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Updated: Aug 14, 2026

Characterization of Membrane Transporters by Heterologous Expression in E. coli and Production of Membrane Vesicles
Published on: December 31, 2019
Homologous mutations in two diverse sulphate transporters have similar effects
O K Khurana1, L A Coupland, M C Shelden
1Division of Biochemistry and Molecular Biology, The Faculties, Australian National University, 0200, Canberra, A.C.T., Australia.
Abstract:
Mutations in the human sulphate transporter gene, DTDST, have been implicated in several diseases. Analysis of affected patients has linked disease symptoms to faulty sulphate transporter activity. We have reproduced two of these mutations in SHST1, a homologous member of the family isolated from the tropical legume, Stylosanthes hamata. Both mutations significantly reduce sulphate transport activity of SHST1. These results indicate that conserved residues between distinct members of the family may share essential roles in structure or function. The results also suggest that putative helix 9 may be important for stability and/or trafficking of SHST1 to the plasma membrane.
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