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Inherited disorders of cobalamin (Cbl, vitamin B12) metabolism are rare causes of megaloblastic anemia and neurologic abnormalities. More prevalent in certain ethnic groups, these disorders occur despite adequate Cbl intake and usually result from abnormal vitamin cell transport or processing. Cubilin (CUBN, intrinsic factor-cobalamin receptor) is the intestinal receptor for the endocytosis of intrinsic factor-vitamin B12. Its gene is localized to chromosome 10p13 and mutations involving CUBN have been described in patients with congenital megaloblastic anemia. In this report, we describe a novel CUBN pathogenic variant in a child with megaloblastic anemia. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.

Citation

Corey Falcon, Austin J Hamm, Geling Li, Jeffrey Lebensburger, Thomas H Howard, Ana C Xavier. Novel CUBN Mutation in a Young Child With Megaloblastic Anemia. Journal of pediatric hematology/oncology. 2021 May 01;43(4):e546-e549

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PMID: 33031161

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