Target Name: LOC401913
NCBI ID: G401913
Other Name(s): ABO blood group (transferase A, alpha 1-3-N-acetylgalactosaminyltransferase; transferase B, alpha 1-3-galactosyltransferase) pseudogene

ABO Blood Group System: Encoding ABO-AG Antigen and Antibodies

LOC401913 is a pseudogene that encodes for a protein known as ABO blood group antigen (ABO-AG), which is a type of surface antigen found on the surface of red blood cells. ABO-AG is a key component of the ABO blood group system, which is a group of antigens that distinguishes individuals from one another based on their blood. The ABO blood group system is one of the most important antigens in the immune system, as it plays a key role in the production of antibodies and the rejection of foreign substances in the body.

The ABO blood group system consists of four antigens: A, B, and O, which are found on the surface of red blood cells, and a fifth antigen, called H, which is found on the surface of some white blood cells. The antigens in the ABO system are surface antigens, which means that they are proteins that are exposed to the outside of the cell and can be recognized by antibodies produced by the immune system.

The ABO blood group system is important for several reasons. First, it helps the body to identify and reject foreign substances, such as bacteria, viruses, and diseases. Second, it helps to maintain the diversity of the blood supply by ensuring that only compatible antigens are allowed to enter the body. Third, it is involved in the production of antibodies, which are proteins that are used to fight off infections and other harmful substances. Finally, the ABO system is also involved in the regulation of the immune response, as it can cause the body's immune system to produce antibodies that are too strong or too weak.

The ABO blood group system is made up of two main proteins: transferase A and transferase B. Transferase A is a enzyme that adds a specific acetyl group to the alpha-glucosaminyl residue of the ABO-AG antigen. This modification is important for the antigen to be able to interact with the cell surface receptor called CD71, which is responsible for recognizing the antigen on the surface of the red blood cell. Transferase B is an enzyme that adds a specific Galactosyl group to the alpha-glucosaminyl residue of the ABO-AG antigen. This modification is important for the antigen to be able to interact with the cell surface receptor called Fc纬R1, which is responsible for recognizing the antigen on the surface of the white blood cell.

The ABO blood group system is a complex system that involves the production of both antibodies and antigens. The production of antibodies is the primary function of the immune system, and it is carried out by B cells, which are a type of white blood cell. When a B cell encounters an antigen that it recognizes as foreign, it becomes activated and begins to divide and differentiate into a plasma cell. The plasma cell produces antibodies that are specific to the antigen, and these antibodies are then secreted into the bloodstream to help fight off the foreign substance.

The ABO blood group system is also involved in the regulation of the immune response. For example, if the body encounters an antigen that it recognizes as foreign, it may produce antibodies that are too strong or too weak. The ABO blood group system helps to regulate the production of antibodies by ensuring that only compatible antigens are allowed to enter the body. Additionally, the ABO blood group system helps to regulate the production of antigens by ensuring that the level of an antigen in the body is controlled.

In conclusion, LOC401913 is a pseudogene that encodes for a protein known as ABO blood group antigen. The ABO blood group system is important for several reasons, including helping the body to identify and reject foreign substances, maintaining the diversity of the blood supply,

Protein Name: ABO Blood Group (transferase A, Alpha 1-3-N-acetylgalactosaminyltransferase; Transferase B, Alpha 1-3-galactosyltransferase) Pseudogene

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