ANTIGENS
ANTIGENS AND IMMUNOGENICITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Immunoglobulin A present in
|
|
two types
|
|
|
three types
|
|
|
five types
|
|
|
four types
|
Explanation:
Detailed explanation-1: -While the sequences of the IgA1 and IgA2m1 tailpieces are identical, IgA2m2 differs by two residues. Residues 458 and 467 are both valines in IgA1 and IgA2m1, whereas IgA2m2 has an isoleucine and alanine at these positions, respectively (Figure 1A, asterisks).
Detailed explanation-2: -The second most abundant Ig is immunoglobulin A (IgA), which has two subclasses: IgA1 and IgA2.
There is 1 question to complete.