摘要:
A L(+)-tartrate dehydrogenase with L(+)-tartrate dehydrogenase and D(+)-malate dehydrogenase (decarboxylating) activity, which can be obtained from Rhodopseudomonas sphaeroides, and also a process for the production thereof.Furthermore, a process and a reagent for the determination of L(+)-tartrate and of D(+)-malate.
摘要:
The present invention provides a method of use for a hydrogen peroxide-forming oxidase, wherein the enzyme is obtained from Streptomycetaceae and at 25.degree. C., in 0.15 mol/liter potassium phosphate (pH 7.9), in the presence of surface-active substances, still shows after 2 days an activity of at least 40% of the initial activity. This enzyme is useful in the determination of sarcosine, creatine and creatinine.
摘要:
The present invention provides a new pyruvate oxidase which decarboxylates pyruvate with the formation of hydrogen peroxide, characterized in that it is active without the addition of FAD, TPP and divalent metal ions.The present invention also provides a process for preparing this new enzyme and a reagent containing it.
摘要:
The present invention concerns the use of compounds of the general formula I ##STR1## for the preparation of medicaments for the treatment of viral or retroviral infections, whereby R signifies a hydrogen atom or a straight-chained or branched, saturated or unsaturated alkyl radical with 1-7 carbon atoms, which can possibly be substituted by phenyl, or a phenyl ring which can possibly be substituted one or more times by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, hydroxyl, trifluoromethyl, methylsulphonyl or halogen, such as fluorine, chlorine or bromine, n stands for the numbers 0, 1 or 2, as well as of their pharmacologically compatible salts or tautomers.
摘要:
There is described the use of pyrrothine derivatives of the general formula I ##STR1## wherein R.sub.1 and R.sub.3 signify hydrogen or methyl, R.sub.2 hydrogen, methyl or an acyl group with 1 to 5 carbon atoms and X and Y signify hydrogen, an equivalent of a physiolgically acceptable cation or together a single bond, for the inhibition of the allergen-induced degranulation of peripheral leukocytes.
摘要:
A method and an apparatus for correcting the unbalance present in a rotor in one or several correction steps by adding or removing material only to or from given points on the rotating body on which only a limited quantity of material is available for correction, with the unbalance being resolved into components as given by the design of the rotor, with correction being carried out in one of several given components, and with the unbalance determined being eliminated in the given components as to the possibility permitting the least quantity of material to be added or removed in a minimum number of correction runs, so that finally an uninterrupted sequence of correction points is available on the rotor.
摘要:
In a process for the determination of total or bound cholesterol by liberating any bound cholesterol using cholesterol esterase and simultaneously or subsequently determining the liberated cholesterol and any initially free cholesterol with a cholesterol reacting enzyme, the improvement comprising using as the cholesterol reacting enzyme an NAD or NADP-dependent cholesterol dehydrogenase obtained from an anaerobic microorganism, e.g., Eubacterium sp. ATCC 21408, or from mammalian tissue, e.g., liver.
摘要:
The present invention provides a hydrogen peroxide-forming sarcosine oxidase, wherein it is obtainable from Streptomycetaceae and at 25.degree. C. in 0.15 mol/liter potassium phosphate (pH 7.9), in the presence of surface-active substances, still shows after 2 days an activity of at least 40% of the initial activity.
摘要:
The present invention provides a process for the determination of .beta.-lactamases by the use of 7-cyanoacetylaminocephalosporanic acid and measurement of the colored material thereby formed, wherein ammonium ions are added to the material to be tested, together with phosphate ions and/or an agent splitting off oxygen.The present invention also provides a reagent for the determination of .beta.-lactamases based upon 7-cyanoacetylaminocephalosporanic acid, which reagent additionally contains ammonium ions, together with phosphate ions and/or an agent splitting off oxygen.