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US5856108A Biosynthesis of diazomelanin and diazoluminomelanin and methods thereof 失效
重氮木兰素和二叠氮木兰素的生物合成及其方法

Biosynthesis of diazomelanin and diazoluminomelanin and methods thereof
摘要:
There is provided a method for producing diazoluminomelanin (DALM) which comprises culturing in a medium containing nitrate, 3-amino-L-tyrosine (3-AT) and luminol under suitable metabolic conditions, a microorganism containing nitrate reductase.Also provided is a method for directly detecting microorganisms containing nitrate reductase or those into which nitrate reductase can be introduced by recombinant DNA technology, which comprises culturing the microorganism in a medium containing nitrate, 3-amino-L-tyrosine (3-AT) and luminol under suitable metabolic conditions, transferring the medium to a microtiter plate or tube coated with antibody or an antiligand to which the microorganism would specifically bind, washing the plate or tube and activating luminescence.Further, there is provided a method for producing diazomelanin (DM) which comprises culturing in a medium containing nitrate and 3-amino-L-tyrosine (3-AT) under suitable metabolic conditions, a microorganism containing nitrate reductase.Yet further, there is provided a method for directly detecting microorganisms containing nitrate reductase or those into which nitrate reductase can be introduced by recombinant DNA technology, which comprises culturing the microorganism in a medium containing nitrate and 3-amino-L-tyrosine (3-AT) under suitable metabolic conditions, transferring the medium to a microtiter plate or tube coated with antibody or an antiligand to which the microorganism would specifically bind, washing the plate or tube, adding luminol and activating luminescence.
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