| DFRET | donor-normalized FRET |
| FRET | Förster-resonance-energy-transfer |
| FRETmax | plateau level of DFRET |
| Kaapp | apparent affinity |
| PPI | protein–protein interaction |
| PEX | Peroxin |
| PTS | Peroxisomal targeting signal |
| TPR | tetratricopeptide |
| z | stoichiometry factor of the complex |