A., Sequence-Dependent DNA Structure: The Role of the Sugar-Phosphate Backbone. Journal of Molecular Biology 1998, 280 (3), 407- 420.Packer, M. J., Hunter, C. A. (1998) Sequence-dependent DNA Structure: The Role of the Sugar- phosphate Backbone, J. Mol. Biol. 280 (3): 407-420...
DNA secondary structure is a right-handed double helix with a sugar phosphate backbone on the outside and paired bases (A-T, G-C) on the inside. Which of the following are true?相关知识点: 试题来源: 解析 The two strands are antiparallel....
百度试题 结果1 题目DNAsecondarystructureisaright-handeddoublehelixwithasugarphosphatebackboneontheoutsideandpairedbases(A-T,G-C)ontheinside.Whichofthefollowingaretrue?相关知识点: 试题来源: 解析 Thetwostrandsareantiparallel.反馈 收藏
A“DOUBLEHELICAL”STRUCTURE –––DNAGEOMETRY PERIPHERYOFDNA –SUGAR-PHOSPHATECHAINSBASESARESTACKEDINPARALLELFASHIONCHARGAFF’SRULES A=TG=C COREOFDNA –––“COMPLEMENTARY”BASE-PAIRING TAUTOMERICFORMSOFBASES TWOPOSSIBILITIES ––KETO(LACTAM)ENOL(LACTIM)PROTONSHIFTSBETWEENTWOFORMSIMPORTANTINORDERTOSPECIFY...
In this arrangement, each base pair is of similar width, thus holding the sugar-phosphate backbones a constant distance apart along the DNA molecule. 在这样的设计,每个碱基对是类似的宽度,因此拿着糖磷酸骨干不断沿着DNA分子分开。 To maximize the efficiency of base-pair packing, the two sugar-phos...
the 3′ end of one strand faces the 5′ end of the other strand. The sugar and phosphate of the nucleotides form the backbone of the structure, whereas the nitrogenous bases are stacked inside, like the rungs of a ladder. Each base pair is separated from the next base pair by a dista...
一个核苷酸的五碳糖3号碳原子和与另一个核苷酸的磷酸之间通过磷酸二酯键(phosphodiester bond)缩合,形成核酸的骨架(alternating sugar and phosphate molecules forming the ‘backbone’),骨架部分都是一样的,不同的是碱基的变化,最后形成的长链结构是就叫核酸(nucleic acids)或多核苷酸(polynucleotide)。 The DNA doub...
nucleotide through a connection called aphosphodiester bond(Figure 3). It is this alternating sugar-phosphate arrangement that forms the "backbone" of a DNA molecule. How is the DNA strand organized? Although DNA is often found as a single-stranded polynucleotide, it assumes its most stable form...
(Fig.1a), named after its zigzag arrangement of the sugar-phosphate backbone, as the purines in Z-DNA are inverted into thesynconformation, while the pyrimidines remain in theanticonformation8. Sequences with the capacity to adopt Z-DNA structures are abundant in the human genome, occurring ...
Genomic DNAis highly susceptible to damage caused by various endogenous and environmental factors, such asreactive oxygen species, radiation, and chemical compounds. The most frequent types of DNA damage involve chemical modification or loss ofnucleobases. Because the phosphate-sugar backbone often remains...