Table 1.

Peptides used in this study.

Peptide	Description	Sequence	MW, Da
1	Linear Tat-based TM5	MNYMVYFNFFACVLVPLLLMLGVYLYGRKKRRQRRR-amide	4514.60
2	Cyclic Tat-like TM5 a	MNYMVYFNFFACVLVPLLLMLGVYL[KrRrGrKkRrE]-amide	4504.60
3	Linear Tat-based TM7	LWLMYLAIVLSHTNSVVNPFIYAYYGRKKRRQRRR-amide	4369.22
4	Cyclic Tat-like TM7 a	LWLMYLAIVLSHTNSVVNPFIYAY[KrRrGrKkRrE]-amide	4359.22

^a The sequence within brackets denotes intramolecular, amide bond cyclization between the Lys (K) and the C-terminal Glu (E) residues; N-terminus is acetylated.