Coinheritance of either neonatal severe hyperparathyroidism or sucrase−isomaltase deficiency and alkaptonuria provided a candidate location for the mutated genes on chromosome 3. Homozygosity mapping with polymorphic loci identified a 16 centiMorgan region on chromosome 3q2 that contains the alkaptonuria gene.
www.nature.com/ng/journal/v5/n2/abs/ng1093-201.html
Alkaptonuria is an inherited condition that causes urine to turn black when exposed to air. Ochronosis, a buildup of dark pigment in connective tissues such as cartilage and skin, is also characteristic of the disorder. ... Mutations in the HGD gene cause alkaptonuria.
ghr.nlm.nih.gov/condition=alkaptonuria ghr.nlm.nih.gov/condition=alkaptonuria
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unknown in terms of who carries the gene for alkaptonuria. ... John is homozygous and inherited one copy of the alkaptonuria gene from each parent. ...
www.dnaftb.org/dnaftb/concept_13/con13problem.swf
Beltrán-Valero de Bernabé D., Peterson P., Luopajarvi K., Matintalo P., Alho A., Konttinen Y., Krohn K., Rodríguez de Córdoba S., Ranki A. (1999) Mutational analysis of the HGO gene in Finnish alkaptonuria patients.
www.alkaptonuria.cib.csic.es/alkaptonuria.htm www.alkaptonuria.cib.csic.es/alkaptonuria.htm
Mutations in the HGD gene can cause the rare disorder alkaptonuria. The gene usually produces an enzyme that breaks down a substance called homogentisic acid.
www.dnalc.org/view/15398-Chromosome-3-gene-associated-w... www.dnalc.org/view/15398-Chromosome-3-gene-associated-with-alkaptonuria-Matt-Ridley.html
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pmj.bmj.com/cgi/content/full/80/946/493
How common is alkaptonuria? ... Mutations in the HGD gene cause alkaptonuria. ... The HGD gene provides instructions for making an enzyme called homogentisate oxidase. This enzyme helps break down the amino acids phenylalanine and tyrosine, which are important building blocks of proteins. Mutations in the HGD gene impair...
www.medicinenet.com/alkaptonuria/article.htm www.medicinenet.com/alkaptonuria/article.htm
A defect in the HGD gene causes alkaptonuria. ... Alkaptonuria is inherited, which means it is passed down from parents to their children. To get this disease, each of your parents must pass you a copy of the faulty HGD gene.
www.umm.edu/ency/article/001200.htm
AIMS: To assess the involvement of the recently identified human homogentisate 1,2-dioxygenase gene (HGO) in alkaptonuria (AKU) in two unrelated patients with ochronosis of the conjunctiva, sclera, and cornea. ... To Print: Click your browser's PRINT button. ... Fragments showing aberrant mobility were directly sequenced.
www.medscape.com/medline/abstract/10340975?prt=true