To Know Or Not To Know …
Proteins have a very complex structure. They are made up of chains of amino acids in a specific sequence, which is determined by segments of the genetic code in a cell’s DNA. The number of amino acids in the chain can vary from as little as ten to many thousands.
Up to 20 different amino acids can be built into the protein directly from the DNA sequence via messenger RNA. These amino acids are called the proteinogenic amino acids.
They include the nine essential amino acids, which must be supplied in the food. They are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine.
The remaining 11 non-
The primary structure of proteins refers to the sequence of the amino acids in the amino acids chain or ‘polypeptide’ chain.
The primary structure is held together by chemical bonds made during the synthetic process of the protein taking place in the cells’ cytoplasma at the ribosomes, which is where the amino acid chain is made using the messenger RNA as a template for the formation.
Thus the sequence of bases in messenger RNA (mRNA) -
In our body there are over 10,000 different proteins. Each protein has its own unique number and sequence of amino acids.
Protein folding is the process by which a protein assumes its functional shape or
conformation. It is the physical process by which a polypeptide chain folds into
its characteristic and functional three-
As mentioned above each protein starts as an unfolded polypeptide chain when translated from the sequence of messenger RNA to the linear chain of amino acids.
In this chain the amino acids interact with each other to produce a well-
The final three-
The secondary structure of proteins refers to regular local sub-
The tertiary structure of proteins refers to the three-
The quaternary structure of proteins is the three-
Proteins consist frequently of several structural subunits.
A structural domain is a part of the protein's overall structure that is self-
The correct three-
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