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Gene. 2006 Jun 7;374:50-7. Epub 2006 Mar 3.

A physiological mechanism to regulate D-aspartic acid and NMDA levels in mammals revealed by D-aspartate oxidase deficient mice.

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1
Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.

Abstract

Free D-aspartic acid and NMDA are present in the mammalian central nervous system and endocrine glands at significant concentrations, but their physiological role is still matter of debate. The only enzyme known to metabolize in vitro selectively these D-amino acids is D-aspartate oxidase (DDO). To clarify the role in vivo of the enzyme, we generated mice with targeted deletion of Ddo gene by homologous recombination. Mutated animals showed increased amounts of both D-aspartic acid and NMDA in all tissues examined demonstrating a physiological role of DDO in the regulation of their endogenous levels.

PMID:
16516413
DOI:
10.1016/j.gene.2006.01.010
[Indexed for MEDLINE]
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