نتایج جستجو برای: leishmania tarentolae
تعداد نتایج: 13657 فیلتر نتایج به سال:
PURPOSE Immunotherapy is one of the treatment strategies for breast cancer, the most common cancer in women worldwide. In this approach, the patient's immune system is stimulated to attack microscopic tumors and control metastasis. Here, we used interferon γ-induced protein 10 (IP-10), which induces and strengthens antitumor immunity, as an immunotherapeutic agent. We employed Leishmania tarent...
پروتئین فعال کننده پلاسمینوژن ( tpa) به عنوان عامل ترومبولیتیک برتر جهت درمان بیماریهایی نظیر انفارکتوس میوکارد حاد شناخته شده و امروزه بهبود ویژگیهای فارماکوکینتیک آن مورد توجه قرار گرفته است. reteplase(k2s) مشتقی از مولکول tpa می باشد که نیمه عمر و مقاومت آن به مهارکننده نسبت به مولکول tpa طبیعی افزایش چشمگیری را نشان می دهد. در این تحقیق هدف اصلی کلونینگ و بیان فرم k2s ژن tpa در سیستم یوکا...
Methionyl-tRNA synthetase (MetRS) has been chemically validated as a drug target in the kinetoplastid parasite Trypanosoma brucei. In the present study, we investigate the validity of this target in the related trypanosomatid Leishmania donovani. Following development of a robust high-throughput compatible biochemical assay, a compound screen identified DDD806905 as a highly potent inhibitor of...
A primer extension assay was used for the detection of uridine insertions occurring in vitro in synthetic pre-edited cytochrome b mRNA during incubation with a Leishmania tarentolae mitochondrial extract. Two different activities were detected that inserted uridines within the first two editing sites: one that is dependent on the secondary structure of the mRNA but is independent of both exogen...
Maxicircle DNA has been isolated from the kinetoplast DNA of Leishmania tarentolae culture forms by bouyant separation in CsCl in the presence of the A + T-binding dye Hoechst 33258, after liberation from the kinetoplast DNA network by cleavage with the single-hit restriction endonuclease EcoRI. The purified linearized maxicircle DNA has a density in CsCl of 1.681 g/cm3 (79% A + T) and a molecu...
Kinetoplast DNA, a giant network of interlocked DNA circles, replicates by an unusual mechanism. Minicircles are released individually from the network by a topoisomerase II, and then, after replication, their progeny are reattached at antipodal positions on the network periphery. Studies to date have revealed two distinct variations on this model. In Crithidia fasciculata the newly replicated ...
Leishmania major is an important trypanosomatid pathogen that causes leishmaniasis, which is a serious disease in much of the Old World. Current treatments include a small number of antimony compounds that, while somewhat effective, are limited by serious side effects. We have screened a small portion of a unique chemical library and have found at least three novel compounds that are effective ...
A class of small RNA molecules possibly involved in RNA editing is present in the mitochondrion of Leishmania tarentolae. These "guide" RNA (gRNA) molecules are encoded in intergenic regions of the mitochondrial maxicircle DNA and contain sequences that represent precise complementary versions of the mature mRNAs within the edited regions. In addition, the 5' portions of several gRNAs can form ...
The I-complex in Leishmania tarentolae is an uniquely-structured F1-ATPase Robert E. Nelson a, Inna Aphasizheva b, Arnold M. Falick c, Martina Nebohacova b, Larry Simpson a,b,∗ a Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA 90095, USA b Howard Hughes Medical Institute, 6780 MacDonald Research Laboratories, University of California, Los...
N-acetyl serotonin methyl transferase (ASMT) is the last enzyme in the melatonin synthesis pathway. Evidence linking autism-related disorders with disorders of melatonin metabolism, and, more specifically, with mutations of the gene encoding ASMT, prompted us to investigate the properties and localization of this enzyme. As a first step, we undertook to overproduce the protein in a recombinant ...
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