Results 41 to 50 of about 84,609,228 (161)

Unstable Reaction Intermediates and Hysteresis during the Catalytic Cycle of 5-Aminolevulinate Synthase

open access: yesJournal of Biological Chemistry, 2014
Background: Aminolevulinate synthase (ALAS) catalyzes decarboxylative condensation of glycine with succinyl-CoA yielding 5-aminolevulinate. Results: Unstable ALAS-catalyzed reaction intermediates and conformational changes were characterized using ...
B. Stojanovski   +4 more
semanticscholar   +1 more source

Effect of dexamethasone on mRNA levels for 5-aminolevulinate synthase in different rat tissues

open access: yes, 1992
5-Aminolevulinate synthase mRNA levels from different tissues were quantitated by Northern blot hybridization analysis utilizing the rat liver 5-aminolevulinate synthase cDNA clone as probe.
May, BK   +3 more
core   +1 more source

Heme regulation in mouse mammary carcinoma and liver of tumor bearing mice-I. Effect of allyl-isopropylacetamide and veronal on δ -aminolevulinate synthetase, cytochrome P-450 and cytochrome oxidase [PDF]

open access: yes, 1990
1. 1. Basal levels and allyl-isopropylacetamide (AIA) or veronal induced levels of δ-aminolevulinate synthetase (ALA-S), cytochrome P-450 (cyt P-450) and cytochrome oxidase were determined in tumor (T) and liver of both normal mice (NM) and T bearing ...
Polo, C.F.   +3 more
core   +2 more sources

Catalytically active alkaline molten globular enzyme: Effect of pH and temperature on the structural integrity of 5-aminolevulinate synthase*

open access: yesBiochimica et Biophysica Acta, 2014
5-Aminolevulinate synthase (ALAS), a pyridoxal-5′phosphate (PLP)-dependent enzyme, catalyzes the first step of heme biosynthesis in mammals. Circular dichroism (CD) and fluorescence spectroscopies were used to examine the effects of pH (1.0–3.0 and 7.5 ...
B. Stojanovski   +4 more
semanticscholar   +1 more source

Nanomaterials for enhanced X‐ray‐triggered cancer therapy: Progress and prospects

open access: yesBMEMat, Volume 3, Issue 2, June 2025.
This review summarizes the latest progress in nanomaterials for X‐ray‐triggered cancer therapy, highlighting their various advantages such as targeted delivery, reduced side effects, and enhanced therapeutic efficacy. Abstract X‐rays, a form of ionizing radiation with high energy and significant penetration capability, are commonly used in clinical ...
Yuanchun Chen   +6 more
wiley   +1 more source

Red versus blue light illumination in hexyl 5-aminolevulinate photodynamic therapy: the influence of light color and irradiance on the treatment outcome in vitro

open access: yesJournal of Biomedical Optics, 2014
. Hexyl 5-aminolevulinate (HAL) is a lipophilic derivative of 5-aminolevulinate, a key intermediate in biosynthesis of the photosensitizer protoporphyrin IX (PpIX). The photodynamic efficacy and cell death mode after red versus blue light illumination of
L. Helander   +4 more
semanticscholar   +1 more source

Analyzing the role of ferroptosis in ribosome‐related bone marrow failure disorders: From pathophysiology to potential pharmacological exploitation

open access: yesIUBMB Life, Volume 76, Issue 12, Page 1011-1034, December 2024.
Abstract Within the last decade, the scientific community has witnessed the importance of ferroptosis as a novel cascade of molecular events leading to cellular decisions of death distinct from apoptosis and other known forms of cell death. Notably, such non‐ apoptotic and iron‐dependent regulated cell death has been found to be intricately linked to ...
Aliki Papadimitriou‐Tsantarliotou   +3 more
wiley   +1 more source

Molecular Expression and Characterization of Erythroid-Specific 5-Aminolevulinate Synthase Gain-of-Function Mutations Causing X-Linked Protoporphyria

open access: yesMolecular Medicine, 2013
X-linked protoporphyria (XLP) (MIM 300752) is a recently recognized erythropoietic porphyria due to gain-of-function mutations in the erythroid-specific aminolevulinate synthase gene (ALAS2).
D. Bishop   +3 more
semanticscholar   +1 more source

The hydroxypyridinone iron chelator CP94 increases methyl-aminolevulinate-based photodynamic cell killing by increasing the generation of reactive oxygen species. [PDF]

open access: yes, 2016
Methyl-aminolevulinate-based photodynamic therapy (MAL-PDT) is utilised clinically for the treatment of non-melanoma skin cancers and pre-cancers and the hydroxypyridinone iron chelator, CP94, has successfully been demonstrated to increase MAL-PDT ...
Y Dogra (21850751)   +5 more
core   +4 more sources

METHODS FOR THE IDENTIFICATION OF INHIBITORS OF ASPARAGINE SYNTHASE, 5-AMINOLEVULINATE SYNTHASE, HISTIDINOL-PHOSPHATASE, 3-ISOPROPYLMALATE AND THREONINE SYNTHASE AS ANTIBIOTICS [PDF]

open access: yes, 2003
The present inventors have discovered that Asparagine Synthase, 5- Aminolevulinate synthase, histidinol-phosphatase, 3-Isopropylmalate dehydratase and Threonine synthase are essential for fungal pathogenicity.

core   +2 more sources

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