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Article . 1966 . Peer-reviewed
License: Springer TDM
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Der Tryptophanabbau bei Endomycopsis Vernalis und Anderen Hefen

Authors: Karl-Werner Glombitza; Thomas Hartmann;

Der Tryptophanabbau bei Endomycopsis Vernalis und Anderen Hefen

Abstract

1. Nach Verfutterung von d,l-Tryptophan (d,l-Try) und anderen Indolkorpern an Oberflachenkulturen von Endomycopsis vernalis konnten folgende Abbauprodukte nachgewiesen werden: Nα-Acetyl-tryptophan (Ac-Try), β-(Indolyl-3-)brenztraubensaure (IBS), β-(Indolyl-3-) milchsaure (IMS), α-(Indolyl-3-)essigsaure (IES), Indol-3-carbonsaure (ICS), β-(Indolyl-3-)athanol (β-IA), Indol-3-aldehyd (IAld). Der Nachweis von Indolyl-3-acetaldehyd (IAAld) gelang nur in Versuchen mit zellfreien Extrakten. 2. IMS wurde praparativ isoliert und mit Hilfe chemischer und physikalischer Methoden identifiziert. Sowohl die Verfutterung von d- als auch von l-Try lieferten ausschlieslich l-(-)-Indolylmilchsaure. 3. Der erste Schritt im Try-Abban ist eine Transaminierung, die zur Bildung von IBS fuhrt. Die NH2-Gruppe kann sowohl auf α-Ketoglutarsaure als auch auf Phenylbrenztraubensaure ubertragen werden. 4. Eine quantitative Bestimmung der Try-Abbauprodukte mit Hilfe von 14C(3-Alanyl)-d,l-Try ergab, das der uberwiegende Teil des Try zu IMS abgebaut wird. Es folgen in abnehmendem Mengenverhaltnis: Ac-Try, IES, β-IA, ICS, IAld. 5. Auf Grund der Ergebnisse wird angenommen, das folgende Reaktionen im Try-Abbau bei Endomycopsis physiologisch, d.h. enzymatisch bedingt sind: Try→IBS→IAAld→β-IA sowie Try→Ac-Try und IBS→IMS.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
48
Average
Top 1%
Top 10%
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