The tRNA pool, composed of tRNA isoacceptor families for each amino acid, is a key determinant of codon usage, protein translation efficiency, and accuracy. Arraystar's solution profiles tRNA expression, tRNA modifications, and tRNA charging with tRNA-seq, tRNA Charging Seq, and tRNA PCR arrays to link tRNA supply with translational control.
Quantify every layer of tRNA-dependent translation regulation
tRNA expression levels profoundly impact mRNA translation. During pathogenesis, changed tRNA repertoires by differential tRNA expression directly regulate the translation efficiency and accuracy of target mRNAs by codon preferences [1]. tRNA modifications exert great influence on protein translation: certain modifications (e.g. m7G, m1A) can increase the affinity between the tRNA and ribosome to elevate mRNA translation speed and stability [2].
tRNA charging is correlated with mRNA translation efficiency: only amino acid charged tRNAs can enter the ribosome and pair with the anticodons, so their aminoacylation levels directly determine tRNA translation activities [3]. Arraystar's solution measures all three layers — expression (tRNA-seq, tRNA PCR Array), modification (tRNA Charging Seq, modification sequencing), and charging (tRNA Charging Seq) — for comprehensive codon usage and translational control studies.
This solution quantifies tRNA expression, tRNA modifications, and tRNA charging — the three key profiles regulating tRNA molecular functions — using tRNA-seq, tRNA Charging Seq, and tRNA PCR arrays, linking tRNA supply with codon usage, translation efficiency, and mRNA stability.
Translational control services — expression, modification, and charging profiling
| Service Name | Profiling Layer | Price |
|---|---|---|
| tRNA Charging Seq | tRNA expression, modification & charging in one assay | |
| tRNA Sequencing | Comprehensive tRNA expression profiling | |
| nrStar™ tRNA PCR Array (H/M) | 185 human/mouse tRNAs, isoacceptors & isodecoders | |
| Pre-designed tRNA Primer Sets | Individual mature tRNA quantification |
Why choose Arraystar for translational control research
tRNA Charging Seq profiles tRNA expression, tRNA modification, and tRNA charging simultaneously.
tRNA-seq and PCR arrays profile the full tRNA pool, including isoacceptors and isodecoders.
Cognate:near-cognate tRNA ratios and codon preferences link tRNA supply to translation.
Correlate tRNA charging with translation activities in the same study.
tRNA PCR arrays and pre-designed primers validate key tRNAs across samples.
Publication-ready graphics and visualization in every project.
tRNA expression, modification, and charging in translation
tRNAs are abundant small RNAs that carry amino acids and decode genetic codons for protein translation in the cells [1]. The tRNA pool, composed of tRNA isoacceptor families for each amino acid, has become an important source of insider information in the study of codon usage, protein translation efficiency and accuracy, biological processes, and human diseases.
tRNA expression levels profoundly impact mRNA translation: changed tRNA repertoires directly regulate the translation efficiency and accuracy of target mRNAs by codon preferences [1]. tRNA modifications exert great influence on protein translation — certain modifications (e.g. m7G, m1A) can increase the affinity between the tRNA and ribosome to elevate mRNA translation speed and stability, whereas aberrant tRNA modifications can cause ribosome stalling or decoding errors [2, 4].
tRNA charging is correlated with mRNA translation efficiency: as only the amino acid charged tRNAs can enter the ribosome and pair with the anticodons, their aminoacylation levels directly determine tRNA translation activities [3].
From total RNA to tRNA supply profiles for translation studies
RNA quality and quantity assessment before the project proceeds, with small-RNA-retaining purification.
tRNA-seq or the nrStar™ tRNA PCR Array profiles tRNA expression at genome-wide or panel scale.
tRNA Charging Seq measures tRNA charging by 3′-CCA end analysis and detects modification-induced misincorporations.
Differential expression, modification, and charging analyses with detailed annotations.
Correlate tRNA supply with codon usage, translation efficiency, and mRNA stability data.
Deliverables for translational control projects
tRNA Charging Seq provides a wealth of tRNA multi-omics data with common analyses and detailed annotations. tRNA-seq and PCR arrays deliver comprehensive expression profiles with focused bioinformatics.
Translational control research applications
The tRNA pool and cognate:near-cognate ratios are dynamically regulated to affect translation efficiency, fidelity, and transcript stability (Nat Rev Mol Cell Biol, 2018).
A dual program for translation regulation in cellular proliferation and differentiation (Cell, 2014).
m7G-modified tRNAs enhance translation efficiency of codon-enriched oncogenic mRNAs; valine aminoacyl-tRNA synthetase promotes therapy resistance in melanoma (Nat Cell Biol, 2024).
A critical period of translational control during brain development at codon resolution (Nat Struct Mol Biol, 2023).
mRNA decay is coupled to translation through codon optimality and tRNA supply.
Method selection depends on the profiling layer you need
| Dimension | tRNA Charging Seq | tRNA Sequencing | tRNA PCR Array / Primer Sets |
|---|---|---|---|
| tRNA expression | Yes | Yes (comprehensive) | Yes (185 tRNAs / individual) |
| tRNA modification | Yes (broad coverage, predicted) | No | No |
| tRNA charging | Yes | No | No |
| Best for | Integrated multi-layer profiling | Genome-wide expression | High-throughput validation |
| Recommended RNA | > 5 µg | > 2 µg | > 5 µg |
Official Arraystar sample submission requirements for translational control projects
Common questions about translational control & codon usage profiling
Key References for Translational Control & Codon Usage Research
Arraystar profiles tRNA expression, modification, and charging for translational control and codon usage research — get a quote and a project timeline tailored to your study.