BIOLOGY
STRUCTURE OF PROTEINS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Primary Structure
|
|
|
Secondary Structure
|
|
|
Tertiary structure
|
|
|
Quaternary Structure
|
Detailed explanation-1: -A disulfide bond is a covalent bond between two sulfur atoms (–S–S–) formed by the coupling of two thiol (–SH) groups. Cysteine, one of 20 protein amino acids, has a –SH group in its side chain, and can easily be dimereized to cystine in aqueous solution by forming a disulfide bond.
Detailed explanation-2: -Answer and Explanation: The correct answer is c). Disulphide bridges stabilize tertiary structure.
Detailed explanation-3: -Disulfide bridges are sometimes called disulfide bonds or S-S bonds. They are covalent links between the Sulphur atoms of two cysteine amino acids and their formation stabilizes the tertiary and higher order structure of proteins.
Detailed explanation-4: -The tertiary structure of the protein At this stage, proteins start solidifying their structure by additional bonds such as disulfide bonds between two cysteines. The most important feature of tertiary structures is the presence of conserved regions with similar functions known as functional domains.