منابع مشابه
5-Aminolevulinic acid synthesis in Escherichia coli.
A hemA mutant of Escherichia coli containing a multicopy plasmid which complemented the mutation excreted 5-aminolevulinic acid (ALA) into the medium. [1-14C]glutamate was substantially incorporated into ALA by this strain, whereas [2-14C]glycine was not. Periodate degradation of labeled ALA showed that C-5 of ALA was derived from C-1 of glutamate. The synthesis of ALA by two sonicate fractions...
متن کامل5-Aminolevulinic acid synthesis in epimastigotes of Trypanosoma cruzi.
BACKGROUND AND AIMS Trypanosoma cruzi is the causative agent of Chagas disease or American trypanosomiasis. The parasite manifests a nutritional requirement for heme compounds because of its biosynthesis deficiency. The aim of this study has been to investigate the presence of metabolites and enzymes of porphyrin pathway, as well as ALA formation in epimastigotes of T. cruzi, Tulahuén strain, T...
متن کاملPorphyrin Synthesis from 5-Aminolevulinic Acid in Patients with Glioma
The molecule 5-aminolevulinic acid (5-ALA) is a substrate for a heme synthesized in cells us‐ ing succinyl CoA and glycine. Initially, 5-ALA is converted to porphobilinogen (PBG), and the metabolism progresses by the action of PBG deaminase, and its product is incorporated into the mitochondria via uroporphyrinogen and coproporphyrinogen by an enzymatic reaction and transformed into protoporphy...
متن کاملThe Enzymatic Synthesis of s=Aminolevulinic Acid*
The details of this condensation and the mechanisms involved were not elucidated until very recently. In the last few months, several laboratories have independently reported their preliminary findings demonstrating the enzymatic synthesis of 6aminolevulinic acid. We have found that particle-free extracts of Rhodopseudomonas spheroides and Rhodosp&%llum rubrum cells grown anaerobically in the l...
متن کاملEffect of Silver Nanoparticles on Improving the Efficacy of 5-Aminolevulinic Acid-Induced Photodynamic Therapy
Introduction: The most important limitation of 5-aminolevulinic acid (5-ALA)-induced photodynamic therapy (PDT) is the efficacy of the cells in converting 5-ALA to protoporphyrin IX. The present study aimed to investigate the effectiveness of silver nanoparticles (AgNPs) with the photosensitivity at the surface plasmon resonance wavelength on 5-ALA-mediated PDT. Material and Methods: First of a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1991
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.55.1687