RNA EMSA Service for Plant RNA-Protein Interaction
Plant RNA-Protein Interaction Analysis
CD BioSciences provides RNA EMSA services for studying interactions between plant RNA-binding proteins and defined RNA sequences. The service supports RNA probe design, binding reaction setup, non-denaturing PAGE, signal detection, and result interpretation for RNA-protein interaction validation.
RNA EMSA is suitable for projects involving RNA motifs, transcript fragments, UTR regions, candidate regulatory RNA elements, purified RNA-binding proteins, and plant protein extracts.
Service Overview
RNA EMSA detects the formation of RNA-protein complexes by comparing the mobility of a labeled RNA probe with that of a protein-bound RNA complex in native PAGE. Compared with DNA EMSA, RNA EMSA requires additional attention to RNA integrity, secondary structure, RNase contamination, and non-specific RNA-binding activity.
Figure 1. RNA probe design and RNA-protein complex formation in RNA EMSA.
Supported RNA EMSA Projects
Validation of protein binding to a predicted RNA motif or short regulatory sequence.
Analysis of interactions between RNA-binding proteins and defined transcript regions, including UTR fragments.
Use of unlabeled RNA competitors or mutant RNA probes to evaluate sequence-related binding.
Comparison of RNA-binding activity across protein concentrations, treatments, or sample sources.
RNA Probe Design Considerations
RNA probe design should reflect the biological question while minimizing avoidable technical artifacts. Probe length, motif position, predicted secondary structure, sequence composition, and compatibility with mutant or competitor probe design are reviewed during project planning.
| Design Factor | Reason for Review |
|---|---|
| RNA motif position | The candidate binding site should be accessible and appropriately represented in the probe. |
| Secondary structure | Strong local structure may affect protein access or produce unexpected mobility patterns. |
| RNA integrity | RNase contamination or degraded probes can compromise binding interpretation. |
| Competitor design | Unlabeled wild-type and mutant RNA competitors can help assess specificity. |
Lane Design and Controls
RNA EMSA interpretation should include controls that distinguish protein-dependent binding from RNA degradation, probe retention, or non-specific protein-RNA association.
Figure 2. Representative RNA EMSA lane layout for binding and specificity assessment.
- Free RNA probe control
- RNA probe with protein sample
- Excess unlabeled RNA competitor
- Mutant RNA competitor
- Control protein or negative sample, if available
- Protein concentration gradient, when needed
Sample and Information Requirements
- Target RNA-binding protein name and species
- RNA sequence, transcript region, candidate motif, or related literature
- Protein source and sample concentration
- Expected assay type, such as validation or competition EMSA
- Number of samples or treatment groups
- Special handling requirements for RNA-sensitive samples
For RNA EMSA, sample handling and probe integrity are especially important. Project-specific requirements may be adjusted according to probe length, labeling method, and protein source.
Deliverables
- RNA probe design information
- Probe synthesis and labeling information
- Experimental lane design and assay record
- Original gel images
- Data interpretation and standard report
Related Services
Please contact us with your RNA sequence, target protein information, sample type, and expected validation goal for RNA EMSA project evaluation.
For research use only, not for clinical use.