Variable Transforming Activity of Nonglucosylated and Fragmented T4 DNA
نویسندگان
چکیده
منابع مشابه
antioxidant and antimicrobial activity of allium jesdianum extract
چکیده بررسی فعالیت ضد اکسیدانی و ضدمیکروبی عصاره گیاه بن سرخ (allium jesdianum) به کوشش: زهرا مقیمی هدف از این تحقیق بررسی میزان ترکیبات فنولی کل، ترکیبات فلاوونوئیدی کل، فعالیت ضداکسیدانی و ضدمیکروبی عصاره ی گیاه تازه و خشک بن سرخ بود. استخراج عصاره به روش های غوطه وری، استفاده از همزن مغناطیسی، دستگاه مایکروویو، امواج فراصوت و گرمادهی مقاومتی و با استفاده از متانول، اتانول و آب به عنوا...
A novel DNA joining activity catalyzed by T4 DNA ligase.
The use of T4 and E. coli DNA ligases in genetic engineering technology is usually associated with nick-closing activity in double stranded DNA or ligation of 'sticky-ends' to produce recombinant DNA molecules. We describe in this communication the ability of T4 DNA ligase to catalyze intramolecular loop formation between annealed oligodeoxyribonucleotides wherein Watson-Crick base pairing is a...
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DNA polymerases replicate DNA with high fidelity lab, which demonstrated that single point mutations in the T4 DNA polymerase gene can increase or decrease because of accurate nucleotide incorporation coupled with exonucleolytic proofreading to remove misinmutation rates by 100-fold or more (Drake et al. 1969). Mutational analysis is a powerful method to probe corporated nucleotides. This state...
متن کاملCloning and expression of T4 DNA polymerase.
The structural gene coding for bacteriophage T4 DNA polymerase (gene 43) has been cloned into inducible plasmid vectors, which provide a source for obtaining large amounts of this enzyme after induction. The T4 DNA polymerase produced in this fashion was purified by an innovative three-step procedure and was fully active.
متن کاملTransforming Activity in Both Complementary Strands of Bacillus subtilis DNA.
Under conditions favoring single-strand transformation, the two complementary strands of Bacillus subtilis DNA, separated by differential complexing with polyriboguanylic acid, have identical transforming activity. Moreover separated single strands, upon renaturation with unmarked (recipient) DNA, form heteroduplex molecules with similar double-strand transformin activity. These findings bear u...
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ژورنال
عنوان ژورنال: Journal of Virology
سال: 1973
ISSN: 0022-538X,1098-5514
DOI: 10.1128/jvi.12.2.397-400.1973