| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| metA | metB | STM4182 | STM4100 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | 0.998 |
| metA | metC | STM4182 | STM3161 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | Cystathionine beta-lyase; Catalyzes the cleavage of cystathionine to homocysteine, pyruvate and ammonia during methionine biosynthesis. | 0.894 |
| metA | metE | STM4182 | STM3965 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | 5-methyltetrahydropteroyltriglutamate- homocysteine S-methyltransferase; Catalyzes the transfer of a methyl group from 5- methyltetrahydrofolate to homocysteine resulting in methionine formation; Belongs to the vitamin-B12 independent methionine synthase family. | 0.900 |
| metA | metF | STM4182 | STM4105 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | 5,10-methylenetetrahydrofolate reductase. (SW:METF_SALTY); Belongs to the methylenetetrahydrofolate reductase family. | 0.984 |
| metA | metH | STM4182 | STM4188 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase; Catalyzes the transfer of a methyl group from methyl- cobalamin to homocysteine, yielding enzyme-bound cob(I)alamin and methionine. Subsequently, remethylates the cofactor using methyltetrahydrofolate (By similarity). | 0.893 |
| metA | metJ | STM4182 | STM4099 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | Transcriptional repressor of all met genes but metF; This regulatory protein, when combined with SAM (S- adenosylmethionine) represses the expression of the methionine regulon and of enzymes involved in SAM synthesis. It is also autoregulated (By similarity); Belongs to the MetJ family. | 0.746 |
| metA | metL | STM4182 | STM4101 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | Aspartokinase II; Bifunctional; similar to E. coli aspartokinase II and homoserine dehydrogenase II (AAC76922.1); Blastp hit to AAC76922.1 (810 aa), 94% identity in aa 1 - 810; In the C-terminal section; belongs to the homoserine dehydrogenase family. | 0.967 |
| metA | metR | STM4182 | STM3964 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | Regulator for metE and metH; Control of the last step in methionine biosynthesis; MetR is a positive activator of the metA, metE and metH genes. It is also a negative regulator of its own expression; Belongs to the LysR transcriptional regulatory family. | 0.796 |
| metA | ybdL | STM4182 | STM0603 | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | Similar to E. coli putative aminotransferase (AAC73701.1); Blastp hit to AAC73701.1 (386 aa), 85% identity in aa 1 - 386. | 0.607 |
| metB | metA | STM4100 | STM4182 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | 0.998 |
| metB | metC | STM4100 | STM3161 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | Cystathionine beta-lyase; Catalyzes the cleavage of cystathionine to homocysteine, pyruvate and ammonia during methionine biosynthesis. | 0.972 |
| metB | metE | STM4100 | STM3965 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | 5-methyltetrahydropteroyltriglutamate- homocysteine S-methyltransferase; Catalyzes the transfer of a methyl group from 5- methyltetrahydrofolate to homocysteine resulting in methionine formation; Belongs to the vitamin-B12 independent methionine synthase family. | 0.992 |
| metB | metF | STM4100 | STM4105 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | 5,10-methylenetetrahydrofolate reductase. (SW:METF_SALTY); Belongs to the methylenetetrahydrofolate reductase family. | 0.993 |
| metB | metH | STM4100 | STM4188 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase; Catalyzes the transfer of a methyl group from methyl- cobalamin to homocysteine, yielding enzyme-bound cob(I)alamin and methionine. Subsequently, remethylates the cofactor using methyltetrahydrofolate (By similarity). | 0.994 |
| metB | metJ | STM4100 | STM4099 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | Transcriptional repressor of all met genes but metF; This regulatory protein, when combined with SAM (S- adenosylmethionine) represses the expression of the methionine regulon and of enzymes involved in SAM synthesis. It is also autoregulated (By similarity); Belongs to the MetJ family. | 0.980 |
| metB | metL | STM4100 | STM4101 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | Aspartokinase II; Bifunctional; similar to E. coli aspartokinase II and homoserine dehydrogenase II (AAC76922.1); Blastp hit to AAC76922.1 (810 aa), 94% identity in aa 1 - 810; In the C-terminal section; belongs to the homoserine dehydrogenase family. | 0.998 |
| metB | metR | STM4100 | STM3964 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | Regulator for metE and metH; Control of the last step in methionine biosynthesis; MetR is a positive activator of the metA, metE and metH genes. It is also a negative regulator of its own expression; Belongs to the LysR transcriptional regulatory family. | 0.991 |
| metB | ybdL | STM4100 | STM0603 | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | Similar to E. coli putative aminotransferase (AAC73701.1); Blastp hit to AAC73701.1 (386 aa), 85% identity in aa 1 - 386. | 0.930 |
| metC | metA | STM3161 | STM4182 | Cystathionine beta-lyase; Catalyzes the cleavage of cystathionine to homocysteine, pyruvate and ammonia during methionine biosynthesis. | Homoserine transsuccinylase; Transfers a succinyl group from succinyl-CoA to L-homoserine, forming succinyl-L-homoserine. | 0.894 |
| metC | metB | STM3161 | STM4100 | Cystathionine beta-lyase; Catalyzes the cleavage of cystathionine to homocysteine, pyruvate and ammonia during methionine biosynthesis. | Similar to E. coli cystathionine gamma-synthase (AAC76921.1); Blastp hit to AAC76921.1 (386 aa), 96% identity in aa 1 - 386. | 0.972 |