Table 4 Presence of methionine biosynthesis pathways in the three enrichment cultures as detected using MG-RAST annotations
| Â | # Pathways complete/partial* | Taxonomic Classification of Pathways | ||||
|---|---|---|---|---|---|---|
Pathway | DonnaII | ANAS | KB-1 | DonnaII | ANAS | KB-1 |
Methionine synthesis | ||||||
Methylation pathway (from methylene-tetrahydrofolate and L-homocysteine) | 2 | 3 | 3 | Firm, γ-P | δ-P, Firm, γ-P | BC, δ-P, Firm |
betaine-homocysteine S-methyltransferase (BhmT) | 0 | 0 | 0 | Â | Â | Â |
Uptake of Methionine | ||||||
Methionine transporter MetT | 5 | 3 | 2 | δ-P, Firm, Fuso, γ-P, Spiro | δ-P, Firm, Fuso | BC, γ-P |
ABC Met transporter (3 components) | 5/2 | 4/2 | 0/1 | α-P, β-P, DT, ϵ-P, Firm/Act, γ-P | α-P, ϵ-P, Firm, γ-P/Act, β-P | None/Firm |