tRNA modifications and tRNA-derived small RNAs are intimately linked to neural function and stress responses. METTL8-dependent mitochondrial tRNA m3C is indispensable for neural stem cell maintenance, and tRFs assemble stress granules in response to stress conditions. Arraystar's solution profiles these layers by m3C HAC-Seq, m7G TRAC-Seq, tRNA Charging Seq, and tRF&tiRNA-seq.
Connecting tRNA biology to neural dysfunction and cellular stress
In mitochondria, METTL8-dependent m3C on tRNAThr/Ser(UCN) is indispensable for protein synthesis, respiratory activity, and neural stem cell maintenance [1]. DALRD3-dependent modification of tRNA-Arg is crucial for neurological function [2]. Ribosome stalling induced by mutation of a CNS-specific tRNA causes neurodegeneration [3].
tRFs and tiRNAs are generated through precise biogenesis processes from tRNA and perform many biological functions; they assemble stress granules in response to stress conditions. Neuronal Nsun2 deficiency produces tRNA epitranscriptomic alterations and proteomic shifts impacting synaptic signaling and behavior [4]. Arraystar's solution combines base-resolution tRNA modification sequencing, tRNA expression profiling, and tRF&tiRNA sequencing to study these mechanisms.
This solution profiles tRNA expression, tRNA modifications, and tRF/tiRNA stress responses in neural and stress-related research, using m3C HAC-Seq, m7G TRAC-Seq, tRNA Charging Seq, tRNA-seq, and tRF&tiRNA-seq to connect tRNA biology with neurodegeneration mechanisms.
Neurodegeneration and stress research services — combine modification mapping with expression profiling
| Service Name | Profiling Layer | Price |
|---|---|---|
| m3C HAC-Seq | m3C sites at single-nucleotide resolution | |
| m7G TRAC-Seq | m7G sites at single-nucleotide resolution | |
| tRNA Charging Seq | tRNA expression, modification & charging | |
| tRNA Sequencing | Comprehensive tRNA expression profiling | |
| tRF&tiRNA Sequencing | tRF/tiRNA expression and stress signals |
Why choose Arraystar for neurodegeneration research
m3C and m7G tRNA modifications mapped at single-nucleotide resolution, including mitochondrial tRNAs.
Chemical-based detection with quantitative stoichiometry, without antibody background.
tRNA Charging Seq profiles expression, modification, and charging in one assay.
tRF/tiRNA-seq captures stress-granule-associated tRF populations.
Differential analyses, IGV alignments, motif analysis, and publication-quality graphics.
Sequencing services combine for comprehensive neural tRNA studies.
tRNA biology in neural function and stress
m3C at position 32 of the anticodon loop is a conserved tRNA modification found in eukaryotic tRNASer, tRNAThr, and tRNAArg. In mitochondria, METTL8-dependent m3C on tRNAThr/Ser(UCN) is indispensable for protein synthesis, respiratory activity, and neural stem cell maintenance [1]. DALRD3-dependent modification of tRNA-Arg is crucial for neurological function [2].
m7G is a conserved tRNA modification predominantly located at position 46 in the variable loop of certain tRNAs, deposited by the METTL1/WDR4 complex. It is indispensable for stem cell self-renewal and proper lineage commitment during embryonic development [3].
tRFs and tiRNAs perform many biological functions as small noncoding RNAs; they assemble stress granules in response to stress conditions. Neuronal Nsun2 deficiency produces tRNA epitranscriptomic alterations and proteomic shifts impacting synaptic signaling and behavior [4]. Ribosome stalling induced by mutation of a CNS-specific tRNA causes neurodegeneration [5].
From neural samples to tRNA-level mechanisms
RNA quality and quantity assessment before the project proceeds, with small-RNA-retaining purification.
m3C HAC-Seq and/or m7G TRAC-Seq map modification sites at single-nucleotide resolution.
tRNA-seq or tRNA Charging Seq profile tRNA expression and charging.
tRF&tiRNA-seq profiles tRNA-derived small RNAs associated with stress responses.
Cross-reference modification, expression, charging, and tRF/tiRNA data with neural phenotypes.
Deliverables for neurodegeneration projects
Each service includes detailed bioinformatics analyses to facilitate insights into tRNA biology, diseases, and biomarker applications.
Neurodegeneration and stress research applications
METTL8-dependent mitochondrial tRNA m3C modification regulates cortical neurogenesis (Cell Stem Cell, 2023).
DALRD3, mutated in epileptic encephalopathy, targets arginine tRNAs for 3-methylcytosine modification (Nat Commun, 2020).
Neuronal Nsun2 deficiency produces tRNA epitranscriptomic alterations impacting synaptic signaling and behavior (Nat Commun, 2021).
Ribosome stalling induced by mutation of a CNS-specific tRNA causes neurodegeneration (Science, 2014).
High-fidelity and differential nonsense suppression in live cells and a frontotemporal dementia allele with human transfer RNAs (Nucleic Acids Res, 2025).
tRFs assemble stress granules in response to stress conditions.
Method selection depends on your research question
| Dimension | m3C HAC-Seq | m7G TRAC-Seq | tRNA Charging Seq | tRF&tiRNA-Seq |
|---|---|---|---|---|
| Primary output | m3C sites & levels | m7G sites & levels | Expression, modification & charging | tRF/tiRNA expression |
| Best for | Mitochondrial/neural m3C biology | Stem cell and m7G biology | Integrated tRNA multi-omics | Stress granules and fragments |
| Resolution | Single-nucleotide | Single-nucleotide | Single-nucleotide (predicted) | Fragment-level |
| Recommended RNA | > 5 µg | > 5 µg | > 5 µg | > 1 µg |
Official Arraystar sample submission requirements for neurodegeneration projects
Common questions about neurodegeneration & stress response studies
Key References for Neurodegeneration & Stress Response Research
Arraystar profiles tRNA modifications, expression, and tRF/tiRNA stress signals for neurodegeneration research — get a quote and a project timeline tailored to your study.