a covalent bond between a sugar and a phosphate in RNA and DNA. Phosphodiester bonds form the repeating sugar-phosphate array of the backbone of DNA and RNA.
Refers to any molecule in which two parts are joined through a phosphate group.
The chemical link between adjacent nucleotides in a polynucleotide.
A bond between a sugar group and a phosphate group; such bonds form the sugar-phosphate backbone of DNA.
A phosphodiester bond is a group of strong covalent bonds between the phosphorus atom in a phosphate group and two other molecules over two ester bonds. Phosphodiester bonds are central to all life on Earth, as they make up the backbone of the strands of DNA. In DNA and RNA, the phosphodiester bond is the linkage between the 3' Carbon atom and the 5' Carbon of the ribose sugar.