Lyophilized from 0.02 M ammonium bicarbonate and may contain traces of buffer salts
Store at 2-8°C on dry atmosphere. After reconstitution with phosphate buffer, pH 7.0 (contains 0.15 M NaCl), aliquot and store at 2-8°C.
Universal Precautions. Safe laboratory practices should be used when handling this material.
By PAGE, the product shows one band at 660 kDa. Identity also confirmed by cellulose acetate electrophoresis that gives a single band with a1 electrophoretic mobility and also Ouchterlony Immunodiffusion. (Using the PAGE method, certain conditions can also show a sub-unit of thyroglobulin as a second band at 330 kDa.)