PA	protective antigen
DARPin(s)	designed ankyrin repeat protein(s)
CD	circular dichroism
LF	lethal factor
EF	edema factor
AEBSF	4-(2-aminoethyl) benzenesulfonyl fluoride
IMAC	immobilized metal ion affinity chromatography
CV	column volume
MRE	mean residue ellipticity
Dm	denaturation midpoint
SPR	surface plasmon resonance
EpCAM	epithelial cell adhesion molecule
LFN	lethal factor 1–254
BirA	biotin ligase derived from E. coli
dest	destabilized
JNKs	c-Jun N-terminal kinases
GdnHCl	guanidine hydrochloride
IR	internal repeats
CL	cytosolic localization