X-ray diffraction study of polymorphism of the DNA double helix at protonation

Montrel', M.M.; Sukhorukov, B.I.

Biofizika 28(5): 875-876

1983


ISSN/ISBN: 0006-3029
PMID: 6639971
Document Number: 212887
X-ray diffractograms of DNA fibers have been obtained at various degrees of protonation (alpha). At the protonation degrees preceding acid denaturation, DNA double helix undergoes polymorphic transformation. At 75% relative humidity DNA helix of 11 : 1 type protonated up to alpha = 0.3 changes to 10 : 1 type.

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