• IP-MS Validated P15RS Polyclonal Antibody
    • Cat#: MSVAB-14813
    • Primary Applications: IP, Co-IP, IP-MS
    • Species Reactivity: Human, Mouse
    • Antibody Specificity: P15RS
    • Other Applications: WB, IF, ICC, ELISA, IHC, IF

    Customer Support Program

    • First-time antibody customers may receive IP-MS identification for one sample at no additional cost with their first antibody purchase.
    • Customers who purchase antibodies may receive 10% off subsequent IP-MS identification services.
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Target Information

Target informationRegulation of nuclear pre-mRNA domain containing 1A (RPRD1A), also known as P15RS or sT3101, is a nuclear protein implicated in pre-mRNA regulation, transcriptional control, and cell cycle-related gene regulation. RPRD1A contains a RAR domain involved in nuclear pre-mRNA regulation and interacts with the phosphorylated C-terminal domain of the largest RNA polymerase II subunit, POLR2A. It has also been linked to CTD dephosphorylation, regulation of CCND1 and CCNE1, attenuation of WNT signaling, and cell cycle control. For nuclear RNA regulation and transcription-associated complex studies, IP-MS Validated P15RS Polyclonal Antibody from MtoZ Biolabs supports enrichment of RPRD1A/P15RS prior to LC-MS/MS analysis. This P15RS antibody validated by IP-MS is suitable for investigating POLR2A CTD-associated proteins, nuclear pre-mRNA regulatory complexes, and cell cycle-linked interaction networks. Projects requiring a P15RS IP antibody or a P15RS antibody for immunoprecipitation can use this product to support target-focused protein complex characterization.
Target nameregulation of nuclear pre-mRNA domain containing 1A
AliasesRPRD1A, Regulation of nuclear pre-mRNA domain-containing protein 1A, p15INK4B-related protein, p15INK4B related protein, HsT3101
UniProt accessionQ96P16

Product Introduction

Primary applications
  • IP (Immunoprecipitation)
  • Co-IP (Co-Immunoprecipitation)
  • IP-MS (Immunoprecipitation-Mass Spectrometry)

Before delivery, each antibody undergoes IP-MS validation to verify its ability to recognize and enrich the intended target protein

Other applicationsWB, IF, ICC, ELISA, IHC, IF
Species reactivityHuman, Mouse
ClonalityPolyclonal
HostRabbit
Recommended dilution ratioWB : 1:1000-1:6000
Specification50 μL,100 μL,150 μL
Storage conditionShort-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 levelIncluded validationBest for
IP-MS OnlyConfirms target-specific enrichment by immunoprecipitation followed by mass spectrometry analysis.IP-based protein enrichment and target specificity assessment.
Western Blot OnlyConfirms target detection by Western blot under defined experimental conditions.Routine target detection and expression-level assessment.
IP-MS + Western BlotCombines mass spectrometry-based target enrichment evidence with Western blot-based detection evidence.Customers requiring more comprehensive validation support.

Antibody Validation Workflow

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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 workflow
  • Customers need to purchase small amounts of antibody for in-house testing

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  • Validation depends on customer-provided samples and workflows

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  • Suppliers usually stop support after product delivery

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  • Customers must find a separate provider for MS or interaction analysis

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  • Higher risk of repeated trial-and-error

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MtoZ Biolabs IP-MS Antibody Solutions

Recommended
  • MtoZ Biolabs can provide IP-MS validation before or at the time of purchase

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  • Validation is supported by MS-based evidence and a detailed report

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  • Antibody purchase can be directly connected to downstream IP-MS services

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  • Antibody and downstream IP-MS analysis can be completed within a single workflow

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  • Reduces trial attempts and accelerates project progress

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Why Choose MtoZ Biolabs?

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Antibodies Validated

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Target Proteins

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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.

FAQ

IP-MS validation means that the antibody is first used to pull down proteins from a cell lysate, and the captured proteins are then analyzed by mass spectrometry. This helps confirm whether the antibody can recognize and enrich its intended target protein, instead of mainly pulling down unrelated background proteins.
IP-MS validation does not require a long additional wait. Based on our optimized workflow, it typically adds no more than 5 to 7 business days to the standard processing time. After validation is completed, the antibody and validation report are delivered together.
The validation report includes key experimental records, workflow details, antibody usage information, mass spectrometry settings, target protein identification results, and signal intensity evaluation. The report provides clear supporting data that customers can review and use for project documentation.
We use an ultra-high resolution mass spectrometry platform for IP-MS validation. This platform supports accurate protein identification and provides reliable peptide-level evidence for reviewing antibody validation results.
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