𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sedimentation coefficient of polyoma virus DNA

✍ Scribed by Horace B. Gray Jr.

Publisher
Wiley (John Wiley & Sons)
Year
1967
Tongue
English
Weight
557 KB
Volume
5
Category
Article
ISSN
0006-3525

No coin nor oath required. For personal study only.

✦ Synopsis

The sedimentation coefficient of the twisted circular form of polyoma virus DNA is calculat,ed from the Kirkwood sedimeiit,ation-diffrision eqiiat ion, the strrictiire being assumed to be a rigid donble superhelix. Agreement with the experimental sedimentation coefficient can be obt,ained, with the use of an experimental valiie for the number of SIIperhelical turns, when t,he pit,ch of the siiperhelix is intermediate between its minimal and maximal possible values. Another model, which has been proposed for polyoma DNA at low ionic strengths, may be visualized as a superhelical stxuctjrire woiind about a t~orns. Calculations of sedimentation coefficienk for this model agree qualitatively witth experiment,al dat2a at. ionic strengt,hs below 10-*M.

πŸ“œ SIMILAR VOLUMES

Sedimentation coefficient of T-even bact
Sedimentation coefficient of T-even bacteriophage DNA
✍ J. Rosenbloom; E. C. Cox πŸ“‚ Article πŸ“… 1966 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 585 KB

The sedimentation coefficient of T2 phage DNA has been studied by zone centrifugation in sector-shaped preparative centrifuge tubes over a concentration range of 0.02-2.0 rg./ml. DNA. These results have been compared to a similar study in the analytical centrifuge of T4 DNA over the range of 0.50-5.

Sedimentation coefficients of replicatin
Sedimentation coefficients of replicating and crosslinked DNA
✍ Victor A. Bloomfield πŸ“‚ Article πŸ“… 1968 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 415 KB

The sedimentation coefficients of branched and cyclic replicating DNA structures have been calculated taking into account both chain stiffness and excluded volume effects. For branched DNA, the calculated ratio So(a)/SO(0) of the sedimentation coefficient at degree of replication a to that a t a = 0

Sedimentation coefficients of DNA topois
Sedimentation coefficients of DNA topoisomers: The helical wormlike chain
✍ Jiro Shimada; Hiromi Yamakawa πŸ“‚ Article πŸ“… 1988 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 472 KB

## Synopsis The sedimentation coefficient sN of the DNA topoisomer with the linking number N is evaluated as a function of N and chain length on the basis of a (circular) twisted wormlike chain, i.e., a special case of the helical wormlike chain. Evaluation is carried out by an application of the

The evaluation of standard sedimentation
The evaluation of standard sedimentation coefficient in band sedimentation of macromolecules
✍ Mauro Belli πŸ“‚ Article πŸ“… 1973 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 971 KB

## Abstract Standardization in the calculation of the sedimentation coefficient of macromolecules by means of band techniques is discussed. When a sample of macromolecules suspended in a solvent is layered on to a denser bulk solution, the macromolecules do not sediment in this solution alone, but

Activation of carcinogenic polycyclic hy
Activation of carcinogenic polycyclic hydrocarbons in polyoma-virus-transformed cells as a prerequisite for polyoma virus induction
✍ Eliezer Huberman; Marian Fogel πŸ“‚ Article πŸ“… 1975 πŸ› John Wiley and Sons 🌐 French βš– 509 KB

## Abstract Polyoma‐virus (PV)‐transformed cell clones, which are inducible for virus synthesis by various physical and chemical agents, metabolize the chemically non‐reactive carcinogen benzo (a)pyrene (BP) into water‐soluble products. In cultures of such clones, which metabolize BP to a level of