Question

question 16

ulex europaeus is a plant-derived lectin that reacts with:

h antigen
b antigen
\\(a_2\\) antigen
\\(a_1\\) antigen

Explanation:

Identify the lectin source

Ulex europaeus is a common gorse plant.

Determine lectin specificity

Its seed extract contains a lectin.
This lectin specifically binds L-fucose.
L-fucose is the immunodominant sugar.
This sugar defines the H antigen.

Evaluate the given options

The options list H, B, \(A_2\), and \(A_1\) antigens.
Ulex europaeus lectin serves as anti-H.
Therefore, it reacts with the H antigen.

Answer:

• H antigen (Correct answer)
• B antigen
• A₂ antigen
• A₁ antigen