(1968). Aspects of the electronic structure of the purine and pyrimidine bases of the nucleic acids and of their interactions. Advances in Quantum Chemistry, 4 , 267.PULLMAN, A. & PULLMAN, B. (1968). Aspects of the electronic structure of the purine and pyrimidine bases of the nucleic ...
7.1 Structure of DNA 7.1.1 Describe the structure of DNA, including the antiparallel strands, 3' -5' linkages and hydrogen bonding between purines and pyrimidines. DNA is made up of two strands. At one end of each strand there is a phosphate group attached to the carbon atom number 5 o...
The three structures with purine or pyrimidine nucleotide ligands are all hexameric. Also, the binding of deoxy or ribonucleotides is similar, as in the former a water molecule replaces the hydrogen bond made by Lys11 to the 2′-hydroxyl group of the ribose moiety. This allows Lys11 to ...
G、A属于嘌呤(purine),双环结构;C、T、U属于嘧啶(pyrimidine),单环结构。 五碳糖(pentose sugar):DNA中是脱氧核糖(deoxyribose),RNA中是核糖(ribose) 磷酸(phosphoric acid):与5号碳原子连接 这三种组分通过共价键结合在一起(脱去两个水)。因为有4中碱基,所以构成DNA的核苷酸由四种。 一个核苷酸的五碳糖3号...
Theoretical and experimental studies of adenine, purine and pyrimidine isolated molecule structure. Stepanian S G,Sheina G G,Radchenko E D,et al. Journal ofMolecular Structure . 1985Stepanian, S.G., Sheina, G.G., Radchenko, E.D. & Blagoi, Yu.P. (1985). Theoretical and experimental ...
经典名篇共享MOLECULAR_STRUCTURE_OF_NUCLEIC_ACIDS 经典名篇共享 MOLECULAR_STRUCTURE_OF_NUCLEIC_ACIDS Watson 和 Crick 发现有关DNA双螺旋结构的原始论⽂，发表于1953年4⽉2 ⽇的Nature杂志。MOLECULAR STRUCTURE OF NUCLEIC ACIDS A Structure for Deoxyribose Nucleic Acid We wish to suggest a structure for ...
Structure-antiviral activity relationship in the series of pyrimidine and purine N-[2-(2-phosphonomethoxy)ethyl] nucleotide analogues. 1. Derivatives substituted at the carbon atoms of the base. Holy A,Günter J,Dvoráková H,Masojídková M,Andrei G,Snoeck R,Balzarini J,De Clercq E. Journal...
Novel Pyrimidine and Purine Derivatives of l-Ascorbic Acid: Synthesis and Biological Evaluation The novel pyrimidine derivatives 16 of 2,3-dibenzyl-4,5-didehydro-5,6-dideoxy-l-ascorbic acid were synthesized by the condensation of pyrimidine bases with... Silvana,Rai-Mali,Antonija,... - 《Journ...
This allows clear distinction of purine and pyrimidines in double-nucleotide-type selective-labelled samples (for example, G,Ulab- or A,Ulab-RNAs). For the long-range carbon–carbon transfer, we tested different mixing sequences and finally settled on the PDSD (Proton-Driven-Spin-Diffusion) ...
Purines and Pyrimidines:A basic crystalline compound that forms hydrogen bonds. They are the two basic types of nitrogenous bases that form the nucleotide bases found in DNA and RNA. Monomer:A molecule that can be bonded to other identical molecules to make a polymer (see below). Remember th...