Which of the following protein structure is missing in a monomeric protein? ans. Quaternary structure Secondary structure Primary structure Tertiary structure
Question
Which of the following protein structure is missing in a monomeric protein? ans. Quaternary structure
Secondary structure
Primary structure
Tertiary structure
Solution
The structure that is missing in a monomeric protein is the Quaternary structure.
Here's why:
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Primary structure: This is the sequence of amino acids in a protein. All proteins, including monomeric proteins, have a primary structure.
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Secondary structure: This refers to the local sub-structures of proteins, such as alpha helices and beta sheets. These are also present in all proteins, including monomeric proteins.
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Tertiary structure: This is the overall three-dimensional structure of a protein. Again, all proteins, including monomeric proteins, have a tertiary structure.
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Quaternary structure: This refers to the structure formed by several protein molecules (polypeptide chains), usually called protein subunits, which function as a single protein complex. Monomeric proteins, by definition, consist of only a single polypeptide chain, so they do not have a quaternary structure.
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