched fraction directly | 20–50 μg protein per sample. Provide the complete isolation procedure, buffer composition, protein concentration, and available QC data. |
| Other subcellular or membrane-rich fraction | Submit the prepared fraction directly | 20–50 μg protein per sample. Provide the fractionation method, buffer system, detergent and additive information, protein concentration, and available QC data. |
| Serum, plasma, CSF, urine, or dried blood spot | Client-prepared lysosomal fraction only | The client must complete lysosome isolation before shipment. MtoZ Biolabs does not isolate lysosomes directly from these starting materials. |
| PBMC, white blood cell, fibroblast, or organoid | Client-prepared lysosomal fraction only | Submit the isolated lysosomal fraction with preparation records, buffer information, protein concentration, and available QC data. |
Check Sample Compatibility Before Shipment
Share your sample type, available amount, preparation status, buffer composition, and available QC records for review before shipment.
Results & Deliverables
Deliverables are configured according to whether the project focuses on protein identification, comparative quantification, candidate prioritization, or a specialized feasibility question.
Mass Spectrometry Raw Data
Instrument raw files and project-associated acquisition information.
Protein and Peptide Identification
Protein and peptide identification tables with supporting evidence and applicable QC information.
Quantitative Matrix
Protein-level quantitative results for Label-free, DIA, or TMT projects.
Differential Analysis
Group-comparison statistics, differential protein tables, and visual summaries.
Candidate Prioritization
Ranked candidate proteins based on quantitative, comparative, and statistical evidence.
GO, KEGG, and PPI Analysis
Standard functional enrichment, pathway, and protein-interaction-network analysis.
Reactome Analysis
Available for Bos taurus, Canis familiaris, Gallus gallus, Homo sapiens, Mus musculus, Rattus norvegicus, Sus scrofa, and Xenopus tropicalis.
Quality Control
Applicable QC information associated with sample preparation and LC-MS/MS data analysis.
Figures and Project Report
Analysis figures, method descriptions, result tables, summary report, and project-level result interpretation.
Platform & Capabilities
MtoZ Biolabs connects sample-route review, lysosome isolation, QC, LC-MS/MS, quantitative analysis, bioinformatics, and result interpretation within one project workflow.
Project-Specific Sample Routing
Configure the project according to whether the starting material is a cell pellet, tissue, lysosome-enriched fraction, or another prepared subcellular fraction.
Rapid Lysosome Isolation
Use a centrifugation-column-based rapid separation workflow that avoids density-gradient ultracentrifugation and can obtain a lysosome pellet in approximately 1.5 hours. Yield and purity are intended to support downstream proteomics analysis.
LAMP1/LAMP2 Marker Assessment
Use Western blot assessment of LAMP1 and LAMP2 as the lysosomal marker checkpoint. Samples with positive marker evidence and sufficient protein input can proceed to proteomics analysis.
LC-MS/MS Analysis
Support protein identification, Label-free, DIA, and TMT workflows according to the analytical objective and available material.
Flexible Data Processing
Use Spectronaut or DIA-NN for DIA projects according to the project and data characteristics. Specific software versions are not presented as a standard service-page specification.
Bioinformatics and Transparent Delivery
Deliver applicable raw data, identification tables, quantitative matrices, differential analysis, GO, KEGG, PPI, eligible Reactome results, applicable QC information, figures, and reports.
Representative Project Coverage
Previous cell-derived projects identified 1,000+ proteins and 5,000+ peptides, while tissue-derived projects identified 3,000+ proteins and 20,000+ peptides. Actual coverage depends on sample quality, lysosome enrichment, species, input amount, sample complexity, and analytical design.
Applications of Lysosomal Proteomics Analysis
Lysosomal proteomics can support protein identification and comparative analysis in confirmed lysosome-related disease and pathway research areas.
Neurodegenerative Disease Research
Study lysosome-associated protein changes related to protein clearance, endolysosomal trafficking, autophagy-related processes, neuronal stress, and lysosomal dysfunction in neurodegenerative disease models.
Lysosomal Storage Disorder Research
Investigate lysosomal enzymes, transporters, accessory proteins, and pathway-level protein changes associated with lysosomal storage disorders.
Cancer Research
Compare lysosome-associated protein profiles across tumor models, treatment conditions, genotypes, or defined experimental groups.
Immunity and Inflammation
Profile lysosome-associated protein changes related to immune activation, inflammatory responses, and antigen-processing pathways.
Autophagy-Related Research
Compare lysosomal protein profiles across genetic, pharmacological, treatment, or stress-related conditions affecting autophagy and lysosome-associated cellular processes.
FAQs
Common questions about sample preparation, workflow selection, quantitative design, data delivery, and result interpretation.
Whole-cell proteomics provides a broad view of the cellular proteome, but organelle-specific changes may be diluted by proteins from other cellular compartments. Lysosomal proteomics is more appropriate when the study focuses on lysosome-associated protein composition, lysosomal remodeling, autophagy and endolysosomal pathways, or condition-dependent changes within a lysosome-enriched fraction.
Cultured cell lines, primary cells, and fresh or frozen tissues can be submitted without prior lysosome isolation; MtoZ Biolabs can perform the isolation. Serum, plasma, CSF, urine, dried blood spots, PBMCs, white blood cells, fibroblasts, and organoids require client-prepared lysosome-enriched fractions. Prepared lysosome-enriched, subcellular, and membrane-rich fractions can also be submitted directly.
The standard service can accept cultured cell lines, primary cells, fresh or frozen tissues, lysosome-enriched fractions, subcellular fractions, and membrane-rich fractions. Human, mouse, and rat samples can follow the standard project-review route. Other species require individual feasibility assessment.
Cell pellets should contain at least 1 × 10⁷ cells per sample. Tissue samples should provide 20–50 mg per sample. Client-prepared lysosome-enriched, subcellular, or membrane-rich fractions should provide 20–50 μg protein per sample. PTM-oriented projects may require milligram-scale lysosome-enriched material and are evaluated separately.
Protein identification is appropriate when the primary objective is to establish which proteins and peptides are detected in the lysosome-enriched fraction. Label-free, DIA, and TMT support comparative quantitative studies. Selection depends on sample number, group structure, available protein amount, required quantitative consistency, multiplexing needs, and expected downstream analysis.
The design depends on the biological question, expected variability, treatment structure, and available samples. Matched biological replicates are recommended for comparative proteomics. Provide the planned groups, treatment conditions, controls, and replicate numbers before sample submission so the analytical route can be reviewed.
The enriched lysosomal fraction is assessed by Western blot detection of LAMP1 and LAMP2. Samples with positive lysosomal marker evidence and sufficient protein input can proceed to the selected proteomics workflow. Routine multi-organelle contamination and enrichment-purity panels are not included in the standard workflow. Subcellular localization analysis may be evaluated as a separate service scope where appropriate.
Low-abundance proteins can be attempted after lysosome enrichment, but detection depends on target abundance, enrichment quality, protein input, sample complexity, and LC-MS/MS coverage and cannot be guaranteed. Lysosomal glycosylation, ubiquitination, and phosphorylation projects require project-specific feasibility review and may require milligram-scale lysosome-enriched material.
Depending on the selected workflow, deliverables can include mass spectrometry raw data, protein and peptide identification tables, quantitative matrices, differential protein results, candidate-prioritization outputs, GO, KEGG, PPI and eligible Reactome analysis, applicable QC information, figures, method descriptions, analysis reports, and project-level result interpretation.
The project timeline depends on the starting sample type, whether lysosome isolation is required, sample number, selected identification or quantitative workflow, and data-analysis scope. A project-specific schedule is provided after the sample and study design have been reviewed.
Downstream candidate validation is not included in the standard lysosomal proteomics deliverables. Potential follow-up validation, including Western blot, PRM/MRM, or ELISA, may be evaluated separately according to the candidate target, available reagents, sample requirements, and project scope. No follow-up validation method is guaranteed as a standard continuation of the proteomics project. Subcellular localization analysis may be evaluated as a separate service scope. Lysosome colocalization and TEM-based structural or ultrastructural validation are not provided.