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The dissociation constant is commonly used to describe the affinity between a ligand (such as a drug) and a protein; i.e., how tightly a ligand binds to a particular protein. Ligand–protein affinities are influenced by non-covalent intermolecular interactions between the two molecules such as hydrogen bonding , electrostatic interactions ...
For example, the DNA codons TTT and TTC both code for the amino acid Phenylalanine, so a change from the third T to C makes no difference to the resulting protein. On the other hand, the codon GAG codes for Glutamic acid while the codon GTG codes for Valine , so a change from the middle A to T does change the resulting protein, for better or ...
When the difference between successive pK values is about four or more, as in this example, each species may be considered as an acid in its own right; [27] In fact salts of H 2 PO − 4 may be crystallised from solution by adjustment of pH to about 5.5 and salts of HPO 2− 4 may be crystallised from solution by adjustment of pH to about 10 ...
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The difference between the two stability constants is mainly due to the difference in the standard entropy change, ΔS ⊖. In the reaction with the chelating ligand there are two particles on the left and one on the right, whereas in equation with the monodentate ligand there are three particles on the left and one on the right.
The confounding final 32 seconds of the game that saw the Bears fail to use their final timeout as they were driving down 23-20 to set up a game-tying field goal did not just go over poorly with ...