Demystifying the D-loop during DNA recombination
نویسندگان
چکیده
منابع مشابه
DNA recombination during PCR.
PCR co-amplification of two distinct HIV1 tat gene sequences lead to the formation of recombinant DNA molecules. The frequency of such recombinants, up to 5.4% of all amplified molecules, could be decreased 2.7 fold by a 6 fold increase in Taq DNA polymerase elongation time. Crossover sites mapped essentially to three discrete regions suggesting specific Taq DNA polymerase pause or termination ...
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Homologous recombination (HR) is essential for maintaining genomic integrity, which is challenged by a wide variety of potentially lethal DNA lesions. Regardless of the damage type, recombination is known to proceed by RAD51-mediated D-loop formation, followed by DNA repair synthesis. Nevertheless, the participating polymerases and extension mechanism are not well characterized. Here, we presen...
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Antigen receptor loci are composed of numerous variable (V), diversity (D), and joining (J) gene segments, each flanked by recombination signal sequences (RSSs). The V(D)J recombination reaction proceeds through RSS recognition and DNA cleavage steps making it possible for multiple DNA double strand breaks (DSBs) to be introduced at a single locus. Here we use ligation-mediated PCR to analyze D...
متن کاملبررسی تنوع ناحیه D-loop در DNA میتوکندریایی شترهای تککوهانه و دوکوهانه ایرانی
هدف از انجام مطالعه حاضر، بررسی تنوع ناحیه D-loop در DNA میتوکندریایی شترهای تککوهانه و دوکوهانه ایرانی بود. بررسی و کاوش درباره شترها در سطح ژنومی میتواند به شناخت هرچه بهتر و حفظ آگاهانه آنها کمک کند. در تحقیق حاضر از تعداد 45 نفر شتر تککوهانه که از مناطق مختلفی (ایستگاه پرورش شتر یزد، ایستگاه طرود و گلههای سمنان) انتخاب شده بودند به همراه 29 شتر دوکوهانه که از استان اردبیل گزینش شده بود...
متن کاملMeasurements of DNA-loop formation via Cre-mediated recombination
The Cre-recombination system has become an important tool for genetic manipulation of higher organisms and a model for site-specific DNA-recombination mechanisms employed by the λ-Int superfamily of recombinases. We report a novel quantitative approach for characterizing the probability of DNA-loop formation in solution using time-dependent ensemble Förster resonance energy transfer measurement...
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ژورنال
عنوان ژورنال: Nature
سال: 2020
ISSN: 0028-0836,1476-4687
DOI: 10.1038/d41586-020-02831-2