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Hum Genet. 1993 Jun;91(5):433-8.

Structure and expression analysis of a member of the human glutamate dehydrogenase (GLUD) gene family mapped to chromosome 10p11.2.

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  • 1Institute of Molecular Biology and Biotechnology, University of Crete, Greece.


Glutamate dehydrogenase (GLUD) is a key metabolic enzyme of the mitochondrion, playing an important role in mammalian neuronal transmission. GLUD deficiency has been associated with certain forms of neurodegeneration in the human cerebellum. Genomic DNA blot hybridization analysis and identification of a large number of GLUD-specific genomic clones have suggested that human GLUD is encoded by a multigene family consisting of at least six members. A functional GLUD gene, GLUD1, has been mapped to chromosome 10q22.3-23 and a full-length "processed" GLUD gene, GLUDP1, to chromosome Xq22-23. In the context of studing the structure, the role, and the chromosomal organization of the other family members, we have analysed in detail, a cosmid clone solely reactive with the 3' region of the GLUD cDNA. Structure and expression analysis of its GLUD-specific region suggests that it represents a truncated "processed" GLUD pseudogene. Fluorescence in situ hybridization using the entire cosmid as a probe, mapped this GLUD gene locus, termed GLUDP5, to chromosome 10p11.2.

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