It is suggested that for transcription to be possible, the pitch angle of B-DNA must be smaller than the angle of zero-twist. At the zero-twist angle the double helix is maximally rotated and its strain-twist coupling vanishes. A numerical estimate of the pitch angle for B-DNA based on...
pitch of the DNA double helix [Wang, J. (1979) Proc. Natl. Acad. Sci. USA 76, 200-203; Trifonov, E. & Bettecken, T. (1979) Biochemistry 18, 454-456] is interpreted as a reflection of the deformational anisotropy of the DNA molecule that facilitates its smooth folding in chromatin...
Design and Synthesis of Tight Pitch FLCs for Analog Voltage-Limited Electro-Optic Modulators The goal of this project was to make liquid crystal materials suitable for use a deformable-helix ferroelectric liquid crystal (DHFLC) device for analog li... WN Thurmes - Final Report, 30 Sep. 1991...
aDNA in its relaxed (ideal) state usually assumes the B configuration, a right-handed 20A diameter helix in which the nucleotide base planes are nearly perpendicular to the helix axis, with a vertical distance of 3.4 A between them and with10 base pairs per helix turn, giving a "pitch" ...
High resolu- tion atomic force microscopy of DNA: the pitch of the double helix. FEBS Lett 1995;371:279-282.Mou J, Czajkowsky DM, Zhang Y, Shao Z. High-resolution atomic-force microscopy of DNA: the pitch of the double helix. FEBS Lett. 1995; 371:279-82. [PubMed: 7556610]...
We find that, with the former sample, the measured width of the DNA is about 2 nm, the known DNA diameter, and there is a clear height modulation along the length of the DNA with a periodicity of about 3.4 nm, in excellent agreement with the known pitch of the double helix. This ...
Beyond the helix pitch: direct visualization of native DNA in aqueous solution. The DNA double helix was first elucidated by J.D. Watson and F.H.C. Crick over a half century ago. However, no one could actually "see" the well-known stru... S Ido,K Kimura,N Oyabu,... - 《Acs Nan...
1) DNA pitch DNA螺距2) DNA double helix DNA双螺旋 1. The discovery of the model of DNA double helix structure was considered to be a 20th century life Science s greatest achievements. DNA双螺旋结构模型的发现是20世纪生命科学最伟大的成就。 2. In 25,April,1953,the paper discovering DNA ...
By virtue of Finite Element Method DEFORM-3D software and rolling experiment,the effect rules were analyzed in detail,which include the rule of tooth top slope of dies to dimensions(such as tooth height,screw pitch) of trapezia helix tooth shaft and the rule of the tooth top slope to the ...
In these systems, size polydispersity is quenched by the synthesis procedure and usually does not depend on the thermodynamic state of the system. Similar to chiral chromonics [28], nanometric chiral building blocks, such as short-fragment DNA [29,30], may reversibly polymerize into chiral ...