Homeodomain proteins: an update.
Basel, Switzerland. In Chromosoma, Nov 2015
In animals, there are 16 major classes, ANTP, PRD, PRD-LIKE, POU, HNF, CUT (with four subclasses: ONECUT, CUX, SATB, and CMP), LIM, ZF, CERS, PROS, SIX/SO, plus the TALE superclass with the classes IRO, MKX, TGIF, PBC, and MEIS.
Penetratin Story: An Overview.
Paris, France. In Methods Mol Biol, 2014
Interestingly, the two most used CPPs, TAT and penetratin peptides, are derived from natural proteins, HIV Tat and Antennapedia homeoprotein, respectively.