Abstract:Shelterin plays critical roles in maintaining and protecting telomeres by regulating access of various physiological agents to telomeric DNA. We present single molecule measurements investigating the impact of the POT1 and a four-component shelterin complex on the accessibility of human telomeric DNA overhangs with physiologically relevant lengths (28-150 nt), which to our knowledge is the first direct approach to measure this effect on such telomeric constructs. To quantify telomere accessibility, we monitore… Show more
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