Which of the amino acids does NOT have an aliphatic side chain? a. Lysine b. Alanine c. Leucine d. Isoleucine e. Valine
Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
Which of the amino acids does NOT have an aliphatic side chain?
Lysine
Alanine
Leucine
Isoleucine
Valine
R groups in aliphatics are nonpolar and hydrophobic. The hydrocarbon chain's hydrophobicity rises as the number of C atoms increases.
-Alanine and glycine are ambivalent amino acids, which means they can exist either inside or outside the protein molecule, despite the fact that they prefer to stay inside protein molecules. Due of its negligibly sized side chain, glycine has little impact on hydrophobic interactions.
-A side chain or R group is joined to the -carbon of amino acids in addition to the amino and carboxyl groups. The size, shape, solubility, and ionisation characteristics of the R group in each amino acid give rise to distinctive features for each amino acid. As a result, proteins' structure and biological function are significantly influenced by the side chains of amino acids.
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