012  XG Blood Group
The XG blood group system consists of 2 antigens carried on 2 single-pass glycoproteins, encoded by the genes XG and CD99. The Xg and CD99 glycoproteins consist of 180 and about 186 amino acids, respectively.
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Antigens
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[1] Xga
[2] CD99
Reference Info
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Gene: CD99
Allele: CD99*01
Seq: NG_009174.1 (genomic), NM_002414.4 (transcript)
Entrez GeneID: 4267
Number of exons: 10
Gene: XG
Allele: XG*01. Acceptable: XG*A, or Xga if inferred by haemagglutination
Seq: NG_011627.1 (genomic), NM_175569.2 (transcript)
Entrez GeneID: 7499
Number of exons: 11