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Blood, 15 June 2004, Vol. 103, No. 12, pp. 4669-4671.
Prepublished online as a Blood First Edition Paper on February 24, 2004; DOI 10.1182/blood-2004-01-0072.

Submitted January 8, 2004
Accepted February 11, 2004
Genetic abnormalities and juvenile hemochromatosis: mutations of the HJV gene encoding hemojuvelin
Pauline L Lee, Ernest Beutler*, Sreenivas V Rao, and James C Barton
Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
Carolina Health Care, Florence, SC, USA
Southern Iron Disorders Center, Birmingham, AL, USA
* Corresponding author; email: beutler{at}scripps.edu.
Juvenile hemochromatosis is an early-onset form of iron storage disease characterized by hypogonadotrophic hypogonadism and cardiomyopathy. Recently the putative causative gene (LOC148738) encoding a protein designated hemojuvelin was cloned. The previously proposed designation of this gene as HFE2 is contrary to established convention, because it is not a member of the HFE family, and we suggest that it be designated HJV. We sequenced this gene in members of two previously reported kinships that manifest typical juvenile hemochromatosis. In one kinship, two previously undescribed mutations of HJV were identified, C80R and L101P. In the second kinship, two previously identified mutations, G320V and I222N, were found These studies confirm that mutations in HJV cause juvenile hemochromatosis.

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