Table 1.

Molecular structure of some cell-penetrating peptides (CPPs) referred to in the present review.

CPPs	Structure/Sequence	Ref.
TAT	GRKKRRQRRRP	[4]
R8	RRRRRRRR	[15]
TGN	TGNYKALHPHNG	[16]
Derived Ku-70	VPMLK	[17]
RW(n)	RW(n)	[18]
CPP (RRRRRRGGRRRRG)	RRRRRRGGRRRRG	[19]
SVS-1	KVKVKVKVDPPTKVKVKVK-NH2	[20]
L-CPP	LAGRRRRRRRRRK	[21]
RLW	RLWMRWYSPRTRAYG	[22]
K16ApoE	KKKKKKKKKKKKKKKKLRVRLASHLRKLRKRLLRDA	[23]
Angiopep-2	TFFYGGSRGKRNNFKTEEY	[24]
ACPP	EEEEEEEEPLGLAGRRRRRRRRN	[12]
KAFAK	KAFAKLAARLYRKALARQLGVAA	[25]
hCT (9–32)	LGTYTQDFNKFHTFPQTAIGVGAP	[26]
VP22	DAATATRGRSAASRPTQRPRAPARSASRPRRPVE	[27]