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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Developmental changes in the expression of parkin and UbcR7, a parkin-interacting and ubiquitin-conjugating enzyme, in rat brain.

Parkin is a product of the Park2 gene the mutation of which causes autosomal recessive juvenile parkinsonism (AR-JP) characterized by selective dopaminergic neuronal death and absence of Lewy bodies. Recently we found that parkin is directly linked to the ubiquitin (Ub)-proteasome pathway as a Ub-protein ligase (E3) collaborating with a Ub-conjugating enzyme (E2) UbcH7. Here we analysed by in situ hybridization the expression of mRNAs for parkin and UbcR7 (rat orthologue of human UbcH7) in the developing rat brain. Parkin mRNA increased in parallel with neuronal maturation, but was unevenly distributed in various brain regions after four postnatal days. The expression pattern of the UbcR7 mRNA was almost identical to that of the parkin mRNA in all cases examined. Both parkin and UbcR7 mRNAs were distributed in neurones but not glial cells. Our findings indicate that parkin is expressed not only in the substantia nigra, but also uniformly in various brain regions in a development-dependent manner. Co-expression of UbcR7 with parkin suggests that UbcR7 may interact with parkin in vivo for ubiquitination of yet unidentified target protein(s).[1]

References

  1. Developmental changes in the expression of parkin and UbcR7, a parkin-interacting and ubiquitin-conjugating enzyme, in rat brain. Wang, M., Suzuki, T., Kitada, T., Asakawa, S., Minoshima, S., Shimizu, N., Tanaka, K., Mizuno, Y., Hattori, N. J. Neurochem. (2001) [Pubmed]
 
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