ABO System Flashcards

1
Q

Gene A:

A

Enzyme: A glycosyltransferase
Sugar: N-acetylgalactosamine
Substrate: H antigen
Antigen produced: A

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2
Q

Gene B:

A

Enzyme: B glycosyl transferase
Sugar: Galactose
Substrate: H substance
Antigen produced: B

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3
Q

Amount of H antigen on red cells:

A

Most H - O>A2>B>A2B>A1>A1B - Least H

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4
Q

Gene H:

A

Enzyme: H glycosyltransferase
Sugar: Fucose
Substrate: precursor substance
Antigen produced: H

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