| AAV | adeno-associated virus |
| Al | aluminium |
| AMPK | adenosine monophosphate-dependent protein kinase |
| ATF4 | activating transcription factor |
| BCS | bathocuproine disulphonate |
| BiP | binding immunoglobulin protein |
| Cer | ceramide |
| Cnc | cap-n-collar |
| CNS | central nervous system |
| CRISPR | clustered, regularly interspaced, short palindromic repeat |
| Cu | copper |
| CyaY | Escherichia coli frataxin homolog |
| Da | daughterless |
| DamID | targeted DNA adenine methyltransferase identification |
| DFOB | desferrioxamine B |
| DFP | deferiprone |
| dhCer | dihydroceramide |
| dhSph | dihydrosphingosine |
| DMT1 | divalent metal transporter-1 |
| DN | dentate nucleus |
| DRG | dorsal root ganglia |
| DTT | dithiothreitol |
| eIF2α | α subunit of eukaryotic translation initiation factor 2 |
| EMS | ethyl methanesulfonate |
| ER | endoplasmic reticulum |
| ETC | electron transport chain |
| Fe | iron |
| Fe–S | iron–sulfur |
| FFA | free fatty acid |
| fh | frataxin homolog |
| FLP/FRT | flippase and flippase recognition target |
| FRDA | Friedreich’s ataxia |
| FXN | human frataxin |
| GAA | guanine-adenine-adenine |
| GC/MS | gas chromatography coupled with mass spectrometry |
| Grx1 | glutaredoxine |
| GSH | reduced glutathione |
| GSSG | oxidized glutathione |
| HIFs | hypoxia inducible factors |
| HRE | hypoxia responsive element |
| HSAN1 | hereditary sensory and autonomic neuropathy type 1 |
| IREs | iron responsive elements |
| IRP-1A | iron regulatory protein 1A |
| KO | knock-out |
| lace | palmitoyltransferase |
| MAMs | mitochondria-associated membranes |
| Marf | mitofusin |
| MCK | muscle creatine kinase |
| Mef-2 | myocyte enhancer factor-2 |
| Mn | manganese |
| MPP | mitochondrial processing peptidase |
| Mvl | Malvolio |
| PBA | 4-phenylbutyric acid |
| Pdk1 | protein kinase-1 |
| PNS | peripheral nervous system |
| PPARγ | peroxisome proliferator-activated receptor gamma |
| RNAi | RNA interference |
| ROS | reactive oxygen species |
| SOD1 | cytosolic superoxide dismutase |
| SOD2 | mitochondrial superoxide dismutase |
| Sph | sphingosine |
| SREBP1 | sterol-responsive element-binding protein 1 |
| TPEN | N,N,N′,N′-tetrakis(2-pyridinylmethyl)-1,2-ethanediamine |
| Tsf | transferrins |
| TTM | tetrathiomolybdate |
| TUDCA | tauroursodeoxycholic acid |
| UAS | upstream activating sequence |
| Yfh1 | yeast frataxin homolog 1 |
| Zn | zinc |