نتایج جستجو برای: مدل caf

تعداد نتایج: 121911  

Journal: :Nucleic acids research 2003
Helena Santos-Rosa Ester Valls Tony Kouzarides Marian Martínez-Balbás

P/CAF is a histone acetyltransferase enzyme which was originally identified as a CBP/p300-binding protein. In this manuscript we report that human P/CAF is acetylated in vivo. We find that P/CAF is acetylated by itself and by p300 but not by CBP. P/CAF acetylation can be an intra- or intermolecular event. The intermolecular acetylation requires the N-terminal domain of P/CAF. The intramolecular...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
Maarten Hoek Bruce Stillman

De novo chromatin assembly maintains histone density on the daughter strands in the wake of the replication fork. The heterotrimer chromatin assembly factor 1 (CAF-1) couples DNA replication to histone deposition in vitro, but is not essential for yeast cell proliferation. Depletion of CAF-1 in human cell lines demonstrated that CAF-1 was required for efficient progression through S-phase. Cell...

2017
Tomoya Sekiguchi Motoo Nakagawa Shinji Miwa Ayano Shiba Yoshiyuki Ozawa Masashi Shimohira Keita Sakurai Yuta Shibamoto

Calcifying aponeurotic fibroma (CAF) is a rare benign tumor that typically develops in the fascia and tendons. On MRI, CAF usually shows isointensity on T1WI and heterogeneous high intensity on T2WI. We report a case of 17-month-old girl with CAF on her right ankle. MRI showed an usual signal intensity for CAF. At 3 years and 4 months of age, MRI revealed hyperintense nodules on T1WI and T2WI i...

2015
Vasilios Devetzis Arezoo Daryadel Stefanos Roumeliotis Marios Theodoridis Carsten A. Wagner Stefan Hettwer Uyen Huynh-Do Passadakis Ploumis Spyridon Arampatzis Aristidis S. Charonis

BACKGROUND Diabetes is the leading cause of CKD in the developed world. C-terminal fragment of agrin (CAF) is a novel kidney function and injury biomarker. We investigated whether serum CAF predicts progression of kidney disease in type 2 diabetics. METHODS Serum CAF levels were measured in 71 elderly patients with diabetic nephropathy using a newly developed commercial ELISA kit (Neurotune®)...

Journal: :Genetics 2005
Jeffrey Linger Jessica K Tyler

The removal of histones from DNA and their subsequent replacement is likely to be necessary for all processes that require access to the DNA sequence in eukaryotic cells. The histone chaperone chromatin assembly factor 1 (CAF-1) mediates histone H3-H4 assembly during DNA replication and nucleotide excision repair in vitro. We have found that budding yeast deleted for the genes encoding CAF-1 ar...

Journal: :مهندسی برق دانشگاه تبریز 0
ابراهیم باقری دانشگاه علم و صنعت ایران محمدحسین کهایی دانشگاه علم و صنعت ایران محمد جباریان دانشگاه علم و صنعت ایران علی اصغر بهشتی شیرازی دانشگاه علم و صنعت ایران

چکیده: در این مقاله، مسئله­ طراحی شکل­موج به منظور تخمین پارامترهای تأخیر و داپلر هدف، بر اساس معیار [i]crb بررسی می­شود. پس از به دست آوردن حدود crb، از مدل سیگنال ofdm برای طراحی شکل­موج استفاده می­شود و با حداقل کردن این حدود دو شکـل­مـوج طراحی می­شود. کارآیی شکل­موج­ها نیز با استفاده از تابع ابهام متقابل(caf[ii])، مورد بررسی قرار گرفته و برای ارزیابی دقیق­تر از پـارامتر mf[iii] استفـاده می­...

2012
Ling Cao Timothy Lim SangMu Jun Theresa Thornburg Recep Avci Xinghong Yang

During infection, Yersinia pestis uses its F1 capsule to enhance survival and cause virulence to mammalian host. Since F1 is produced in large quantities and secreted into the host tissues, it also serves as a major immune target. To hold this detrimental effect under proper control, Y. pestis expresses the caf operon (encoding the F1 capsule) in a temperature-dependent manner. However, additio...

2016
Alex Henke Omar E. Franco Grant D. Stewart Antony C.P. Riddick Elad Katz Simon W. Hayward Axel A. Thomson

BACKGROUND Prostate cancer-associated fibroblasts (CAF) can stimulate malignant progression and invasion of prostatic tumour cells via several mechanisms including those active in extracellular matrix; METHODS We isolated CAF from prostate cancer patients of Gleason Score 6-10 and confirmed their cancer-promoting activity using an in vivo tumour reconstitution assay comprised of CAF and BPH1 ...

Journal: :Development 1999
S E Jacobsen M P Running E M Meyerowitz

Arabidopsis thaliana floral meristems are determinate structures that produce a defined number of organs, after which cell division ceases. A new recessive mutant, carpel factory (caf), converts the floral meristems to an indeterminate state. They produce extra whorls of stamens, and an indefinite number of carpels. Thus, CAF appears to suppress cell division in floral meristems. The function o...

Journal: :Molecular biology of the cell 2007
Yasunari Takami Tatsuya Ono Tatsuo Fukagawa Kei-ichi Shibahara Tatsuo Nakayama

Chromatin assembly factor-1 (CAF-1), a complex consisting of p150, p60, and p48 subunits, is highly conserved from yeast to humans and facilitates nucleosome assembly of newly replicated DNA in vitro. To investigate roles of CAF-1 in vertebrates, we generated two conditional DT40 mutants, respectively, devoid of CAF-1p150 and p60. Depletion of each of these CAF-1 subunits led to delayed S-phase...

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