نتایج جستجو برای: heteroduplex analysis
تعداد نتایج: 2824796 فیلتر نتایج به سال:
Two heteroduplexes d(C1A2C3T4C5G6C7A8C9A10C11)-d (G12T13G14T15G16G17A18G19T20G21) containing a bulged guanine either unmodified or modified with the carcinogen N-2-acetylaminofluorene (AAF) have been studied by nuclear magnetic resonance (NMR) as models of slipped mutagenic intermediates (SMI). Conformational equilibria are observed in both the unmodified and the AAF-modified heteroduplexes. Th...
مقدمه: ناشنوایی اختلالی هتروژن است و به علت های ژنتیکی یا محیطی رخ می دهد. در این راستا ژن جدید dfnb59 شناسایی شده است که رمز کننده پروتئین پژواکین بوده و بر روی بازوی بلند کروموزوم دو مستقر است. اخیرا جهش های این ژن بعنوان عامل ناشنوایی نوع عصبی معرفی شده است. در مطالعه حاضر ما نوع و فراوانی جهش های ژن dfnb59 را در 100 مورد بیمار منفی برای جهشهای ژن gjb2، در استان چهار محال و بختیاری بررسی کرد...
BACKGROUND Heteroduplex scanning techniques usually detect all heterozygotes, including common variants not of clinical interest. METHODS We conducted high-resolution melting analysis on the 24 exons of the ACVRL1 and ENG genes implicated in hereditary hemorrhagic telangiectasia (HHT). DNA in samples from 13 controls and 19 patients was PCR amplified in the presence of LCGreen I, and all 768 ...
Bacteriophage crosses using density-labeled parents have been carried out under conditions restricting DNA synthesis. The parental material and genetic contributions to progeny manifesting recombination within a genetic interval sufficiently short to exhibit high negative interference have been examined. The unreplicated products of recombination isolated as phage particles appear to contain lo...
The DNA repair protein MutS forms clamp-like structures on DNA that search for and recognize base mismatches leading to ATP-transformed signaling clamps. In this study, the mobile MutS clamps were trapped on DNA in a functional state using single-cysteine variants of MutS and thiol-modified homoduplex or heteroduplex DNA. This approach allows stabilization of various transient MutS-DNA complexe...
Single-stranded conformation polymorphism (SSCP) analysis and heteroduplex mobility assays (HMAs) were used to identify and genotype enteric adenoviruses (EAd). The results were compared to those of restriction endonuclease assays, species-specific PCRs, and direct nucleotide sequence analyses. Of the 31 stool samples tested, 15 isolates were identified as EAd and 7 were identified as nonenteri...
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