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  • Title: Assignment of human xanthine dehydrogenase gene to chromosome 2p22.
    Author: Xu P, Zhu XL, Huecksteadt TP, Brothman AR, Hoidal JR.
    Journal: Genomics; 1994 Sep 01; 23(1):289-91. PubMed ID: 7829092.
    Abstract:
    Xanthine dehydrogenase (XDH, EC 1.1.1.204) oxidizes a variety of purines, pterins, and other heterogenic nitrogen compounds, serving as a rate-limiting enzyme in nucleic acid degradation. The genetic defect of XDH results in hereditary xanthinuria and other disorders in purine metabolism. Based on the cloning and sequencing results of human XDH cDNA in our laboratory, we studied the localization and sublocalization of the XDH gene. A Version 3.0 human-hamster somatic cell hybrid PCRable DNA panel and specific PCR primers derived from human XDH cDNA for amplification were used to assign the XDH gene to human chromosome 2. The fidelity of the PCR product was confirmed by nucleotide sequencing the PCR product. The assignment of the XDH gene to chromosome 2 at band p22 was established by fluorescence in situ hybridization on human metaphase chromosomes using a clone from a pWE 15 cosmid library containing the XDH gene. The results should be useful for further studies of the molecular basis for hereditary xanthinuria and other genetic disorders related to abnormal XDH activity.
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