摘要:
A novel alkaline protease promoter and alkaline protease terminator which each effectively function in a host-vector system of molds can be obtained from yellow koji mold. A gene expression unit comprising the promoter and terminator is used to construct an expression vector capable of expressing an useful substance in molds such as Aspergillus oryzae , Aspergillus niger , Aspergillus awamori , Aspergillus sojae , etc.
摘要:
The present invention provides a process for eliminating effectively ATP in a sample, using adenosine phosphate deaminase alone or in combination with at least one enzyme selected from the group consisting of apyrase, alkaline phosphatase, acid phosphatase, hexokinase and adenosine triphosphatase, a process for determining biological cells contained in foods and beverages in convenient and precise manner in combination with bioluminescence method, and a reagent for the determination thereof.
摘要:
A sample examining instrument comprising a test-tube-form measuring container storing therein a reaction reagent such as an emission reagent, and a reagent container inserted for burying into the upper opening of the measuring container, wherein sealants are pasted to the upper and lower portions of the reagent container and a reagent such as an extract liquid is sealed in the reagent container, whereby providing the sample examining instrument downsized due to the reagent container fitted into the measuring container.
摘要:
The present invention provides a process for eliminating effectively ATP in a sample, using adenosine phosphate deaminase alone or in combination with at least one enzyme selected from the group consisting of apyrase, alkaline phosphatase, acid phosphatase, hexokinase and adenosine triphosphatase, a process for determining biological cells contained in foods and beverages in convenient and precise manner in combination with bioluminescence method, and a reagent for the determination thereof.
摘要:
There is provided a bioluminescence reagent comprising at least pyruvate orthophosphate dikinase, phosphoenolpyruvic acid, pyrophosphoric acid, magnesium ion or another metallic ions, luciferin and luciferase, which reagent is such that the amount of luminescence is maintained in a high level and moreover stably without decaying for a long time in a bioluminescence reaction, and there is provided a method for quantitatively determining an adenosine phosphate ester or a substance taking part in the ATP conversion reaction in high sensitivity and high accuracy using an inexpensive and simple measuring apparatus.