Distribution of GC, PI and TF polymorphisms in a Spanish population sample from central Pyrenees

GC-, PI-, and TF-subtype determinations have been performed in a population from Central Pyrenees. The observed allele frequencies are as follows: GC*1F = 0.0582, GC*1S = 0.6199, GC*2 = 0.3219; PI*M1 = 0.6164, PI*M2 = 0.1884, PI*M3 = 0.0308, PI*M4 = 0.0171, PI*S = 0.1473 and TF*C1 = 0.7740, TF*C2 = 0.1712, TF*C3 = 0.0479, TF*B = 0.0069. In spite of the extreme values found for some alleles of the GC and PI systems, the data of the sample analyzed can be considered similar to those described in other populations of the Iberian Peninsula.