Improve the coherence of the text.
The GSTK1 enzyme is a homodimer and, like all GSTs, it contains a TRX-like domain and a helical domain. The GSTK1 is substantially different in GSTK1's secondary structure compared to the GSTs GSTs.
The GSTK1 enzyme is a homodimer and, like all GSTs, it contains a TRX-like domain and a helical domain. However, the GSTK1 is substantially different in its secondary structure compared to the other GSTs.