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What is the enzyme that inactivates cAMP?
phosphodiesterase
Where are the blood antigens A B Rh located?
The blood antigens A, B, and Rh are located on the membrane of the red blood cell. These antigens are hereditary.
What does it mean when your blood is classified as code 96?
Code 96 donors have a particular combination of antigens that make their red cells rare. An antigen is a type of protein on the outer surface of the red blood cell. When a patient receives a transfusion of blood carrying the same antigens as his or her own blood, the donor red cells are "welcomed" into the body because they do not recognize the transfused cells are foreign. If the patient does not have the same antigens, they may develop antibodies to the antigens and their body may reject or react with future blood transfused with these antigens. Patients who are transfused very often can easily form antibodies (immune responses) to some red cell antigens. Once antibodies from, these patients require very precisely matched transfusions to prevent transfusion reactions and production of more antibodies. Some of the conditions that requireSickle Cell anemiaThalassemia (or Cooley's Anemia)LeukemiaChemotherapy Treatment
Do antibodies attack extracellular or intracellular antigens?
Antibodies can attack both extracellular and intracellular antigens.
What are the minor antigens in blood?
Blood can be typed by several other minor antigens, such as Kell, Duffy, and Lewis. These minor antigens can become important when a patient has received many transfusions.
How do antibodies react to antigens?
Type B antibodies react to type B antigens by begining to clump together, and the clumps may block blood vessels.
What happens if Coombs' tests are positive?
If the test is positive, the antigens that react will narrow the search for a cause
What are antigens determining blood type carried on?
Antigens, by definition, cause the body to produce antibodies which act against them. You inherit certain antigens which are on your red blood cells. Sometimes these antigens are absent from your RBC. If you are type B, you have B antigens. Type A has A antigens, AB has AB antigens and type O has no antigens. If you are type AB, you can receive AB blood from some one else.
When antibodies bind antigens the clumping of antigens result from?
There are four reactions when antibodies react with antigens: agglutination, precipitation, neutralization or activation of complement. Agglutination is the clumping process that you are looking for.
Serological testing is based on the fact that antibodies react specifically with an anigen all bacteria have the same antigens or the human body makes antibodies against bacteria?
AnswerThe human body makes specific antibodies to specific antigens (ex. proteins on a bacterial membrane) that it encounters. Bacteria do not all have the same antigens.* antibodies react specifically with an antigen
What is h and o antigens?
H antigens correspond to the antigenic type of the bacterial flagellaO antigens correspond to the antigenic type of the Lipopolysaccharide layer on the outer membrane of gram negative bacteriabacteria all have different antigenic types on their surface which react to different types of antibodies and are classified using this method. For example the pathogenic E. coli O157:H7 has the designation 157 for its O antigen meaning it will not react with antibodies with a different serotype.
What protein inactivates viruses?
Iron and fiber.
What is the enzyme that inactivates cAMP?
phosphodiesterase
If an individual is transfused with the wrong type blood the recipients antibodies react with the donors antigens eventually clumping and hemolyzing the donated RBC?
true
What is an antirepressor?
An antirepressor is an enzyme which blocks or inactivates a repressor.
What kind of anigen does type o blood have?
Type O blood does not have any antigens. This is the reason for O blood's universal donnor status. Since no antigens (proteins or polysaccharides) are present, they will no react negatively to any antibodies that other blood types possess.
Does Type B blood have A antigens?
No, type B blood does not have A antigens. Type B blood has B antigens.
