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PRMT5 Discovery

PRMT5 (Protein Arginine Methyltransferase 5) is an important epigenetic enzyme involved in gene expression, RNA processing, DNA repair, and cancer biology. PRMT5 functions together with its cofactor MEP50 (also known as WDR77) to methylate arginine residues on histones and other regulatory proteins, using SAM as a methyl donor.

MTAP deletion can result in the accumulation of MTA, an endogenous metabolic product that modulates PRMT5 activity. This creates a biologically relevant context for studying PRMT5/MEP50 inhibitors in MTAP-deficient cancer models. ICE Bioscience provides an integrated PRMT5 drug discovery platform covering biochemical, biophysical, cell-based, degradation, and in vivo pharmacology studies.

PRMT5 Drug Discovery Platform

Target System

PRMT5/MEP50 complex assays with SAM- and MTA-relevant biochemical contexts for studying inhibitor binding, enzyme modulation, and synthetic-lethality-related research questions in MTAP-deficient cancer models.

Integrated Service Workflow

Binding characterization, enzymatic activity profiling, PRMT family selectivity assessment, cellular pharmacology, target degradation analysis, and CDX model evaluation can be combined according to project requirements.

Biophysical and Biochemical Assays

SPR Binding Analysis

Surface Plasmon Resonance (SPR) assays are available to characterize small-molecule interactions with the PRMT5/MEP50 complex, including binding affinity, association and dissociation behavior, and cofactor-dependent interaction mechanisms.

MTase-Glo Enzymatic Activity Assay

The luminescence-based MTase-Glo assay supports quantitative measurement of PRMT5 methyltransferase activity and inhibitor-mediated modulation across selected assay conditions.

PRMT Family Selectivity Profiling

Comparative testing across PRMT family members can be used to evaluate target selectivity and identify potential activity against related methyltransferases.

Cell-Based Pharmacology

Cell Proliferation Assays

Cell proliferation assays can be performed in matched wild-type and MTAP-deficient cancer cell models to evaluate cellular responses to PRMT5 pathway modulation.

SDMA and Pathway Biomarker Detection

In-cell Western assays can be used to monitor SDMA-related pharmacodynamic changes and support evaluation of PRMT5 pathway modulation in cellular systems.

MTAP-Deficient Model Selection

Engineered and genetically defined cell models can be incorporated to compare PRMT5 inhibitor responses in relation to MTAP status and other relevant molecular characteristics.

Targeted Protein Degradation and In Vivo Studies

PRMT5 Degradation Analysis

HiBiT knock-in cell lines and Jess assays can be used to assess compound-induced PRMT5 degradation and connect target-protein loss with downstream cellular pharmacology.

CDX Models

HCT116-derived MTAP-deficient CDX models can support evaluation of PRMT5-targeting compounds in an in vivo tumor-growth setting, together with body-weight, tumor-volume, and tumor-weight monitoring.

By combining PRMT5/MEP50 binding analysis, enzymatic assays, selectivity profiling, cellular models, degradation assays, and in vivo pharmacology, ICE Bioscience supports integrated evaluation of PRMT5-targeting strategies in MTAP-deficient cancer research.

Study design, assay configuration, model selection, and data layers can be customized according to the mechanism and development stage of the program.


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