The level of the structure is the proteins in the Secondary,
- In proteins, the structure of local segments can be arranged into three different three-dimensional formations: alpha helices (α-helix), beta sheets (β-strand), and omega loops. An alpha helix is the most common secondary protein conformation because it has low energy and a stable arrangement.
- The α-helix is formed by the interaction between amino acids of every backbone N−H hydrogen-bonded with the backbone C=O group of the corresponding amino acid residue in the polypeptide chain.
- The α-helix motif is very common in transmembrane segments of proteins that cross the lipid bilayer.
- Protein biosynthesis is a core biological process, occurring inside cells, balancing the loss of cellular proteins through the production of new proteins.
- Proteins perform several critical functions as enzymes, structural proteins, or hormones.
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