Cubilin is a protein that in humans is encoded by the CUBN gene. It is present upon the luminal surface of enterocytes of the ileum where it facilitates absorption of vitamin B12 by acting as a receptor for IF-cobalamin (intrinsic factor - vitamin B12) complexes, enabling endocytosis of complexes by means of amnionless (AMN).
Cubilin is a protein that in humans is encoded by the CUBN gene. It is present upon the luminal surface of enterocytes of the ileum where it facilitates absorption of vitamin B12 by acting as a receptor for IF-cobalamin (intrinsic factor - vitamin B12) complexes, enabling endocytosis of complexes by means of amnionless (AMN).
== Biochemistry ==
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).