Target Information
| Target information | Ribosomal protein S6 kinase alpha-1 and closely related p90 ribosomal S6 kinase family proteins, commonly referred to as p90Rsk, are serine/threonine kinases involved in signal-responsive phosphorylation events linked to cell growth, survival, and transcriptional regulation. Phosphorylation at Thr359 and Ser363 is commonly used as a marker of p90Rsk activation state and is frequently examined in studies of kinase signaling, pathway dynamics, and stimulus-dependent protein regulation. This phospho-p90Rsk-T359/S363 antibody from MtoZ Biolabs is positioned as an IP-MS validated antibody for researchers seeking a phospho-specific p90Rsk antibody for immunoprecipitation and downstream mass spectrometry analysis. Validated by IP-MS, it can support enrichment of phosphorylated p90Rsk species in IP-MS workflows and may be useful for targeted signaling studies, phospho-state profiling, and pathway-focused protein analysis. As an IP antibody for phospho-p90Rsk, this reagent helps connect selective phospho-target capture with downstream identification or characterization of modified protein populations by mass spectrometry. |
|---|---|
| Target name | / |
| Aliases | RSK, HU-1, RSK1, p90Rsk, MAPKAPK1, MAPKAPK1A |
| UniProt accession | / |
Product Introduction
| Primary applications |
Before delivery, each antibody undergoes IP-MS validation to verify its ability to recognize and enrich the intended target protein |
|---|---|
| Other applications | WB, IF, ICC, ELISA |
| Species reactivity | Human, Mouse, Rat |
| Clonality | Monoclonal |
| Host | Rabbit |
| Recommended dilution ratio | IP: 0.5μg-4μg antibody for 500μg-700μg extracts of whole cells |
| Specification | 50/100/200 μL |
| Storage condition | Short-term storage at 2-8 °C. Long-term storage at -20 °C. Avoid repeated freeze-thaw cycles |
MtoZ Biolabs IP-MS Workflow Products
MtoZ Biolabs offers a fully integrated IP-MS workflow solution, combining antibodies validated for IP-MS with expertly paired IP kits and seamless downstream mass spectrometry services. Our platform empowers researchers to achieve reliable target enrichment, protein interaction mapping, and comprehensive proteomic profiling with confidence and efficiency.
IP-MS Validated Antibodies
- Antibodies rigorously tested for IP-MS applications
- Minimize experimental uncertainty and accelerate research timelines
- Broad applicability across multiple species and protein targets
Expertly Paired IP Kits
- Designed and validated to complement MtoZ IP-MS antibodies
- Detailed step-by-step experimental protocols for reproducible target enrichment
- Optimized workflows to maximize antibody performance
Comprehensive IP-MS Analysis Services
- Submit immunoprecipitated samples directly to MtoZ Biolabs
- High-resolution mass spectrometry for target verification, interaction mapping, and proteomics studies
- Structured, publication-ready reports for seamless documentation and data reproducibility
Antibody Validation Levels
To support different research goals, budgets, and evidence requirements, our antibodies are available with multiple validation levels. Each antibody undergoes IP-MS validation before delivery to confirm target-specific recognition and enrichment. For projects requiring additional confirmation, Western blot validation can be added to provide orthogonal evidence of target detection.
| Validation level | Included validation | Best for |
|---|---|---|
| IP-MS Only | Confirms target-specific enrichment by immunoprecipitation followed by mass spectrometry analysis. | IP-based protein enrichment and target specificity assessment. |
| Western Blot Only | Confirms target detection by Western blot under defined experimental conditions. | Routine target detection and expression-level assessment. |
| IP-MS + Western Blot | Combines mass spectrometry-based target enrichment evidence with Western blot-based detection evidence. | Customers requiring more comprehensive validation support. |
Antibody Validation Workflow

Validation Report Included
IP-MS
- IP experiment record
- Antibody usage information
- Original experimental image
- Mass spectrometry parameters
- Identified target peptides
- Representative MS/MS spectra
Western Blot
- WB experimental conditions
- Original blot image
- Qualitative target band recognition result
MtoZ Biolabs IP-MS Antibody Solutions
Traditional Antibody Supplier
Conventional workflowCustomers need to purchase small amounts of antibody for in-house testing
01Validation depends on customer-provided samples and workflows
02Suppliers usually stop support after product delivery
03Customers must find a separate provider for MS or interaction analysis
04Higher risk of repeated trial-and-error
05
MtoZ Biolabs IP-MS Antibody Solutions
RecommendedMtoZ Biolabs can provide IP-MS validation before or at the time of purchase
01Validation is supported by MS-based evidence and a detailed report
02Antibody purchase can be directly connected to downstream IP-MS services
03Antibody and downstream IP-MS analysis can be completed within a single workflow
04Reduces trial attempts and accelerates project progress
05
Why Choose MtoZ Biolabs?
Antibodies Validated
Target Proteins
Research Institutions Served
Full Validation Reports Included
Structured IP/Co-IP/IP-MS validation reports are included with every antibody for easy lab recordkeeping and project documentation.
Ultra-High Resolution MS Platform
IP-MS validation on high-resolution LC-MS/MS instrumentation for confident target enrichment and specificity assessment.
Explore More IP-MS Validated Antibodies
Complementary Protein Interaction Analysis Services
In addition to IP-MS validated antibodies, MtoZ Biolabs offers supporting interaction analysis services for downstream protein enrichment and protein interaction studies.


