Báo cáo khoa học: Molecular identification of monomeric aspartate racemase from Bifidobacterium bifidum
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Bifidobacteriumbifidumis a useful probiotic agent exhibiting health-promoting properties and containsD-aspartate as an essential component of the cross-linker moiety in the pepti-doglycan. To help understandD-aspartate biosynthesis in B. bifidumNBRC 14252, aspartate racemase, which cata-lyzes the racemization ofD-andL-aspartate, was purified to homogeneity and characterized. The enzyme was a mono-mer with amolecularmass of 27 kDa. This is the first report showing the presence of a monomeric aspartate racemase....
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