Table 2 Summary of the P/GLOB-related... | American Society of Hematology

Table 2

Summary of the P/GLOB-related blood group genetic and serologic findings in the rare persons whose cells were used in this study

Sample ID in this study	Genetic change		Cellular antigens*			Antibodies in serum†	Phenotype	Original description of the allele causing phenotype
Sample ID in this study	A4GALT	B3GALNT1	P1	P	P^k	Antibodies in serum†	Phenotype	Original description of the allele causing phenotype
p1	657delG	No change	−	−	−	P, P1, P^k	P	Hellberg et al¹⁴ (2003)
p2	548T>A	No change	−	−	−	P, P1, P^k	P	Steffensen et al¹³ (2000)
p3	548T>A	No change	−	−	−	P, P1, P^k	P	Steffensen et al¹³ (2000)
P₁^k-a	No change	811G>A	+	−	+	P	P₁^k	Hellberg et al⁹ (2002)
P₁^k-b	No change	538insA	+	−	+	P	P₁^k	Hellberg et al⁹ (2002)

Sample ID in this study	Genetic change		Cellular antigens*			Antibodies in serum†	Phenotype	Original description of the allele causing phenotype
Sample ID in this study	A4GALT	B3GALNT1	P1	P	P^k	Antibodies in serum†	Phenotype	Original description of the allele causing phenotype
p1	657delG	No change	−	−	−	P, P1, P^k	P	Hellberg et al¹⁴ (2003)
p2	548T>A	No change	−	−	−	P, P1, P^k	P	Steffensen et al¹³ (2000)
p3	548T>A	No change	−	−	−	P, P1, P^k	P	Steffensen et al¹³ (2000)
P₁^k-a	No change	811G>A	+	−	+	P	P₁^k	Hellberg et al⁹ (2002)
P₁^k-b	No change	538insA	+	−	+	P	P₁^k	Hellberg et al⁹ (2002)

+ indicates present; and −, absent.

The P1 antigen is present in P₁ and P₁^k phenotype samples, detectable with anti-P1 but absent in P₂ and P₂^k and p.

Anti-PP1P^k is also known as anti-Tj^a and is only found in individuals having the p phenotype.