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  • Title: Members of the human glyceraldehyde-3-phosphate dehydrogenase-related gene family map to dispersed chromosomal locations.
    Author: Benham FJ, Povey S.
    Journal: Genomics; 1989 Aug; 5(2):209-14. PubMed ID: 2793178.
    Abstract:
    Several highly homologous glyceraldehyde-3-phosphate dehydrogenase (GAPD)-related sequences have been identified previously in human DNA by Southern blot analysis. Protein studies have identified only a single expressed locus for this major glycolytic enzyme, and this maps to chromosome 12p13. Sequence analysis of a GAPD muscle cDNA clone and a GAPD-related clone retrieved from an X-chromosome recombinant library showed that the latter was a processed pseudogene that maps to Xp11-p21. In this study, we have determined the chromosomal locations of several of the additional GAPD-related human sequences using a short 3' end sequence from the cDNA to probe DNA from a series of human-rodent somatic cell hybrids on Southern blots. Eight HindIII GAPD-related sequences detected at high stringency have been mapped to 6 different chromosomes. Several of the additional sequences detected at more moderate stringency have been localized to a further 10 chromosomal sites. Together, these sites constitute the known expressed locus, the known X-linked pseudogene, and 15 GAPD-like loci.
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