IMMUNOLOGY

IMMUNE RESPONSE

CLASSICAL ALTERNATE AND LECTIN PATHWAYS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In complete immunoglobulin molecules chains are held together by
A
Disulfide bonds
B
Polypeptide bonds
C
Dihydrogen bonds
D
Monosulfide bonds
Explanation: 

Detailed explanation-1: -Each IgG molecule consists of two heavy chains and two light chains. The two heavy chains are linked to each other by disulfide bonds and each heavy chain is linked to a light chain by a disulfide bond.

Detailed explanation-2: -The polypeptide backbone of proteins is held together by two main types of covalent bonds: the peptide bonds that link the amino acid residues and the disulfide bonds that link pairs of cysteine amino acids.

Detailed explanation-3: -Disulfide bond structure is critical for the structure, stability, and biological functions of IgG molecules. It has been known that inter chain disulfide bonds are more susceptible to reduction than intra chain disulfide bonds.

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