Ii antigen system

Chemical structure of N-acetyllactosamine, the base unit in I and i antigens

The Ii antigen system is a human blood group system based upon a gene on chromosome 6 and consisting of the I antigen and the i antigen.^[1] The I antigen is normally present on the cell membrane of red blood cells in all adults, while the i antigen is present in fetuses and newborns.^[2]

^ Cite error: The named reference :3 was invoked but never defined (see the help page).
^ Castillo B, Dasgupta A, Klein K, Tint H, Wahed A (2018). "Red cell antigens and antibody". Transfusion Medicine for Pathologists. Elsevier. pp. 69–112. doi:10.1016/b978-0-12-814313-1.00005-8. ISBN 978-0-12-814313-1.

[:3-1] Cite error: The named reference :3 was invoked but never defined (see the help page).

[:0-2] Castillo B, Dasgupta A, Klein K, Tint H, Wahed A (2018). "Red cell antigens and antibody". Transfusion Medicine for Pathologists. Elsevier. pp. 69–112. doi:10.1016/b978-0-12-814313-1.00005-8. ISBN 978-0-12-814313-1.

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