The hydrogen bonds in DNA Watson–Crick base pairs have long been considered predominantly electrostatic phenomena. In this chapter, we show with state-of-the-art calculations that this is not true and that electrostatic interactions and covalent contributions in these hydrogen bonds are in fact of...
DNA strands are held together into a double helical structure by hydrogen bonds between the purine and pyrimidine bases on the two complementary strands. This highly specific base pairing of A-T (two hydrogen bonds) and G-C (three hydrogen bonds) was instrumental in the discovery of the struct...
The explanation of mentioned DNA transformation is based on the estimate of free energy of discs with an even number of hydrogen bonds, and an estimate of melting point temperature for the subsystem of odd index fibers and transition temperature of the subsystem of even index fibers. 展开 关键...
Hydrogen bonding between complementary base pairing in the DNA double helix provides excellent stability to the structure, whereas in protein, the interaction between groups such as NH, CO, and OH is important in predicting regular helical or sheet conformation. Hydrogen bonds are relatively weak in...
- The two strands are held together by hydrogen bonds formed between the paired bases. This bonding is crucial for the stability of the DNA double helix structure. Hint: Think of hydrogen bonds as the glue that holds the two strands together. 6. Overall Structure: - The two polynucleotide ...
DNA transcription depends upon the highly efficient and selective function of RNA polymerases (RNAPs). Modifications in the template DNA can impact the progression of RNA synthesis, and a number of DNA adducts, as well as abasic sites, arrest or stall transcription. Nonetheless, data are needed...
hydrogen_bonds Hydrogen Bonds Hydrogen bonds have played an incredibly important role in the history of structural biology. Both the structure of DNA and of protein a-helices and b-sheets were predicted based largely on the hydrogen bonds these structures form. So understanding hydrogen bonds is ...
Hydrogen Bonds Hydrogen bonds have played an incredibly important role in the history of structural biology. Both the structure of DNA and of protein -helices and -sheets were predicted based largely on the hydrogen bonds these structures form. So understanding hydrogen bonds is clearly important, ...
Besides canonical Watson-Crick base pairing, DNA can also adopt non-canonical structures for which special hydrogen bonds are found. A particular class of non-canonical structures involves protonated cytidine nucleotides: for example, C~+-G-C base triplets with one protonated cytidine interacting with...
Here, we propose an approach of plasmonic antenna enhanced infrared spectroscopy to study the hydrogen bonding interaction between poly(thymine) DNA (poly T DNA) and melamine. The formation of multiple hydrogen bonds between melamine and thymine of poly T DNA is revealed by the appearance of a ...