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. 2009 Jul 23;106(31):12861–12866. doi: 10.1073/pnas.0902386106

Fig. 1.

Fig. 1.

Known basket, hybrid-1, and hybrid-2 triple quartet forms of human telomeric DNA that could be adopted by Tel22. The numbering system for the bases starts from 1 in the human telomere sequence d(TTAGGG)n. The loops are numbered sequentially, and dark and light gray boxes represent syn and anti guanines, respectively.