Table 2.

Peptides utilized in AuNPs delivery

Peptide sources	Peptide sequence	Localization of peptidyl-AuNPs in cell lines
		Cytoplasm	Nucleus
SV40 Large T NLS	CGGGPKKKRKVGG	Hela, 3T3/NIH, HepG2	HSC, HaCaTa
Adenoviral NLS	CGGFSTSLRARKA	3T3/NIH	Hela
Adenoviral RME	CKKKKKKSEDEYPYVPN	HepG2	N/Ac
Adenoviral fiber protein	CKKKKKKSEDEYPYVPNFSTSLRARKA	N/Ac	HepG2
HIV 1 Tat protein NLS	GRKKRRQRRR	Hela, HepG2	HFCb
Integrin binding domanin (RGD) + oligolysine residues	CKKKKKKGGRGDMFG	3T3/NIH	HeLa, HepG2
Synthetic RGD peptides	GRGDSP	HFCb	N/Ac

Abbreviations:

^aHaCaT, noncancerous human HaCaT cells;

^bHFC, human fibroblast cells;

^cN/A, not available.