[RASMB] low Mw peptide

[Jacob Lebowitz]

Heather,

A belated response to your analysis of a low Mw peptide. You might consider 
a sedimentation velocity experiment for the peptide using Peter Schucks 
program Sedfit to determine Mw by fitting for s and D. Lamm equation 
fitting worked very well for small peptides, see Schuck et al. 1998 
Biophys. J. 466-474. The paper came before Peter developed sedfit. I 
presume that you have Sedfit, if not go to 
www.analyticalultracentrifugation.com.
Jacob Lebowitz, PhD
Molecular Interactions Resource
Division of Bioengineering and Physical Science, ORS
National Institutes of Health
Mail: Bldg. 13 Rm. 3N17
Office Bldg. 13 Rm. 3E49
13 South Drive
Bethesda, MD 20892 - 5766
Tel: (301) 435-1955
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email: lebowitz at helix.nih.gov