The frequencies of the serum amyloid A2 alleles in healthy (Turkish, Azerbaijan and Kazakh) populations

The Amyloid A1 (AA1) and A2 (AA2) proteins, which result from proteolytic cleavage of the Serum Amyloid A1 (SAA1) and A2 (SAA2) proteins, are major protein components of the Amyloid A deposits found in secondary amyloidosis. This study determines frequency of serum amyloid A2 alleles (alpha, beta) in healthy Turkish, Azerbaijan and Kazakh subjects. Two hundred Turkish, sixty five Azerbaijan and sixty five Kazakh healthy individuals were studied by previously described the PCR-RFLP methods. Our data revealed that the frequencies of the alpha and beta alleles at the SAA2 locus in the Turkish healthy population were different when compared to those in Azerbaijan and Kazakh healthy populations (p = 0.014 and p = 0.02), respectively. In contrast, the difference between alpha and beta alleles at the SAA2 locus was not different in both Kazakh and Azerbaijan healthy populations (p = 0.882).