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Journal articles
Purification of A-form DNA fibre samples by removal of B-form DNA residues
Abstract : To date, fibre diffraction on A-form NaDNA has always shown a B-form contamination. Here, we have used optic microscopy, calorimetry and neutron scattering techniques to define a method to obtain DNA fibres samples whose molecules are purely in the A-form. When the impure sample is heated to 320 K, the DNA molecules in the B-form undergo a transition into the A-form. Our studies have modified the accepted phase diagram for NaDNA films by including the dependence of temperature crucial for the purification of A-form samples by removal of B-form contamination.
keyword :
DNA
B-A transition
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00934635
Contributor : Michel Peyrard Connect in order to contact the contributor
Submitted on : Wednesday, January 22, 2014 - 1:46:51 PM
Last modification on : Tuesday, October 19, 2021 - 10:50:45 PM
Contributor : Michel Peyrard Connect in order to contact the contributor
Submitted on : Wednesday, January 22, 2014 - 1:46:51 PM
Last modification on : Tuesday, October 19, 2021 - 10:50:45 PM
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