Question

Determine the highest level of protein structure described by the following. Sort each item into the appropriate bin.

Answer 1

Concepts and reason

Classification of the proteins based on the structure is given. To match with their correct explanation, write the different structure of proteins with their structure specification. The structure of protein becomes more complex from the primary structure to the quaternary form.

Fundamentals

Proteins are the polymers of amino acids. The arrangement of amino acid determines the structural differences in the polypeptide chain of a protein. Based on the structure, the proteins are classified into the following form:

1.Primary structure, the simplest structure contains the information about how amino acids are arranged in the polypeptide chain.

2.Secondary structure, it can be helical and sheet-like depending upon the interaction between the polypeptide chain.

3.Tertiary structure, it is more complex and it shows the arrangement in three dimensional

4.Quaternary structure, it the most complex structure and decides the shade of the protein.

Primary structure of protein contains the order of amino acids. The primary structure of includes all the features of a protein which are resulted due to covalent bonds.

The secondary structure of the protein is classified into ${\rm{\alpha }} - {\rm{helix}}$ and ${\rm{\beta }} - {\rm{pleated}}$ sheet. The secondary structure is formed as a result of hydrogen bonding between peptide bonds which play a crucial role in stabilizing the secondary structure as well as tertiary and quaternary structures also.

The tertiary structure of the protein determines the overall shape of a single polypeptide chain. The ${\rm{\alpha }} - {\rm{helix}}$ and the ${\rm{\beta }} - {\rm{pleated}}$ folds into a compact globular structure and this folding is driven by hydrophobic interactions.

Quaternary structure of the protein contains overall macromolecule structure containing more than one polypeptide chain.

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