Figure 1. A schematic illustration depicting the origin time, environmental context, and evolutionary trajectory of dissimilatory sulfite reductase. (IMAGE)

SciOpen

Figure 1. A schematic illustration depicting the origin time, environmental context, and evolutionary trajectory of dissimilatory sulfite reductase.

Caption

The diagram shows the proposed hot origin of the system in the Paleoarchean Era (3.51 Ga) at an estimated temperature of 73°C, the reconstruction of the ancestral DsrAB enzyme and its subsequent evolution and diversification into moderate thermal and mesothermal environments.

Credit

mLife

Usage Restrictions

News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only.

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.