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EC 5.1.3.30 Details
show Brenda entryEC number
5.1.3.30
Accepted name
D-psicose 3-epimerase
Reaction
D-psicose = D-fructose
Other name(s)
D-allulose 3-epimerase,
DPEase (ambiguous)
Systematic name
D-psicose 3-epimerase
Comment
The enzyme is highly specific for D-psicose and shows very low activity with D-tagatose (cf. EC 5.1.3.31, D-tagatose 3-epimerase). The enzyme from the bacterium Clostridium scindens requires Mn2+ [1], whereas the enzymes from the bacteria Clostridium cellulolyticum [2,5], Clostridium sp. BNL1100 [3], and Clostridium bolteae [4] require Co2+ as optimum cofactor. The enzyme from Ruminococcus sp. [6] is not dependent on the presence of metal ions, but its activity is enhanced by Mn2+.
History
created 2014
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1 Oxidoreductases
1.1.1 With NAD+ or NADP+ as acceptor
1.1.3.1 created 1961, deleted 1984 1.1.3.25 created 1986, deleted 2005 1.1.3.26 created 1989, deleted 2002 1.1.3.31 created 1992, deleted 2003 1.1.3.32 created 1999, deleted 2002 1.1.3.33 created 1999, deleted 2002 1.1.3.34 created 1999, deleted 2002 1.1.3.35 created 1999, deleted 2002 1.1.3.36 created 1999, deleted 2002
