Table 4.
Presence of methionine biosynthesis pathways in the three enrichment cultures as detected using MG-RAST annotations
| |
# 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 |
|
|
|
|
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 |
A full diagram of this system is available through the SEED viewer at ( http://seed-viewer.theseed.org/seedviewer.cgi). Taxonomic abbreviations are as in Table 3.
*partial – 40% or greater of pathway must be detected.