Why make a cofactor when you can get it for free?
Our work, led by @fabianmunder.bsky.social, shows that bacteria from 22 phyla use the high-affinity transporter PqqU to obtain the redox cofactor PQQ from the environment as an alternative to cofactor synthesis.
www.science.org/doi/10.1126/...
Diverse bacteria use the high-affinity membrane transport protein PqqU to scavenge the nutrient PQQ from the environment.
