نتایج جستجو برای: poly tyrosine

تعداد نتایج: 151340  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده دامپزشکی 1391

سلول های بنیادی مزانشیمال به عنوان سلول های پیشساز غیر خونساز و چند توانی معرفی می شوند که در طیف وسیعی از بافت های بالغ بدن یافت می گردند. گیرنده های شبه toll، یکی از گیرنده های ایمنی بیان شده در سطح سلول های بنیادی مزانشیمال می باشند که می توانند طیف وسیعی از عملکردهای سلول را تحت الشعاع قرار دهند. در مطالعه حاضر بعد از ایجاد بیهوشی در 18 سر موش سوری از استخوان های ران و درشت نی به روش فلاش...

Journal: :iranian journal of immunology 0
abdolkarim sheikhi departments of immunology hossein b. ganji and anatomy, school of medicine, zanjan university of medical sciences, zanjan, iran razieh sheikhi department of environmental health, faculty of health sciences, tehran university of medical sciences, tehran, iran

background: uterine natural killer (unk) cells are the most abundant leukocytes in pre-implantation endometrium and early pregnancy deciduas in humans and rodents. they are associated with structural changes in maternal spiral arteries but regulation of their re-cruitment and activation is incompletely understood. the major subpopulation of unk cells in humans expresses cd56, the neural cell ad...

Journal: :research in molecular medicine 0
kaveh tari department of hematology, faculty of medical sciences, tarbiat modares university, tehran, irandepartment of hematology, faculty of medical sciences, tarbiat modares university, tehran, iran amir atashi department of hematology, faculty of medical sciences, tarbiat modares university, tehran, iran reza yarahmadi department of laboratory sciences, school of paramedical sciences, ahvaz jundishapur university of medical sciences, ahvaz, iran saeid abroun department of hematology, faculty of medical sciences, tarbiat modares university, tehran, iran abbas hajifathali taleghani hospital, shahid beheshti university of medical sciences, tehran, iran saeid kaviani department of hematology, faculty of medical sciences, tarbiat modares university, tehran, iran

mpns including a heterogeneous group of clonal or oligoclonal hamtopathies characterized by proliferation and accumulation of mature myeloid cells. jak2 tyrosine kinase mutation is the most common molecular lesion identified in 90% of cases. jak2 is involved in epo signaling pathway, and mutations in it lead to epo-independent spontaneous phosphorylation. most tyrosine kinase inhibitors (tki) a...

Journal: :Journal of Personalized Medicine 2021

Triple negative breast cancer (TNBC) is the most aggressive accounting for around 15% of identified cases. TNBC lacks human epidermal growth factor receptor 2 (HER2) amplification, hormone independent estrogen (ER) and progesterone receptors (PR) negative, not reactive to current targeted therapies. Existing treatment relies on chemotherapeutic treatment, but in spite an initial response chemot...

Journal: :Nucleic acids research 1978
K Marcu D Marcu B Dudock

An unusual class of wheat germ tRNAs has been isolated which completely lacks ribothymidine (rT) and contains an unmodified uridine in its place. We discuss here the isolation, identification and properties of these tRNAs. The rT-lacking tRNAs of wheat germ are essentially limited to the glycine isoacceptors (a minimum of five identifiable species), three threonine and at least, one tyrosine tR...

2015
Aroa Ejarque-Ortiz Carme Solà Águeda Martínez-Barriocanal Simó Schwartz Margarita Martín Hugo Peluffo Joan Sayós

CMRF35-like molecule-1 (CLM-1) belongs to a receptor family mainly expressed in myeloid cells that include activating and inhibitory receptors. CLM-1 contains two ITIMs and a single immunoreceptor tyrosine-based switch motif (ITSM), although also displays a binding site for p85α regulatory subunit of PI3K. By using murine primary microglial cultures, we show the presence of all CLM members in m...

Journal: :Catalysts 2022

Trans-cinnamic acid and p-coumaric are valuable intermediates in the synthesis of flavonoids widely employed food, flavor pharmaceutical industries. These products can be produced by deamination L-phenylalanine L-tyrosine catalyzed phenylalanine ammonia lyase or tyrosine lyase. Phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) from Rhodotorula glutinis do not exhibit strong substrate specificity co...

Journal: :The Journal of Experimental Medicine 1978
CM Warner TJ Berntson L Eakley JL McIvor RC Newton

The question of whether or not lymphoid cells can cooperate across a histocompatibility difference barrier has been studied in several laboratories. Using an adoptive transfer system, Katz et al. (1) first showed that T cells from (low responder x high responder) F(1) mice, primed to the terpolymer L-glutamic acid, L-lysine, L-tyrosine (GLT), could collaborate with 2,4-dinitrophenyl (DNP)-prime...

Journal: :physical chemistry research 2016
hamid dezhampanah

interactions of cationic tetrakis (n,n´,n´´,n´´´-tetramethyltetra-3,4-pyridinoporphyrazinatocobalt(ii) (co(tmtppa)) with synthetic polynucleotides, poly(a-t), poly(g-c) and calf thymus dna have been characterized in 5 mm phosphate buffer, ph 7.2, by optical absorption and fluorescence spectroscopy. the appearance of hypochromicity effect and the red shift in uv-vis spectrum of porphyrazine was ...

Journal: :The Journal of biological chemistry 1993
J Cui R L Somerville

The TyrR protein of Escherichia coli K12 is a homodimer containing 513 amino acids/subunit. This protein is important in the transcriptional regulation of several genes whose protein products catalyze steps in aromatic amino acid biosynthesis or transport. Methods were developed for efficiently purifying the TyrR protein to apparent homogeneity. We analyzed the pattern of cleavage of the TyrR p...

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