1.
Phys Rev B Condens Matter
; 51(20): 14598-14603, 1995 May 15.
Article
in English
| MEDLINE
| ID: mdl-9978394
2.
Phys Rev B Condens Matter
; 51(4): 2357-2362, 1995 Jan 15.
Article
in English
| MEDLINE
| ID: mdl-9978989
3.
Phys Rev B Condens Matter
; 50(8): 5628-5634, 1994 Aug 15.
Article
in English
| MEDLINE
| ID: mdl-9976907
4.
Phys Rev B Condens Matter
; 45(15): 8634-8637, 1992 Apr 15.
Article
in English
| MEDLINE
| ID: mdl-10000701
5.
Ultramicroscopy
; 34(3): 141-7, 1990 Dec.
Article
in English
| MEDLINE
| ID: mdl-2288035
ABSTRACT
In this report, we present the first observations of uncoated poly((dA-dT).(dA-dT)) molecules organized in a liquid crystalline phase induced by the binding of a histone H1 peptide. The effect of the peptide on the polymer condensation is clearly illustrated on the large-scale STM images which reveal a well defined spacing between parallel DNA helices. High resolution images of rare isolated molecules of poly((dA-dT).(dA-dT)) exhibit two sets of helical pitch values, 6 and 7.5 nm. While the lower value can be correlated with the pitch of poly((dA-dT).(dA-dT)), the larger one may arise from peptide binding in the polymer minor groove.