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• Antigens Pk & P are on different cells.
• Antigen P1 is only on RBC.
• Pk Ag is the precursor of P Ag. The
gene of Pk is on chromosome 22. It
produts Galactosil Transferase.
• The gene of P is on chromosome 3.
•Major Phenotypes: P1,P2•Some of person who has P2 Ag
nuturaly has Anti P1•Anti P Biphasic Donath Landstainer PCH
(Paroxysmal Cold Hemoglobinuria)
Lutheran•Chromosome 19Chromosome 19•Its near the Se geneIts near the Se gene•It has 18 AgsIt has 18 Ags1.1.8 Ags inherent from parents8 Ags inherent from parents
2.2.10 Ags excite in most of 10 Ags excite in most of pepole pepole
Lutheran •1: AllelsLu1(Lua) / Lu2(Lub) Lu6 / Lu9Lu8 / Lu14Lu18(Aua) / Lu19(Aub)•2: Inter and Intra Individual
Variation •3: Laminin recipient