A-DNA | definition of A-DNA by Medical dictionary
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a form of DNA in which the helix is right handed and the overall appearance is short and broad.
A DNA DNA which is structurally similar to B- and Z-DNA, has a right-handed helical structure, but is shorter, more compact and occurs only in dehydated DNA samples. It is one of several double-helical forms of DNA, which can also be assumed by DNA-RNA hybrid helices and by regions of double-stranded RNA.
A-DNA a configuration of DNA in which the helix is right-handed and there is a complete turn about every 11th NUCLEOTIDE. See DNA STRUCTURE.
References in periodicals archive
Helix geometry and hydration in A-DNA
, B-DNA, and Z-DNA.