So I'm reading about how mutations in DNA can be caused by oxidative damage. An example of a product of oxidative damage is given: 8-oxo-7-hydrodeoxyguanosine
My textbook says that this product frequently mispairs with A, resulting in a high level of G-->T transversions.
What I'm not understanding is why it's a G-->T transversion. If the 8-oxo-G is pairing with A, resulting an an A-G pair, isn't this a T-->G transversion? Or does the order not matter?