The new heat-resistant phytase which possesses 2.1 crystalline structures

摘要

(57) Abstract The high affinity calcium region 3 and 3 low the heat-resistant enzyme which possesses 3 next crystalline structures of the propeller configuration which includes the affinity calcium region is offered inside 6 blades which consist of 4 - 5 anti parallel - strands. Six each blades consist of 4 or 5 anti parallel - strands, six calcium binding sites three high affinity calcium binding sites three consist of with the affinity binding site low, respectively, participate in the thermal stability and catalytic converter activity of the enzyme. Although the active site of the enzyme which aforementioned Ca²⁺ binding site motif, it is possible, to apply to the synthesis of the protein whose thermal stability quite is high in addition, is presumed from the tertiary structure and, the new enzyme which possesses the help and also this kind of enzyme active site of the protein engineering technology which recently progresses is created it is very useful.