fig3
![Folate-producing bifidobacteria: metabolism, genetics, and relevance](https://image.oaes.cc/b54982f8-339d-4f5c-a393-374da9609c80/mrr2059.fig.3.jpg)
Figure 3. Folate-mediated one-carbon metabolism. There are two interrelated cycles in folate metabolism that compete for folate cofactors, namely DNA biosynthesis (represented by blue) and methylation (represented by green). In addition, the trans-sulfuration pathway (depicted in pink) breaks down homocysteine. 5,10-methenylTHF: 5,10-methenyltetrahydrofolate; 5,10-methyleneTHF: