Reference: Katayama T and Torigoe H (2008) The interaction between the purine motif triplex and the triplex DNA-binding domain of Saccharomyces cerevisiae Stm1 protein. Nucleic Acids Symp Ser (Oxf) 111-2

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Abstract


Saccharomyces cerevisiae Stm1 protein (273 amino acids) is a purine motif triplex DNA-binding protein. We have previously found that Stm(1-113) (amino acids 1-113) is the minimal domain to specifically bind with the purine motif triplex. Here, to reveal the triplex recognition mechanism of Stm(1-113), we have examined the interaction between Stm(1-113) and each of the purine motif triplexes with various lengths and base sequences. As the length of the target triplex was increased, the binding affinity of Stm(1-113) to the target triplex was increased. Stm(1-113) had the ability to bind to the purine motif triplexes with various base sequences. We conclude that Stm(1-113) may recognize the shape of the triplex rather than the base sequence of the triplex.

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Journal Article
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Katayama T, Torigoe H
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