نتایج جستجو برای: genomic modification

تعداد نتایج: 240732  

Journal: :The Journal of biological chemistry 2008
Nikole T Greeson Roopsha Sengupta Ahmad R Arida Thomas Jenuwein Steven L Sanders

Histone lysine methylation is an important chromatin modification that can be catalyzed to a mono-, di-, or tri-methyl state. An ongoing challenge is to decipher how these different methyllysine histone marks can mediate distinct aspects of chromatin function. The fission yeast checkpoint protein Crb2 is rapidly targeted to sites of DNA damage after genomic insult, and this recruitment requires...

Journal: :iranian journal of allergy, asthma and immunology 0
zahra tavakoli institute of biochemistry and biophysics, university of tehran, tehran, iran sussan k. ardestani institute of biochemistry and biophysics, university of tehran, tehran, iran taghi lashkarbolouki school of biology, damghan university of basic sciences, damghan, iran amina kariminia department of immunology, pasteur institute of iran, tehran, iran taghi zahraei salehi department of microbiology, faculty of veterinary medicine, university of tehran, tehran, iran nasser tavassoli department of immunology, school of public health, tehran university of medical sciences, tehran, ir

brucellosis is an infectious disease with high impact on innate immune responses which is induced partly by its dna. in the present study the potential differences of wild type and patients isolates versus attenuated vaccine strains in terms of cytokines, ros and no induction on murine splenocytes and peritoneal macrophages were investigated. this panel varied in base composition and included d...

ژورنال: :genetics in the 3rd millennium 0
رکسانا کریمی نژاد roxsana kariminejad کیمیا نجفی kimiya najafi کیا نجفی kiya najafi آزاده مشتاق azadeh moshtagh محمد حسن کریمی نژاد mohammadhassan kariminejad شهرک غرب, میدان صنعت, شماره 1143,

پس از شرح مختصری در مورد تولد دانش سیتوژنتیک (1956) و کاربرد آن در پزشکی (1959) به عنوان آزمایش ارزنده ای برای تشخیص بیماریهای ارثی ناشی از ناهنجاریهای کروموزومی، محدودیت دامنه کارآیی آن، محققین را بر آن داشت روش های نواری b‏anding را کشف و به کار گیرند. این روش توانست بسیاری از مشکلات و محدودیت های قبلی را مرتفع نماید ولی باز در مواردی به ویژه در نمونه هایی که امکان کشت بافت مقدور نبود، همچنین...

Journal: :iranian journal of parasitology 0
b kazemi department of biotechnology, school of medicine, shahid beheshti university of medical sciences, tehran, iran and cellular and molecular biology research center, shahid beheshti university of medical sciences, tehran, iran

leishmania is a protozoan parasite belonging to the family trypanosomatidae, which is found among 88 different countries. the parasite lives as an amastigote in vertebrate macro­phages and as a promastigote in the digestive tract of sand fly. it can be cultured in the laboratory us­ing appropriate culture media. although the sexual cycle of leishmania has not been observed during the promastigo...

Journal: :Symmetry 2017
Jaehee Jung Jong Im Kim Young-Sik Jeong Gangman Yi

Big data research on genomic sequence analysis has accelerated considerably with the development of next-generation sequencing. Currently, research on genomic sequencing has been conducted using various methods, ranging from the assembly of reads consisting of fragments to the annotation of genetic information using a database that contains known genome information. According to the development...

2017
Samuel Gilberto Matthias Peter

The cell division cycle is driven by a collection of enzymes that coordinate DNA duplication and separation, ensuring that genomic information is faithfully and perpetually maintained. The activity of the effector proteins that perform and coordinate these biological processes oscillates by regulated expression and/or posttranslational modifications. Ubiquitylation is a cardinal cellular modifi...

Journal: :The Biochemical journal 2013
James P Reddington Sari Pennings Richard R Meehan

Methylation of the cytosine base in DNA, DNA methylation, is an essential epigenetic mark in mammals that contributes to the regulation of transcription. Several advances have been made in this area in recent years, leading to a leap forward in our understanding of how this pathway contributes to gene regulation during embryonic development, and the functional consequences of its perturbation i...

2012
Sunchung Park Sookyung Oh Steve van Nocker

Histone lysine methylation patterns underlie much of the functional diversity of nucleosomes in eukaryotes, and an interesting aspect of histone methylation is the potential functional specificity for different methylation states on a given lysine. Trimethylation of histone H3 (H3K27me3) is intimately related to developmental gene silencing through the so-called Polycomb Group (PcG) mechanism. ...

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