| SCA1 | Spinocerebellar ataxia type 1 |
| CAG | cytosine–adenine–guanine |
| ATXN1 | ataxin-1 |
| Ser776 | serine 776 |
| ASO | antisense oligonucleotide |
| RNAi | RNA interference |
| NfL | neurofilament light protein |
| iPSC | induced pluripotent stem cell |
| NLS | nuclear localization signal |
| UPS | ubiquitin–proteasome system |
| ATXN1-CIC | ataxin-1-Capicua |
| CIC | Capicua |
| HMGB ½ | High-Mobility Group Box ½ |
| LANP | leucine-rich acidic nuclear protein |
| PKA | protein kinase |
| RBM17 | RNA-Binding Motif Protein 17 |
| U2AF65 | U2 snRNP auxiliary factor 65 kDa |
| NLK | Nemo-like kinase |
| ISG15 | Interferon-stimulated gene 15 |
| GFI1 | growth factor independence 1 |
| SMRT | Silencing Mediator of Retinoid and Thyroid Receptors |
| Tip60 | Tat-interacting protein 60 |
| RORα | retinoid-related orphan receptor α |
| Boat1 | ATXN1-like paralog |
| RPA | replication protein A |
| ASR | acoustic startle response |
| FST | forced swim test |
| CaB | calbindin |
| PV | Parvalbumin |
| CCK | cholecystokinin |
| LPS | lipopolysaccharide |
| Ara-C | Cytarabine |