Linked Life Data

162827

Source:http://linkedlifedata.com/resource/pubmed/id/162827

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1975-4-21
pubmed:abstractText
The diffusion constants of avian myeloblastosis virus (AMV) and murine leukemia virus (MuLV) (Rauscher) suspensions in buffer and in 30% sucrose were determined by laser beat frequency light scattering spectroscopy at a series of temperatures ranging rom 5 to 25 degrees. By the use of the Stokes-Einstein equation, the following hydrodynamic diameters are calculated at 20 degrees: MuLV, 154 plus or minus 3 nm in sucrose and 145 plus or minus 7 nm in buffer; AMV, 144 plus or minus 3 nm in sucrose and 138 plus or minus 4 nm in buffer. While the diameters measured in buffer were temperature independent, the diameters measured in sucrose decreased by about 20% as the temperature was raised from 5 to 25 degrees. The concentration of virus particles in the suspensions ranged from 10 7 to 10 9 particles/ml. The absolute particle concentrations are estimated within plus or minus 30% by determining the dilution needed to reach a concentration sufficiently low that the particle number fluctuation contribution was comparable to that of the interference scattering. Particle weights of 3.9 x 10 8 daltons for MuLV and 4.0 x 10 8 daltons for AMV were calculated from the diffusion constants and from our own experimentally determined sedimentation coefficients. From these particle weights and the hydrodynamic diameters of the viruses, we calculated the per cent of the hydrodynamic volume of the viruses which could be freely penetrated by water, viz., 57% for AMV and 69% for MuLV.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
134-41
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Hydrodynamic diameters of RNA tumor viruses. Studies by laser beat frequency light scattering spectroscopy of avian myeloblastosis and Rauscher murine leukemia viruses.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.