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A more complex computational problem is the prediction of intermolecular interactions, such as in molecular docking, [95] protein folding, protein–protein interaction and chemical reactivity. Mathematical models to simulate these dynamical processes involve molecular mechanics , in particular, molecular dynamics .
Protein structure is the three-dimensional arrangement of atoms in an amino acid-chain molecule. Proteins are polymers – specifically polypeptides – formed from ...
Protein primary structure is the linear sequence of amino acids ... Symbol Description Residues represented ... phosphorylation is perhaps the most important chemical ...
The protein's empirical chemical formula is C 169,719 H 270,466 N 45,688 O 52,238 S 911. [22] It has a theoretical instability index (II) of 42.38, classifying the protein as unstable. [ 22 ] The protein's in vivo half-life , the time it takes for half of the amount of protein in a cell to break down after its synthesis in the cell, is ...
At the top level are all alpha proteins (domains consisting of alpha helices), all beta proteins (domains consisting of beta sheets), and mixed alpha helix/beta sheet proteins. While most proteins adopt a single stable fold, a few proteins can rapidly interconvert between one or more folds. These are referred to as metamorphic proteins. [5]
Body composition may be analyzed in various ways. This can be done in terms of the chemical elements present, or by molecular structure e.g., water, protein, fats (or lipids), hydroxyapatite (in bones), carbohydrates (such as glycogen and glucose) and DNA.
A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.
Lysine (symbol Lys or K) [2] is an α-amino acid that is a precursor to many proteins.Lysine contains an α-amino group (which is in the protonated −NH + 3 form when the lysine is dissolved in water at physiological pH), an α-carboxylic acid group (which is in the deprotonated −COO − form when the lysine is dissolved in water at physiological pH), and a side chain (CH 2) 4 NH 2 (which ...