Rice A, Chard T
Clin Chim Acta. 1983 Jul 15;131(3):289-94. doi: 10.1016/0009-8981(83)90098-0.
We describe a method for the preparation of purified PP5 suitable for use as a tracer ligand in RIA. The method is based on the observation that PP5 will bind to heparin and employs a heparin-Sepharose column as a key step in the procedure.