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单词 Base stacking
释义

Base stacking

英语百科

Nucleic acid tertiary structure

(重定向自Base stacking)
Example of a large catalytic RNA.  The self-splicing group II intron from Oceanobacillus iheyensis.[1]
The structures of the A-, B-, and Z-DNA double helix structures.
RNA triplexesMajor groove triples in the group II intron in Oceanobacillus Iheyensis. Each stacked layer is formed by one triplex with a different color scheme. Hydrogen bonds between triplexes are shown in black dashed lines.

The tertiary structure of a nucleic acid is its precise three-dimensional structure, as defined by the atomic coordinates. RNA and DNA molecules are capable of diverse functions ranging from molecular recognition to catalysis. Such functions require a precise three-dimensional tertiary structure. While such structures are diverse and seemingly complex, they are composed of recurring, easily recognizable tertiary structure motifs that serve as molecular building blocks. Some of the most common motifs for RNA and DNA tertiary structure are described below, but this information is based on a limited number of solved structures. Many more tertiary structural motifs will be revealed as new RNA and DNA molecules are structurally characterized.

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更新时间:2025/6/18 4:21:32