Table 1.
Tat peptides are linear and have amidated C-termini; kB1 peptides are backbone cyclic and have three disulfide bonds as depicted in Figure 1. Y (boxed) denotes a tyrosine with a chloroalkane tag coupled to its N-terminus. K (boxed) denotes a lysine coupled to a chloroalkane tag, and K (boxed, shaded) denotes a lysine coupled to an Alexa Fluor 488 tag.