00:01
Antibodies have a y -shaped structure.
00:02
They are made of heavy chains and light chains.
00:05
Here the heavy chains are shown in blue and the light chains are shown in green.
00:11
Antibodies have a constant region, which is the stem part, and variable region, which are these tips here.
00:22
The constant region determines the class of the antibody, but it stays the same within all of the antibodies of that class.
00:29
The variable region is specific to eat antedin, so it is the part that changes more frequently.
00:34
The purpose of antibodies is basically to attract white blood cells to the pathogen.
00:39
There are five different classes of antibody.
00:42
The first is igg, or immunoglobin g...