Preparation of covalently linked DNA-RNA hybrids and arabinocytidine containing DNA fragments.

نویسندگان

  • E de Vroom
  • H C Roelen
  • C P Saris
  • T N Budding
  • G A van der Marel
  • J H van Boom
چکیده

It will be demonstrated that 5'-O-DMT-N-acyl-deoxyribonucleosides, 5'-O-Lev-2'-O-MTHP-N-acyl-ribonucleosides and, also, 2'-O-MTHP-N-acyl-ara-cytidine can be coupled, via the hydroxybenzotriazole phosphotriester approach, to afford two types of DNA-RNA hybrids as well as ara-C containing DNA-fragments. The final removal of acid-labile DMT and MTHP groups could be effected by 1 h treatment with 80% acetic acid of the otherwise unprotected DNA-RNA hybrids. The same acidic hydrolysis did not result in complete removal of the 2'-O-MTHP group from the ara-C unit. Complete deblocking was accomplished after an additional 2 h aqueous HC1 (0.01 M; pH 2.00) treatment.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

RNA-linked nascent DNA fragments in Escherichia coli.

Nucleic acid that is extracted from E. coli labeled by a brief pulse of [(3)H]dT and depatured by treatment with heat, formamide, or formaldehyde bands in a region with a density higher than that of single-stranded E. coli DNA in a Cs(2)SO(4) equilibrium density gradient. If treated with alkali or RNase, it then exhibits the density of single-stranded DNA. These results suggest the presence of ...

متن کامل

Simple procedure for production of short DNA size markers of 100 to 2000 bp

DNA size markers (ladder) are essential tools in molecular biology, genetics and biotechnology. In this study, a simple and cost-effective method for laboratory production of DNA ladders is introduced. For this purpose, different sizes of 100 to 2000 bp DNA segments were designed using PCR technique. For producing 14 different gene fragments as DNA molecular weight markers, recombinant plasmid ...

متن کامل

DNA covalently linked to carboxymethyl-cellulose and its application in affinity chromatography.

Affinity chromatography on columns containing DNA has been successfully used in the isolation and purification of DNA dependent polymerases and other DNA-binding proteins as well as for the purification of nucleic acids hybridizable to the column bound DNA [l] . Two drawbacks of DNA column materials used so far have limited their application: firstly, in the most widely used column materials DN...

متن کامل

Protocol for sortase-mediated construction of DNA-protein hybrids and functional nanostructures.

Recent methods in DNA nanotechnology are enabling the creation of intricate nanostructures through the use of programmable, bottom-up self-assembly. However, structures consisting only of DNA are limited in their ability to act on other biomolecules. Proteins, on the other hand, perform a variety of functions on biological materials, but directed control of the self-assembly process remains a c...

متن کامل

Electron microscopic mapping of RNA transcribed from the late region of polyoma virus DNA.

The polyoma virus (Py) RNA species transcribed from the L DNA strand of the "late" region of the Py genome in Py-infected mouse cells have been mapped by hybridization with specific fragments of Py DNA followed by electron microscopic visualization of the hybrids. Total cellular polyadenylated Py-specific RNA molecules having an S value in the range of 16S to 20S were purified by oligodeoxythym...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Nucleic acids research

دوره 16 7  شماره 

صفحات  -

تاریخ انتشار 1988