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. Author manuscript; available in PMC: 2013 Mar 4.
Published in final edited form as: Science. 2012 Jan 5;335(6069):720–723. doi: 10.1126/science.1215670

Fig. 1.

Fig. 1

Structure of the TAL repeats in DNA-free dHax3. (A) The 11 TAL repeats of dHax3 form a right-handed superhelical assembly. Two perpendicular views are presented with the RVDs highlighted in red in the right image. (B) All TAL repeats exhibit a nearly identical conformation. Each repeat is organized into short (a) and long (b) α helices connected by a short loop where the two (RVDs at positions 12 and 13 are located. All structure figures were prepared with PyMOL (30). Single-letter abbreviations for the amino acid residues are as follows: A, Ala; C, Cys; D, Asp; E, Glu; F, Phe; G, Gly; H, His; I, Ile; K, Lys; L, Leu; M, Met; N, Asn; P, Pro; Q, Gln; R, Arg; S, Ser; T, Thr; V, Val; W, Trp; and Y, Tyr.