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1 sty 2017 · The structural and physiological properties of a protein are greatly influenced by the sequence of its constituent amino acids, which is determined by the sequence of the DNA encoding the...
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The structural and physiological properties of a protein are...
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24 wrz 2018 · The ability of different proteins to assume a wide range of distinct three-dimensional conformations is in large part why they are so versatile; a protein’s shape determines its function. Conversely, DNA has just one function—genetic information storage—for which it assumes a single shape.
Proteins can be classified on the basis of their biological function into: 1- Catalytic function (enzymes) 2- Transport function (hemoglobin, albumin, transferrin) 3- Nutrient and storage proteins [e.g., casein & ferritin] 4- contractile or mobile proteins [e.g., actin, myosin] 5- Structural function [Keratin, elastin, collagen]
Contains comprehensive analytical description of structure, biophysics and function of proteins; Also summarizes the techniques used to characterize protein and protein interactions
For a protein that catalyzes a chemical reaction (an enzyme), the binding of each substrate molecule to the protein is an essential prelude. In the simplest case, if we denote the enzyme by E, the substrate by S, and the product by P, the basic reaction path is E + S → ES → EP → E + P.
1 sty 2011 · The relationship between protein structure and function is the key interface between chemistry and life. The forces that dictate dynamic biochemical reactions inside cells more often involve transient weak molecular interactions than changes in covalent bonding.
Proteins are biological molecules performing a wide variety of functions. For instance, some proteins catalyse a reaction, i.e. they make it go faster than it normally would: those proteins are called en-zymes. Other proteins transport molecules throughout the body, others yet provide structural support for cells so they have the right shape, etc.
