Table 2.

CPP classification based on physicochemical properties.

Cell-Penetrating Peptides
Cationic			Amphipathic			Hydrophobic
Name(origin)	Cargo	Ref.	Name(origin)	Cargo	Ref.	Name(origin)	Cargo	Ref.
Diatos Peptide Vectors (DPV)	siRNA	[60]	MPG	pDNA siRNA	[61,62]	C105Y	pDNA	[63,64,65,66]
HIV-1 twinarginine translocation (TAT)	pDNA siRNA	[67,68,69,70,71,72,73,74]	Transportan	pDNA siRNA	[72,75,76]	K-FGF	pDNA	[77]
arginine-rich peptides	pDNA siRNA	[78,79,80,81,82]	NickFect (NF)	pDNA siRNA	[83,84,85,86]	Bip	pDNA	[87]
Polyarginine	pDNA	[75,76,88,89,90]	PepFect (PF)	pDNA mRNA	[91,92]	Melittin-derived peptides	siRNA	[93]
Penetratin	pDNA	[94,95,96]	MAP	siRNA	[97]
L5a	pDNA	[98,99]	Crotamine	pDNA	[100,101,102]
			VP22	pDNA	[103,104]
Protamine	pDNA mRNA	[105,106,107,108,109]	Antennapedia (Antp)	AON siRNA	[110,111]
			Pep-1	pDNA	[112,113]
			CADY	siRNA	[114,115,116]
			FGF	pDNA	[77]
			pVEC	pDNA	[117,118]