نتایج جستجو برای: peptide nucleic acids
تعداد نتایج: 444238 فیلتر نتایج به سال:
A nucleobase-caged peptide nucleic acid (PNA) having a (6-bromo-7-methoxycoumarin)-4-ylmethoxycarbonyl (Bmcmoc) caging group was newly synthesized. The Bmcmoc-caged PNAs were photolyzed to produce parent PNAs with a high photochemical efficiency. Introduction of a single Bmcmoc group was sufficient to suppress polymerase chain reaction (PCR) clamping activity and triplex invasion complex format...
By using an artificial restriction DNA cutter which is composed of Ce(iv)/EDTA and two pseudo-complementary peptide nucleic acid strands (pcPNAs), only one target site in the whole genome of human beings (one site in the X chromosome) was selectively hydrolyzed.
Incorporation of a guanidine functional group into the PNA backbone facilitates cellular uptake of PNA into mammalian cells with efficiency comparable to that of the TAT transduction domain. The modified PNA recognizes and binds to the complementary DNA strand in accordance with Watson-Crick recognition rules. However, unlike polypyrimidine PNA which binds to DNA in 2:1 stoichiometry, the modif...
It is demonstrated that positive supercoiling affiliated with nucleosome formation can act as the driving force to repair the G-quadruplex, cruciform as well as a stable non-B DNA structure caused by peptide nucleic acid.
E wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest. A structure for nucleic acid has already been proposed by Pauling and Corey. They kindly made their manuscript available to us in advance of publication. Their model consists of three intertwined chains, with the phosphates near the fi...
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