Results 41 to 50 of about 504,978 (306)

Mutational analysis of the carbohydrate binding activity of the tobacco lectin [PDF]

open access: yes, 2010
At present the three-dimensional structure of the tobacco lectin, further referred to as Nictaba, and its carbohydrate-binding site are unresolved. In this paper, we propose a three-dimensional model for the Nictaba domain based on the homology between ...
Barre, Annick   +6 more
core   +2 more sources

Tryptophan metabolism drives dynamic immunosuppressive myeloid states in IDH-mutant gliomas

open access: yesNature Cancer, 2021
The dynamics and phenotypes of intratumoral myeloid cells during tumor progression are poorly understood. Here we define myeloid cellular states in gliomas by longitudinal single-cell profiling and demonstrate their strict control by the tumor genotype ...
M. Friedrich   +37 more
semanticscholar   +1 more source

Tryptophan Metabolism: A Link Between the Gut Microbiota and Brain.

open access: yesAdvances in Nutrition, 2019
The gut-brain axis (GBA) is a bilateral communication network between the gastrointestinal (GI) tract and the central nervous system. The essential amino acid tryptophan contributes to the normal growth and health of both animals and humans and ...
K. Gao, C. Mu, A. Farzi, Weiyun Zhu
semanticscholar   +1 more source

The role of human and microbial metabolites of triptophane in severe diseases and critical ill (review) [PDF]

open access: yesКлиническая практика, 2020
The growing interest to metabolites circulating in the blood is associated with the accumulation of factual material on the involvement of low-molecular compounds in the development of a number of serious diseases.
M. L. Getsina   +2 more
doaj   +1 more source

Kynurenine Pathway of Tryptophan Metabolism: Regulatory and Functional Aspects

open access: yesInternational Journal of Tryptophan Research, 2017
Regulatory and functional aspects of the kynurenine (K) pathway (KP) of tryptophan (Trp) degradation are reviewed. The KP accounts for ~95% of dietary Trp degradation, of which 90% is attributed to the hepatic KP.
A. Badawy
semanticscholar   +1 more source

Tryptophan depletion results in tryptophan-to-phenylalanine substitutants

open access: yesNature, 2022
Activated T cells secrete interferon-γ, which triggers intracellular tryptophan shortage by upregulating the indoleamine 2,3-dioxygenase 1 (IDO1) enzyme1–4.
Abhijeet Pataskar   +23 more
semanticscholar   +1 more source

Nanosensor detection of an immunoregulatory tryptophan influx/kynurenine efflux cycle.

open access: yesPLoS Biology, 2007
Mammalian cells rely on cellular uptake of the essential amino acid tryptophan. Tryptophan sequestration by up-regulation of the key enzyme for tryptophan degradation, indoleamine 2,3-dioxygenase (IDO), e.g., in cancer and inflammation, is thought to ...
Thijs Kaper   +5 more
doaj   +1 more source

Impact of the Gut Microbiota on Intestinal Immunity Mediated by Tryptophan Metabolism

open access: yesFrontiers in Cellular and Infection Microbiology, 2018
The gut microbiota influences the health of the host, especially with regard to gut immune homeostasis and the intestinal immune response. In addition to serving as a nutrient enhancer, L-tryptophan (Trp) plays crucial roles in the balance between ...
Jing Gao   +7 more
semanticscholar   +1 more source

Tryptophan metabolism: Mechanism-oriented therapy for neurological and psychiatric disorders

open access: yesFrontiers in Immunology, 2022
Neurological and psychiatric disorders are a category of chronic diseases that are widespread and pose serious mental and physical health problems for patients.
Dan Li   +12 more
semanticscholar   +1 more source

Metabolic and Stress Responses in Senegalese Soles (Solea senegalensis Kaup) Fed Tryptophan Supplements: Effects of Concentration and Feeding Period

open access: yesAnimals, 2019
The objective of this study was to assess the impact of different dietary Trp concentrations on the stress and metabolism response of juvenile Senegalese soles (Solea senegalensis).
Marcelino Herrera   +6 more
doaj   +1 more source

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