Fig. 1
From: Hydrogenation of CO2 at ambient pressure catalyzed by a highly active thermostable biocatalyst
Schematic model of the hydrogen-dependent CO2 reductase of T. kivui. The enzyme complex consists of a [FeFe] hydrogenase subunit coupled to a metal-containing formate dehydrogenase subunit of the W-bis PGD super-family reductase family. Coupling is putatively achieved by two iron–sulfur cluster rich subunits. The model is based on the amino acid sequence of the protein