phosphate backbone | Learn Science at Scitable - Nature
The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines...
Sugar phosphates - Wikipedia
Sugar phosphates (sugars that have added or substituted phosphate groups) are often used in biological systems to store or transfer energy. They also form the backbone for DNA and RNA . Sugar phosphate backbone geometry is altered in the vicinity of the modified nucleotides.
Phosphate Backbone - National Human Genome Research Institute
2024年12月2日 · A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
DNA vs RNA – Similarities and Differences - Science Notes and …
2020年8月23日 · Both DNA and RNA consists of sugar, nitrogenous bases, and a phosphate backbone. On both molecules, guanine and cytosine pair with each other (are complementary). Complementary base pairs are connected by hydrogen bonding.
Chemical RNA Structure | Learn Science at Scitable
Like DNA, each RNA strand has the same basic structure, composed of nitrogenous bases covalently bound to a sugar-phosphate backbone (Figure 1). However, unlike DNA, RNA is usually a...
1.2: Structure of DNA and RNA - Biology LibreTexts
Nucleotides can posess 1, 2 or 3 phosphate groups, e.g. the nucleotides adenosine monophosphate (AMP), adenoside diphosphate (ADP) and adenosine triphosphate (ATP). The phosphate groups are attached to the 5' carbon of the ribose sugar moiety.
2.5: Nucleotides - Biology LibreTexts
With the purine or pyrimidine base on the 1-carbon, this arrangement places the bases on the opposite side of the sugar from the polymerizing phosphodiester bonds. This forms a sugar-phosphate backbone to the DNA/RNA, which then has the bases projecting out from it. Figure \(\PageIndex{8}\).
10.2: Polynucleotides - Chemistry LibreTexts
The backbone of the chain consists of alternating phosphate and sugar units (ribose in RNA ). The purine and pyrimidine bases branch off this backbone. The structure of a RNA polynucleotide is shown in figure 10.2.2.
RNA: Composition and Base Pairing - SpringerLink
2022年5月4日 · The sugar–phosphate backbone of nucleic acids binds to the heterocyclic, aromatic, nitrogenous bases. In this chapter, we will discuss sugar puckers, phosphodiester linkages, and base pairs. We will learn about noncanonical base …
9.8: Phosphate Diesters in DNA and RNA - Chemistry LibreTexts
2022年7月20日 · Phosphate diesters play an absolutely critical role in nature - they are the molecular 'tape' that connect the individual nucleotides in DNA and RNA via a sugar-phosphate backbone.