HSF2 and Infertility: (Table 3 - see PDF) In addition, frequencies of CC, CA and AA genotypes of rs45504694 (C/A) for HSF2 gene in all infertile, azoospermic and asthenospermic patients were observed as 62.8%, 37.2% and 0%;62.3%, 37.7% and 0% and 65.9%, 34.1% and 0%, while in controls it was 64.2%, 35.6% and 0.2%, respectively.