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.
Draw out the basic amino acid structure (not specific)
What is a peptide bond?
Proteins
- Proteins are macromolecules that are made up of long chains of amino acids. They are essential to the structure and function of living organisms and perform a wide range of functions, including:
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- catalysing biochemical reactions,
- providing structural support
- carrying out cellular communication.
- Proteins have a complex three-dimensional structure that is critical to their function. The primary structure of a protein is the linear sequence of amino acids, which determines the protein's overall structure and function.
- The secondary structure refers to the local folding patterns of the protein, including alpha helices and beta sheets.
- The tertiary structure is the overall three-dimensional structure of the protein, which is determined by the interactions between the amino acid side chains.
- The quaternary structure refers to the arrangement of multiple protein subunits, if the protein is made up of more than one polypeptide chain.
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