| ALS | Amyotrophic Lateral Sclerosis |
| APE1 | Apurinic/Apyrimidinic Endonuclease 1 |
| ATF4 | Activating Transcription Factor 4 |
| ATF5 | Activating Transcription Factor 5 |
| BER | Base Excision Repair pathway |
| C9ORF72 | Chromosome 9 Open Reading Frame 72 |
| CCCP | Carbonyl Cyanide m-Chlorophenylhydrazone |
| CHOP | C/EBP Homologous Protein (DDIT3) |
| CLPP | Caseinolytic mitochondrial matrix peptidase proteolytic subunit |
| DMEM | Dulbecco’s Modified Eagle Medium |
| DNA polymerase γ | Mitochondrial DNA polymerase gamma |
| eIF2α | Eukaryotic Initiation Factor 2 alpha |
| ER | Endoplasmic Reticulum |
| ETC | Electron Transport Chain |
| FBS | Fetal Bovine Serum |
| FOXO3A | Forkhead Box O3 |
| GFP | Green Fluorescent Protein |
| LC3 | Microtubule-associated protein 1 light chain 3 |
| LONP1 | Lon Peptidase 1 Mitochondrial |
| MIC10 | MICOS Complex Subunit MIC10 (C1ORF151) |
| MIC60 | MICOS Complex Subunit MIC60 (IMMT) |
| MICOS | Mitochondrial Contact Site and Cristae Organizing System |
| MQC | Mitochondrial Quality Control |
| mtDNA | Mitochondrial DNA |
| OGG1 | 8-Oxoguanine DNA Glycosylase 1 |
| PBS | Phosphate-Buffered Saline |
| PERK | Protein kinase R (PKR)-like endoplasmic reticulum kinase |
| PINK1 | PTEN-induced kinase 1 |
| qPCR | Quantitative Polymerase Chain Reaction |
| RIPA | Radioimmunoprecipitation Assay buffer |
| ROIs | Regions of Interest |
| ROS | Reactive Oxygen Species |
| SDS-PAGE | Sodium Dodecyl Sulfate–Polyacrylamide Gel Electrophoresis |
| SIRT3 | Sirtuin 3 |
| SOD1 | Superoxide Dismutase 1. |
| TARDBP | TAR DNA Binding Protein gene |
| TBS-T | Tris-Buffered Saline with Tween 20 |
| TDP-43 | TAR DNA-binding protein 43 |
| TEM | Transmission Electron Microscopy |
| TOM20 | Translocase of Outer Mitochondrial Membrane 20 |
| TRAP1 | TNF Receptor Associated Protein 1 |
| UPRER | Endoplasmic Reticulum Unfolded Protein Response |
| UPRmt | Mitochondrial Unfolded Protein Response |