Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
CHIRALITY AND SURFACE TWIST OF DNA WRAPPED ON PROTEIN SURFACES
Autore:
WHITE JH; BAUER WR;
Indirizzi:
UNIV CALIF LOS ANGELES,DEPT MATH LOS ANGELES CA 90024 SUNY STONY BROOK,SCH MED,DEPT MICROBIOL STONY BROOK NY 11794
Titolo Testata:
Journal of biomolecular structure & dynamics
fascicolo: 4, volume: 12, anno: 1995,
pagine: 815 - 826
SICI:
0739-1102(1995)12:4<815:CASTOD>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEOSOME;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
J.H. White e W.R. Bauer, "CHIRALITY AND SURFACE TWIST OF DNA WRAPPED ON PROTEIN SURFACES", Journal of biomolecular structure & dynamics, 12(4), 1995, pp. 815-826

Abstract

The surface twist, STw, is a measure of the component of duplex twistassociated with the trajectory of the DNA axis wrapped on a protein surface. We calculate STw for various surfaces of revolution, includingthe cylinder and truncated paraboloid, ellipsoid, and hyperboloid of revolution. We show that the sign of STw cannot be stated unequivocally from knowledge of the chirality of the wrapping but depends also upon the nature of the wrapping (protein) surface. We define and discuss three geometric classes. Class (1) includes the cylinder, certain types of convex paraboloids, all concave paraboloids, the prolate ellipsoid, and the hyperboloid; here STw > O for right-handed wrapping and STw< O for left-handed wrapping. Class (2) is the sphere, for which STw = O for both types of handedness. Case (3) includes oblate ellipsoids and some regions of convex paraboloids; here STw < O for right handed wrapping and STw > O for left-handed wrapping.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 13:47:43