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  • 1
    Electronic Resource
    Electronic Resource
    Hydrogenation of Vitamin B 1 (1936)
    [s.l.] : Nature Publishing Group
    Nature 138 (1936), S. 1097-1098 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN treated with platinum-black or with hydro-sulphite, vitamin B1 is easily reduced. Crystalline preparations from Hoffmann-La Roche and from I. G. Farben were used. They gave identical results. Hydrogenation with platinum-black was measured in Warburg-Barcroft manometers. In ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1381097b0
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  • 2
    Electronic Resource
    Electronic Resource
    Oxidative Inactivation of Co-zymase with Schardinger Enzyme Preparations (1935)
    [s.l.] : Nature Publishing Group
    Nature 136 (1935), S. 913-914 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN continuation of experiments showing that a reversible oxidative inactivation of glycolysis or fermentation (Pasteur reaction) may take place1, the action of Schardinger enzyme (xanthine oxidase) on fermentation was tried. Schardinger enzyme was prepared from milk by the method ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/136913b0
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  • 3
    Electronic Resource
    Electronic Resource
    Pyruvic Acid Dehydrogenation, Vitamin B 1 and Cocarboxylase (1937)
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 25-25 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT had been found by Davis1 that pyruvic acid is oxidized by the acetone preparation of Bacterium Delbrückii. This preparation has proved to be very useful for a closer study of pyruvic acid dehydrogenation2. A codehydrase could be removed from the acetone ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/140025a0
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  • 4
    Electronic Resource
    Electronic Resource
    Biochemistry: Coupling between Pyruvic Acid Dehydrogenation and Adenylic Acid Phosphorylation (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 281-281 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A NEW coupling of oxidoreduction and phosphorylation, with thiamin (vitamin B1) pyrophosphate as a link of the reaction chain, was found with dry preparations of Bacterium Delbrückii (Acidificans longissimum). Phosphorylation of added adenylic acid occurs when pyruvic acid is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/143281a0
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  • 5
    Electronic Resource
    Electronic Resource
    A Coloured Intermediate on Reduction of Vitamin B 1 (1937)
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 849-849 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A VERY distinct green yellowish colour appears when vitamin B1(synthetic, I. G. Farben.), in a 0.5—1 per cent solution, is reduced with hydrosulphite in the manner described in a previous note1. The intensity of the colour is highest at the beginning, declines with the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/140849c0
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  • 6
    Electronic Resource
    Electronic Resource
    Flavin Component of the Pyruvic Acid Oxidation System (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 436-436 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EVIDENCE for the earlier suggested1 participation of a flavin compound in pyruvic acid oxidation by Bacterium Delbrückii has been obtained by a procedure similar to that used by Warburg and Christian2 to remove the prosthetic group (flavin-adenin dinucleotide) from ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/143436a0
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  • 7
    Electronic Resource
    Electronic Resource
    Metallic Compounds of Protein (1938)
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 463-464 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE experiments of which an account is given below were all made in co-operation with Dr. Hans Jesserer in the Institute for Medical Chemistry, University of Vienna. The work has been based upon the study of the biuret reaction of proteins, which has been known since 1833; thus all the experiments ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/142463a0
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  • 8
    Electronic Resource
    Electronic Resource
    Sugar Content of the Hormones of the Pituitary Anterior Lobe and of the Gonadotropic Hormone from Pregnancy Urine (1938)
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 115-116 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING our investigation of the active principles of the pituitary anterior lobe and of the gonadotropic hormone from pregnancy urine, we established the fact that the gonad-stimulating factors of the anterior lobe and, more particularly, prolan from pregnancy urine, contain considerable ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/142115b0
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  • 9
    Electronic Resource
    Electronic Resource
    Role of Phosphate in Pyruvic Acid Dehydrogenation (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 381-382 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING earlier work1 on the problem of pyruvic acid dehydrogenation with Bacterium acidificans longissimum (Delbrückii), it was found that in the absence of inorganic phosphate no reaction took place, and at low concentrations of phosphate the rate of dehydrogenation was ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144381b0
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  • 10
    Electronic Resource
    Electronic Resource
    Fermentation of Phosphogluconic Acid (1936)
    [s.l.] : Nature Publishing Group
    Nature 138 (1936), S. 588-589 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN their fundamental researches, Warburg and his co-workers1 have described in detail the enzymatic oxidation of glucosemonophosphate to phosphogluconic acid. Furthermore, they found that the oxidation product is easily fermented by yeast macerate. Now, phosphogluconic acid might ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/138588a0
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