188.8.131.52: adenylyl-sulfate reductase (thioredoxin)
This is an abbreviated version!
For detailed information about adenylyl-sulfate reductase (thioredoxin), go to the full flat file. Reaction
thioredoxin disulfide +
5'-adenylyl sulfate thioredoxin Synonyms
5'-adenylylsulfate reductase, adenosine-5'-phosphosulfate reductase, adenylylsulfate reductase, APR, APR-B, APS reductase, PaAPR, PpAPR-B, thioredoxin dependent 5'-adenylylsulfate reductase, thioredoxin-dependent APS reductase
Cofactor on EC 184.108.40.206 - adenylyl-sulfate reductase (thioredoxin)
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5fold lower activity with dithiothreithol, 70fold lower activity with E. coli Grx1 or dithionite, 580fold lower activity with lipoic acid, no activity with ferredoxin
activity drops approx. 5fold in the absence of thioredoxin, glutathione can not replace thioredoxin
PpAPR-B does not contain the FeS cluster, which is believed to determine the substrate specificity of other APR enzymes from seed plants. The lack of the FeS cluster in PpAPR-B catalysis is connected with a lower turnover rate but higher stability of the protein. No activity with glutathione or DTT
PpAPR-B does not contain the FeS cluster, which is believed to determine the substrate specificity of other APR enzymes from seed plants