Kaufman N, Wyllie J C, Newkirk M
Biochim Biophys Acta. 1977 May 26;497(3):719-27. doi: 10.1016/0304-4165(77)90293-8.
Acrylamide gel electrophoresis of microsomal protein obtained from rat small intestinal mucosal cells, after an injection of [3H]leucine, demonstrated increased quantities of two soluble iron-binding proteins during iron absorption, one with a high molecular weight (about 400 000) and the other of intermediate molecular weight (80 000). Both proteins were present in a ribosomal-enriched sub-fraction obtained during purification of the microsomal membrane but were not identified among the purified membrane proteins.
