[RASMB] COVOL3

[Stephen Harding]

Hello all
the latest version of COVOL is now downloadable from the ncmh software page, (the zipped file comes with readme instructions and a pdf of a related paper).
The new version COVOL3 runs from a Windows 98 or
XP environment, and predicts the 2nd virial coefficient B (exclusion volume and charge terms) from user supplied values of the triaxial dimensions or axial ratios (from e.g. crystal structure), molecular weight, vbar, hydration, valency and ionic strength.
http://www.nottingham.ac.uk/ncmh/unit/method.html#Software
 
It is helpful if you want to knock out the B term when dealing with molecular associations.
The simple MSTAR routine (model independent estimation of molecular weights from sedimentation equilibrium) can also now be downloaded from this page (complementing the more advanced ORIGIN version of Kristian Schilling and the model dependent NONLIN).
For those still interested in simple ellipsoid modelling of solution protein conformation (as opposed to the advanced bead models of Jose et alia) the ELLIPS suite of algorithms (ELLIPS1 for ellipsoid of revolution and ELLIPS2-4 for triaxials (with 2 unequal axial ratios) - all involving full solution of the elliptical integrals rather than approximate formulae) will also be downloadable in 98 & XP forms from that page shortly.
Steve
 
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Professor S.E. Harding
NCMH Physical Biochemistry Laboratory
University of Nottingham
School of Biosciences
Sutton Bonington 
LE12 5RD, UK
Tel: +44(0) 115-951-6148
Fax: +44(0) 115-951-6142
http://www.nottingham.ac.uk/biosciences/foodsci/academic/harding.html                         
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