Description:
HEMOCHROMATOSIS, NEONATAL
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Repository
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NIGMS Human Genetic Cell Repository
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| Subcollection |
Heritable Diseases
Pharmacogenetics |
| Class |
Disorders of Metal Metabolism |
| Alternate IDs |
GM17095 [HEMOCHROMATOSIS, NEONATAL] |
| Quantity |
25 µg |
| Quantitation Method |
Please see our FAQ |
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Biopsy Source
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Peripheral vein
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Cell Type
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B-Lymphocyte
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Tissue Type
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Blood
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Transformant
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Epstein-Barr Virus
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Sample Source
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DNA from LCL
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Race
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White
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Ethnicity
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PORTUGUESE
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Family Member
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3
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Relation to Proband
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father
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Confirmation
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Clinical summary/Case history
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Species
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Homo sapiens
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Common Name
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Human
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Remarks
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| IDENTIFICATION OF SPECIES OF ORIGIN |
Species of Origin Confirmed by Nucleoside Phosphorylase, Glucose-6-Phosphate Dehydrogenase, and Lactate Dehydrogenase Isoenzyme Electrophoresis |
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| HLA TYPING |
HLA type is A2,B7/A1,B35 (DR3,DRw8) |
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| Gene |
CYP2D6 |
| Chromosomal Location |
22q13.1 |
| Allelic Variant 1 |
124030.0001; DEBRISOQUINE, POOR METABOLISM OF |
| Identified Mutation |
IVSDS3, G>A, +1; This allelic variant is also known as CYP2D6*4 or CYP2D6(B). In 20 individuals with poor metabolism of debrisoquine (608902), Gough et al. (Nature 347: 773-776, 1990) identified a G-to-A transition at the first nucleotide of exon 4 in the CYP2D6 gene, resulting in a shift of the splice site and introduction of a premature termination codon. The mutant protein had no residual activity. Gough et al. (1990) presented preliminary data suggesting a reduction in the proportion of poor metabolizers among patients with lung or bladder cancer. |
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| Gene |
CYP2D6 |
| Chromosomal Location |
22q13.1 |
| Allelic Variant 2 |
124030.0002; DEBRISOQUINE, POOR METABOLISM OF |
| Identified Mutation |
DEL; This allelic variant is also known as CYP2D6*5 and CYP2D6(D). In 1 of 42 poor metabolizer individuals (608902), Gough et al. (Nature 347:773-776, 1990) found homozygous deletion of the CYP2D locus. In a poor metabolizer, Gaedigk et al. (Am J Hum Genet 48:943-950, 1991) identified a homozygous 11.5-kb deletion associated with deletion of the entire CYP2D6 gene and total absence of P4502D6 protein in the liver. |
| Remarks |
Clinically unaffected; 2 children have neonatal hemochromatosis; HLA type: A2, B7/A1,B35;DR3,DRw8; normal levels of serum iron, iron binding capacity, transferrin and ferritin levels but persistently abnormal liver function tests |
| Yang Z, Yang X, Sun Y, Wang Y, Song L, Qiao Z, Fang Z, Wang Z, Liu L, Chen Y, Yan S, Guo X, Zhang J, Fan C, Liu F, Peng Z, Peng H, Sun J, Chen W, Test development, optimization and validation of a WGS pipeline for genetic disorders BMC medical genomics16:74 2022 |
| PubMed ID: 37020281 |
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| Driscoll, Neonatal hemochromatosis: Evidence for autosomal recessive transmission. Am J Hum Genet43 Sup:A232 (1988):74 1988 |
| PubMed ID: 37020281 |
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