The atypical thiol–disulfide exchange protein α-DsbA2 from Wolbachia pipientis is a homotrimeric disulfide isomerase
The disulfide isomerase α-DsbA2 from Wolbachia pipientisis is unexpectedly homotrimeric and lacks the ‘shape-shifting’ conformational flexibility that defines another trimeric disulfide isomerase, ScsC from Proteus mirabilis.