A型DNA

取自 食品百科全书

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06:43 2010年6月25日的修订版本

中文名称: A型DNA[*]

英文名称: A-form DNA

别 名: A-DNA,右手螺旋DNA

词 性: 名词

中文解释:

DNA双螺旋结构的一种构象。相邻碱基对之间相距0.27nm,在75%相对湿度条件下,DNA分子每匝螺旋有11个碱基对,碱基平面与螺旋成20度角。

英文解释:

A-DNA is one of the many possible double helical structures of DNA. A-DNA is thought to be one of three biologically active double helical structures along with B- and Z-DNA. It is a right-handed double helix fairly similar to the more common and well-known B-DNA form, but with a shorter more compact helical structure.