Hemopexin (http://www.sigmaaldrich.com/catalog/product/sigma/H9291?lang=es®ion=ES <http://www.sigmaaldrich.com/catalog/product/sigma/H9291?lang=es®ion=ES>). I will send you the reprint of a book chapter where it is described separately. Best, xavier El 06/08/2012 16:32, Kay Diederichs escribió: > Dear all, > > a colleague needs a protein for a biophysical experiment. The > requirement is that the protein "looks like a disk", and that it can > be bought for a reasonable price. > > Is anyone aware of a commercially available protein of disk-like > shape? I am out of ideas of how to find this out myself, at least not > with reasonable effort ... > > thanks a lot, > > Kay --