Hvor dannes kovalente bindinger mellem to deoxyribose nukleotider?
Phosphodiester bond
Phosphodiesterbindinger er centrale for alt liv på Jorden,[fn 1] da de udgør rygraden i nukleinsyrestrengene. I DNA og RNA er fosfodiesterbindingen forbindelsen mellem 3'-kulstofatomet i et sukkermolekyle og 5'-kulstofatomet i et andet, deoxyribose i DNA og ribose i RNA. Der dannes stærke kovalente bindinger mellem fosfatgruppen og to 5-kulstofringe kulhydrater (pentoser) over to esterbindinger.
Phosphodiester bonds are central to all life on Earth,[fn 1] as they make up the backbone of the strands of nucleic acid. In DNA and RNA, the phosphodiester bond is the linkage between the 3' carbon atom of one sugar molecule and the 5' carbon atom of another, deoxyribose in DNA and ribose in RNA. Strong covalent bonds form between the phosphate group and two 5-carbon ring carbohydrates (pentoses) over two ester bonds.
Phosphodiester bond