Intrinsic factor-cobalamin receptor activity in a marsupial, the American opossum (Didelphis virginiana).

Abstract

1. Significant and specific binding of intrinsic factor-cobalamin occurred in proximal but not in the distal half of the intestine in an adult marsupial, the American opossum. 2. The purified opossum kidney receptor, like rat and canine kidney receptors, revealed a single band of M(r) approximately 230 on SDS-PAGE. However, unlike the rat and canine… (More)

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