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...bin has four separate chains of protein (four subunits). Due to specific [[hydrogen bond|hydrogen bonding]], each chain forms a molecule with a cavity that can spec

...phosphate backbones (Figure 2). The [[base pair]]s are held together by [[hydrogen bond]]s, a type of chemical attraction that is easy to break and easy to reform.

{{main|Hydrogen bond}} The donated proton in a hydrogen bond is usually bound to an [[electronegativity|electronegative]] atom of the do

{{rpr|Hydrogen bond}} (7 Oct)

...nteracts with the other DNA strand. The double helix is held together by [[hydrogen bond]]s between the bases attached to the two strands. If many nucleotides are l

Double stranded DNA is formed by a weak [[hydrogen bond]] between the bases holding the nucleotides together. Each base is a struc The double helix is held together by weak [[hydrogen bond]]s between the complementary bases attached to the two strands. If many nuc

...es divergent binding sites [e.g. a spherical, Lewis acidic metal cation or hydrogen bond acceptor halide anion). In turn a binding site is defined as a region of th