Z-DNA crystallography

We review the effect of sequence on the structure of left‐handed Z‐DNA in single crystals. The various substituent groups that define a nucleotide base as guanine, cytosine, thymine, or adenine affect both the DNA conformation and the organization of solvent around the duplex. These are discussed in...

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Bibliographic Details
Published in:BIOPOLYMERS NUCLEIC ACID SCI 1997, Vol.44 (1), p.65-90
Main Authors: Ho, P. Shing, Mooers, Blaine H. M.
Format: Article
Language:English
Subjects:
Base Composition
Base Sequence
conformation
Crystallization
Crystallography, X-Ray
DNA, Z-Form - chemistry
genomic sequences
hydration
Models, Molecular
Nucleic Acid Conformation
nucleotide
polymers
single crystals
Z-DNA
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Summary:We review the effect of sequence on the structure of left‐handed Z‐DNA in single crystals. The various substituent groups that define a nucleotide base as guanine, cytosine, thymine, or adenine affect both the DNA conformation and the organization of solvent around the duplex. These are discussed in terms of their effect on the ability of sequences to adopt the unusual Z‐DNA structure. In addition, the experimental and theoretical methods used to treat DNA hydration are discussed as they relate to the stability of Z‐DNA. Finally, we argue that Z‐DNA, as defined by the crystal conformation, is sufficient in itself to account for the physical properties of left‐handed conformations observed in polymers and in genomic sequences. © 1997 John Wiley & Sons, Inc. Biopoly 44: 65–90, 1997
ISSN:0006-3525
1097-0282
DOI:10.1002/(SICI)1097-0282(1997)44:1<65::AID-BIP5>3.0.CO;2-Y