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ferredoxin/leucèmia
L'enllaç es desa al porta-retalls
9 resultats
Structural and mutational analysis of the SBDS protein family. Insight into the leukemia-associated Shwachman-Diamond Syndrome.
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Shwachman-Diamond Syndrome (SDS) is an autosomal recessive disorder characterized by bone marrow failure with significant predisposition to the development of poor prognosis myelodysplasia and leukemia, exocrine pancreatic failure and metaphyseal chondrodysplasia. Although the SBDS gene mutated in
Molecular cytogenetic delineation of a novel critical genomic region in chromosome bands 11q22.3-923.1 in lymphoproliferative disorders.
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Aberrations of the long arm of chromosome 11 are among the most common chromosome abnormalities in lymphoproliferative disorders (LPD). Translocations involving BCL1 at 11q13 are strongly associated with mantle cell lymphoma. other nonrandom aberrations, especially deletions and, less frequently,
An emerging view of vitamin D.
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Vitamin D3 (D2 is 22-ene,24-methyl D3) is a prehormone which is hydroxylated by mixed function mono-oxygenase NADPH-cytochrome P-450 ferredoxin/ferredoxin reductase systems in liver parenchyma and renal proximal tubular cells to 25-hydroxy, then 1,25-dihydroxyvitamin D, the active hormone.
Characteristics of the 25-hydroxyvitamin D3- and 1,25-dihydroxyvitamin D3-24-hydroxylase(s) from HL-60 cells.
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1,25-Dihydroxyvitamin D3 induces the human promyelocyte leukemia cell line, HL-60, to differentiate into macrophages/monocytes via a steroid-receptor mechanism. This system is a relevant one for an investigation of the molecular mechanism of 1,25-dihydroxyvitamin D3. We have now examined the effect
Probing the role of the carboxyl terminus of the gp91phox subunit of neutrophil flavocytochrome b558 using site-directed mutagenesis.
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Site-directed mutagenesis was used to generate a series of substitutions and deletions in the carboxyl-terminal 11 residues of gp91phox, the 91-kDa subunit of the phagocyte NADPH oxidase flavocytochrome b558. This region encompasses 559RGVHFIF565, implicated as a contact point for the cytosolic
Cytotoxicity of natural hydroxyanthraquinones: role of oxidative stress.
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In order to assess the role of oxidative stress in the cytotoxicity of natural hydroxyanthraquinones, we compared rhein, emodin, danthron, chrysophanol, and carminic acid, and a series of model quinones with available values of single-electron reduction midpoint potential at pH 7.0 (E(1)7), with
Nitroaromatic betulin derivatives as redox cycling agents.
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We have synthesized nitroaromatic derivatives of triterpenoid betulin (lup-20(29)-ene-3 beta, 28-diol), betulin-(28)-5'-(aziridin-1-yl)-2',4'-dinitrobenzoate and betulin-(28)-5'-nitro-2'-furoate. These compounds were reduced in single-electron way by ferredoxin: NADP+ reductase and flavocytochrome
The rhombotin family of cysteine-rich LIM-domain oncogenes: distinct members are involved in T-cell translocations to human chromosomes 11p15 and 11p13.
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A chromosomal translocation in a T-cell leukemia involving the short arm of human chromosome 11 at band 11p15 disrupts the rhombotin gene. This gene encodes a protein with duplicated cysteine-rich regions called LIM domains, which show homology to zinc-binding proteins and to iron-sulfur centers of
A systematic review of p53 regulation of oxidative stress in skeletal muscle.
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BACKGROUND
p53 is a tumor suppressor protein involved in regulating a wide array of signaling pathways. The role of p53 in the cell is determined by the type of imposed oxidative stress, its intensity and duration. The last decade of research has unravelled a dual nature in the function of p53 in
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