Antigens are important because they trigger responses to pathogens by the immune system. Without them, no prevention against pathogens would take place.
There are about 45 different Rh antigens, the most important of which is the D-antigen.
antigen D is the most important
The most important antigens in the Rh group are the RhD antigen and the RhC, RhE, Rhc, and Rhe antigens. The RhD antigen is the most clinically significant, as the presence or absence of this antigen determines an individual's Rh blood type (positive or negative). These antigens are important in blood transfusions and can cause hemolytic disease of the newborn if not properly matched during pregnancy.
alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), prostate specific antigen (PSA), cathespin-D, HER-2/neu, CA-125, CA-19-9, CA-15-3, nuclear matrix protein, and bladder tumor-associated antigen
The red blood cell antigen named after the rhesus monkey is the Rh factor or Rh antigen. It is an important antigen in blood transfusions and plays a role in hemolytic diseases of the newborn when an Rh-negative mother carries an Rh-positive fetus.
Antigens.
The recognition of an antigen by a naive T or B cell is the most important event in establishing a primary immune response. This recognition leads to activation and proliferation of these cells, resulting in the generation of specific immune responses to combat the antigen.
Abwehrstoff or Antigen
the antigen must bind to the receptor
The Kell Antigen system is a system of antigens on the surface of human's red blood cells. The antigens are the distinguishing factor in the human blood type and also important for the immunology of the human body.
The O antigen is not an antigen that may be found on the surface of an erythrocyte. A and B antigens are present in the ABO blood group system, while the Rh antigen is part of the Rh blood group system. O blood type individuals lack A and B antigens on their red blood cells.
The Kell Antigen system is a system of antigens on the surface of human's red blood cells. The antigens are the distinguishing factor in the human blood type and also important for the immunology of the human body.