Zur Kenntnis des intermediären Stoffwechsels des Histidins. 5. Mitteilung

Edlbacher, S.; Bidder, H. von

doi:10.1515/bchm2.1942.273.4-5.163

Hoppe-Seyler´s Zeitschrift für physiologische Chemie

1942

DOI: 10.1515/bchm2.1942.273.4-5.163

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Zur Kenntnis des intermediären Stoffwechsels des Histidins. 5. Mitteilung

S. Edlbacher¹,

H. von Bidder²

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1943

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Cited by 13 publications

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“…As in most earlier studies, no urocanic acid was excreted after histidine was fed to dogs or injected in large doses into rabbits (143) or guinea pigs (145). Contrary to the report (146) that uro canic acid is formed as an intermediate by histidase none could be detected upon incubating histidine with liver tissue (143). However, aqueous liver extracts converted urocanic acid to a substance from which one equivalent of ammonia was liberated by strong alkali, but only a trace by sodium carbonate (143).…”

supporting

confidence: 66%

“…Contrary to the report (146) that uro canic acid is formed as an intermediate by histidase none could be detected upon incubating histidine with liver tissue (143). However, aqueous liver extracts converted urocanic acid to a substance from which one equivalent of ammonia was liberated by strong alkali, but only a trace by sodium carbonate (143). The responsible enzyme (urocanicase) and histidase were each nearly completely separable from the other.…”

contrasting

confidence: 61%

contrasting

confidence: 38%

“…Histidine .-Several papers concerning the role of urocanic acid in histidine metabolism have only recently become available (143,144,145). As in most earlier studies, no urocanic acid was excreted after histidine was fed to dogs or injected in large doses into rabbits (143) or guinea pigs (145).…”

mentioning

confidence: 99%

“…The responsible enzyme (urocanicase) and histidase were each nearly completely separable from the other. The action of the histidase on histidine was depressed by the addition of urocanic acid (144), d-histidine, or pyruvic acid ( 143), but the action of urocanicase on urocanic acid was unaffected by the addition of either 1-(144) or d-histidine, or pyruvic acid (143).…”

mentioning

confidence: 99%

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The Metabolism of Proteins and Amino Acids

Berg¹

1944

Annu. Rev. Biochem.

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In the compilation of this review an attempt has been made to give appropriate recognition· to the current interest in normal and emer gency nutrition, by discussing such aspects as the amino acid needs of the human subject, the synthesis of blood proteins, intravenous ali mentation, and the use of urea by ruminants. References to papers in the fields of plant and bacterial metabolism have been largely omitted. During the year many delayed foreign journals have become available, but their arrival has been erratic and it has not been possible to fill some of the gaps. Throughout the review 1 and d have been used in the configurational sense.Essential amino acids.-The amino acid requirements for main tenance in the adult human subject have recently been tested with protein hydrolyzates and with mixtures of purified amino acids as the chief or sole source of protein nitrogen. Studies of the former type have come chiefly from the laboratory of Holt. Nitrogen equilibrium was readily maintained on an enzymic hydrolyzate of casein, but this was not possible with acid-hydrolyzed casein until tryptophan . �had been added (1, 2). Two other acid hydrolyzates were prepared, one from casein which had been deaminized to destroy the lysine (3) and the other from casein which had been oxidized with hydrogen perox ide (4, 5) to convert the methionine to the corresponding biologically inactive sulfone (6) which was removed as the insoluble calcium sul fonate. From the latter preparation most of the residual cystine was also removed by adsorption on norit. When the former hydrolyzate was fed in diets fortified with tryptophane, equilibrium was not at tained until lysine was added (7, 8). Supplementation of the latter hydrolyzate with tryptophane, methionine, and cystine provided a mix ture adequate for maintenance. Removal of the methionine produced negative nitrogen balances and loss of body weight; its restoration re-established nitrogen equilibrium in a few days, but did not increase the body weight. 0 The inconsistent results obtained by the omission of cystine were considered to suggest that cystine was essential, but this conclusion was t.bought to require confirmation (9). An abstract 239 Annu. Rev. Biochem. 1944.13:239-262. Downloaded from www.annualreviews.org Access provided by Technische Universiteit Eindhoven on 02/02/15. For personal use only.Quick links to online content Further ANNUAL REVIEWS

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supporting

confidence: 66%

contrasting

confidence: 61%

contrasting

confidence: 38%

mentioning

confidence: 99%

mentioning

confidence: 99%

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The Metabolism of Proteins and Amino Acids

Berg¹

1944

Annu. Rev. Biochem.

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Über den oxydativen Abbau des Histidins im tierischen Organismus

Edlbacher

Grauer

1943

Helvetica Chimica Acta

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Zur Kenntnis des Abbaues der Aminosäuren im tierischen Organismus. 10. Über das Verhalten von d‐ und l‐Histidin im Organismus der Ratte

Schmid

1946

Helvetica Chimica Acta

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Volumen XXIX, Fasciculus v (1946). 979 Analyse eines aus Hauttalg gewonnenen 2,4-Dinitro-phenylhydrazons des Acroleins : 3,303 mg Substanz gaben 0,695 cm3 N, (190, 739 mm). CgH,O,N, Ber. N 23,73 Gef. N 23,92%Aquivalentgewichtsbestirnmungen der Fettsauren. Es wurde eine modifizierte Ausfiihrung der F . Pregl'schen Mikromethodel) angewendet: 0,02-n. NaOH und HCI in 70-proz. Alkohol; Titration heiss von sauer nach alkalisch; cc-Naphtolphtalein als Indikator. Zur Vertreibung des Kohlendioxyds wird zuerst ein kleiner uberschuss an Lauge zugegeben, dann 0,2 om3 Saure und hernach nach Auskochen genau titriert bis zur Blaufarbung. Einwagen 5-15 mg Fettsaure. Benzoesaure als Urtitersubstanz.

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Zur Kenntnis des intermediären Stoffwechsels des Histidins. 5. Mitteilung

Cited by 13 publications

References 0 publications

The Metabolism of Proteins and Amino Acids

The Metabolism of Proteins and Amino Acids

Über den oxydativen Abbau des Histidins im tierischen Organismus

Zur Kenntnis des Abbaues der Aminosäuren im tierischen Organismus. 10. Über das Verhalten von d‐ und l‐Histidin im Organismus der Ratte

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