fig1
![Association between the cytotoxic T-lymphocyte antigen-4 polymorphisms and breast cancer risk and prognosis](https://image.oaes.cc/5e9a83ec-0498-4377-b56f-d951ed9ba179/164.fig.1.png)
Figure 1. A gel image for the polymerase chain reaction-restriction fragment length polymorphism experiment which illustrates the band patterns of AA, AG and GG genotypes. Line M: molecular weight marker; Line 1: AG genotype; Lines 2 and 4: GG genotype; Line 3: AA genotype; Line 5: negative control