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Alignment of the amino acid sequence of d-psicose 3-epimerase from A. tumefaciens (previously proposed as d-tagatose 3-epimerase) with that of d-tagatose 3-epimerase from P. cichorii. ATPE, A. tumefaciens d-psicose 3-epimerase (GenBank accession number AE008210); PCTE, P. cichorii d-tagatose 3-epimerase (GenBank accession number AB000361).
