Ab Negative Blood Type Antigens

December 18, 2020

The plasma contains both anti a and anti b antibodies but the surface of the red blood cells does not contain any a or b antigens. There are four blood types found in humans.

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The lutheran antigen systems is a classification of human blood based on the presence of substances called lutheran antigens on the surfaces of red blood cells.

Ab negative blood type antigens. The system is based on the expression of two codominant alleles designated lua and lub. Population have ab negative blood making it the least common blood type among americans. Patients with ab negative blood type can receive red blood cells from all negative blood types.

Once the type a antigens are kept at bay your blood cells show type b as the dominant type. An ab person has neither a b or rh antibodies in their plasma. Therefore you can receive blood from a donor.

You can receive type b or type o blood and you can donate to those with type b or type ab blood. 1 ab negative 2 b negative and 3 ab positive a and b antigens only represent two of approximately 600 other known antigens that can differentiate blood types. Blood type depends on which antigens are present on the red blood cells and the antibodies in the blood serum explains the national center for biotechnology information.

If you are blood type ab your cells do not make antibodies against type a or type b surface antigens. There are four major blood groups determined by the presence or absence of two antigens a and b on the surface of red blood cells. Individuals with type ab can receive any abo blood type.

There are 19 known lutheran antigens. Having the presence of a and b antigens and the absence of the rh antigen ab negative blood type can only receive blood types from ab b a and o. Ab can receive ab b a and o a recipient with an ab negative blood type has both the antigens a and b on the blood but without the rh antigen.

All of these antigena arise from variations in a gene called bcam basal cell adhesion molecule. A b ab and o. Type ab negative less than 1 of the u s.

On the red blood cell there are a b antigens and no rh or d antigens. In addition to the a and b antigens there is a protein called the rh factor which can be either present or absent creating the 8 most common blood types a a b b o o ab ab.

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