CDF	cumulative distribution function
CH	charge-hydropathy
CHO	Chinese hamster ovary cells
EDTA	ethylenediaminetetraacetic acid
EPO	erythropoietin
FGF	fibroblast growth factor
HEK293	human embryonic kidney 293 cells
HEPES	4-(2-hydroxyethyl)piperazine-1-ethanesulfonic acid
G-CSF	granulocyte colony-stimulating factor
GH	growth hormone/somatotropin
GH-V	growth hormone variant
GM-CSF	granulocyte-macrophage colony-stimulating factor
IFN	interferon
IL	interleukin
LEP	leptin
M-CSF	macrophage colony-stimulating factor 1
NMR	nuclear magnetic resonance
PDB	protein data bank
PL	chorionic somatomammotropin hormone 1
PRL	prolactin
RAGE	receptor for advanced glycation end products
SCOP	structural classification of proteins
SDS–PAGE	sodium dodecyl sulfate–polyacrylamide gel electrophoresis
SPR	surface plasmon resonance
RU	resonance unit
THPO	thrombopoietin
TSLP	thymic stromal lymphopoietin
Δ42–4	human S100P mutant lacking PGFLQS sequence in the ‘hinge’ region
WT	wild-type protein