Where are blood type proteins located?

Red blood cell antigens can be sugars or proteins

Blood group antigens are either sugars or proteins, and they are attached to various components in the red blood cell membrane.

clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immune immunoglobulin tests are also necessary.