Results 21 to 30 of about 130,955 (165)

Structure and mechanism of acetolactate decarboxylase [PDF]

open access: yes, 2013
Acetolactate decarboxylase catalyzes the conversion of both enantiomers of acetolactate to the (R)-enantiomer of acetoin, via a mechanism that has been shown to involve a prior rearrangement of the non-natural (R)-enantiomer substrate to the natural (S ...
Victoria A. Marlow   +9 more
core   +1 more source

Arginine Metabolism and Its Potential in Treatment of Colorectal Cancer

open access: yesFrontiers in Cell and Developmental Biology, 2021
Colorectal cancer is the leading cause of death from cancer globally. The current treatment protocol still heavily relies on early detection and surgery.
Tao Du, Junyi Han
doaj   +1 more source

Screening and Production of Fungal Arginine Degrading Enzymes and Testing Their Effects in Auxotrophic Cancers [PDF]

open access: yesInternational Journal of Medical Arts
The aim of the work: Finding and evaluating fungal arginine-degrading enzymes from various Egyptian soil habitats as anticancer mediators against auxotrophic cancer cells was the goal.
Mohammed Kassab
doaj   +1 more source

L-arginine deprivation impairs Leishmania major-specific T-cell responses. [PDF]

open access: yes, 2009
The amino acid L-arginine plays a crucial role in the regulation of immune responses. We have recently shown that uncontrolled replication of Leishmania parasites at the site of pathology correlates with high levels of arginase activity in nonhealing ...
Markus Munder   +7 more
core   +1 more source

Development of a Pseudomonas aeruginosa Agmatine Biosensor

open access: yesBiosensors, 2014
Agmatine, decarboxylated arginine, is an important intermediary in polyamine production for many prokaryotes, but serves higher functions in eukaryotes such as nitric oxide inhibition and roles in neurotransmission.
Adam Gilbertsen, Bryan Williams
doaj   +1 more source

Plasma arginine vasopressin concentrations in epileptics under monotherapy [PDF]

open access: yes, 1983
Plasma arginine vasopressin concentrations were determined by radio-immunoassay in 112 adult epileptics who were taking carbamazepine, phenytoin, primidone, or sodium valproate in long-term monotherapy, and in 19 controls.
Rascher, W.   +5 more
core   +1 more source

Partial cloning and characterization of an arginine decarboxylase in the kidney [PDF]

open access: yes, 1995
Partial cloning and characterization of an arginine decarboxylase in the kidney. Using homology-based polymerase chain reaction (PCR) amplification, we demonstrate the presence of arginine decarboxylase mRNA in tissues involved in arginine metabolism ...
Klahr, Saulo   +3 more
core   +1 more source

Differential impact of L-arginine deprivation on the activation and effector functions of T cells and macrophages. [PDF]

open access: yes, 2008
The metabolism of the amino acid L-arginine is emerging as a crucial mechanism for the regulation of immune responses. Here, we characterized the impact of L-arginine deprivation on T cell and macrophage (MPhi) effector functions: We show that whereas L ...
Corset, C   +20 more
core   +1 more source

Cysteine Thioaldehydes: Photolytic Generation, Reactivity, and Biological Implications

open access: yesAngewandte Chemie, EarlyView.
Photolysis of cysteine phenacylsulfides bearing non‐conjugating electron‐withdrawing substituents leads to high conversions into cysteine thioaldehydes through a Norrish type‐II pathway. This methodology enabled the study of the aqueous reactivity of these important biosynthetic intermediates, which, depending on peptide sequence, pH and buffer ...
Ardra Karthika   +9 more
wiley   +2 more sources

Pyruvoyl dependent arginine decarboxylases from Chlamydiae and Crenarchaea [PDF]

open access: yes, 2008
textArginine decarboxylase is a key enzyme involved in the polyamine pathway of organisms. Pyruvoyl-dependent arginine decarboxylases are expressed in the form of proenzymes that self-cleave to form N-terminal [beta] and C-terminal [alpha] subunits ...
Giles, Teresa Neelima
core   +1 more source

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