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Figure 1
(a) The triangular spiral staircase arrangement of helices indicative of the armadillo repeat. (b) Ribbon diagram of His-YIIIM5AII. The His6 tag, YIII-type, M-type and AII-type repeats are shown in magenta, green, blue and orange, respectively. (c) Sequence alignment of N-caps with and without a 3C protease cleavage site (the scissile bond is indicated by a grey arrow), internal repeats and C-­caps. Residues distinguishing different repeat versions are highlighted in red.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
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