PPI	Protein–Protein Interaction
sGFP	superfolder GFP
eGFP	enhanced GFP
mCherry	monomeric Cherry
PCA	Protein Complementation Assays
DHFR	Dihydrofolate Reductase
nLuc	nanoLuc luciferase
L	large bit of the nanoLuc 18kDa
S	small bit of the nanoLuc 1.3kDa
G	anti-GFP nanobody
C	anti-Cherry nanobody
SLN	Split Luc Nanobody fusion peptide
GL	anti-GFP–Large bit
LG	Large bit–anti-GFP
CL	anti-Cherry–Large bit
LC	Large bit–anti-Cherry
GS	anti-GFP–Small bit
SG	small bit–anti-GFP
CS	anti-Cherry–Small bit
SC	Small bit–anti-Cherry
CFRS	anti-Cherry flexible-rigid linker small bit
LTE	Leishmania tarentolae Extract