XCR_0729 cysteine synthase
       XCR_3523 cysK; cysteine synthase A
       XCR_0751 cystathionine gamma-synthase (CGS)
       XCR_0750 cystathionine beta-synthase
       XCR_1610 homocysteine S-methyltransferase
       XCR_1779 metH; methionine synthase
       XCR_1780 methionine synthase
       XCR_4190 5-methyltetrahydropteroyltriglutamate-homocysteine methyltransferase
       XCR_0939 metK; S-adenosylmethionine synthetase
       XCR_4039 samDC; S-adenosylmethionine decarboxylase proenzyme (AdoMetDC)
       XCR_0418 speE; spermidine synthase
       XCR_1826 transferase
       XCR_3428 conserved hypothetical protein
       XCR_2541 N-ethylammeline chlorohydrolase
       XCR_1540 purine phosphorylase, family 2
       XCR_1852 translation initiation factor IF-2B alpha subunit
       XCR_2071 sugar aldolase
       XCR_2069 2,3-diketo-5-methylthio-1-phosphopentane phosphatase
       XCR_2070 dioxygenase
       XCR_0111 aspC; aspartate aminotransferase
       XCR_0738 possible Sensor with GAF domain
       XCR_0927 ahcY; adenosylhomocysteinase
       XCR_2051 bifunctional aspartokinase-homoserine dehydrogenase 2 (ak-hd 2)
       XCR_3106 bifunctional diaminopimelate decarboxylase-asparta
       XCR_2883 asd; aspartate-semialdehyde dehydrogenase
       XCR_3232 homoserine dehydrogenase
       XCR_2497 metX; homoserine O-acetyltransferase
       XCR_3234 homoserine O-acetyltransferase
       XCR_3233 metB; O-succinylhomoserine (thiol)-lyase
       XCR_3406 O-acetylhomoserine sulfhydrylase: MetY
       XCR_1039 ilvE; branched-chain amino acid aminotransferase
       XCR_3733 glutamate--cysteine ligase
       XCR_3293 gshB; glutathione synthase
       XCR_1811 3-mercaptopyruvate sulfurtransferase
       XCR_2027 aspartate racemase
       XCR_1121 mdh; malate dehydrogenase
       XCR_3230 sdaA; L-serine ammonia-lyase
       XCR_0024 D-3-phosphoglycerate dehydrogenase
       XCR_2077 D-3-phosphoglycerate dehydrogenase
       XCR_1868 serC; phosphoserine aminotransferase

K01738 cysK; cysteine synthase [EC:2.5.1.47]
K01738 cysK; cysteine synthase [EC:2.5.1.47]
K01758 CTH; cystathionine gamma-lyase [EC:4.4.1.1]
K01697 CBS; cystathionine beta-synthase [EC:4.2.1.22]
K00547 mmuM; homocysteine S-methyltransferase [EC:2.1.1.10]
K00548 metH; 5-methyltetrahydrofolate--homocysteine methyltransferase [EC:2.1.1.13]
K00548 metH; 5-methyltetrahydrofolate--homocysteine methyltransferase [EC:2.1.1.13]
K00549 metE; 5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase [EC:2.1.1.14]
K00789 metK; S-adenosylmethionine synthetase [EC:2.5.1.6]
K01611 speD; S-adenosylmethionine decarboxylase [EC:4.1.1.50]
K00797 speE; spermidine synthase [EC:2.5.1.16]
K00797 speE; spermidine synthase [EC:2.5.1.16]
K05810 LACC1; purine-nucleoside/S-methyl-5'-thioadenosine phosphorylase / adenosine deaminase [EC:2.4.2.1 2.4.2.28 3.5.4.4]
K12960 mtaD; 5-methylthioadenosine/S-adenosylhomocysteine deaminase [EC:3.5.4.31 3.5.4.28]
K19696 mtiP; 5'-methylthioinosine phosphorylase [EC:2.4.2.44]
K08963 mtnA; methylthioribose-1-phosphate isomerase [EC:5.3.1.23]
K08964 mtnB; methylthioribulose-1-phosphate dehydratase [EC:4.2.1.109]
K09880 mtnC; enolase-phosphatase E1 [EC:3.1.3.77]
K08967 mtnD; 1,2-dihydroxy-3-keto-5-methylthiopentene dioxygenase [EC:1.13.11.53 1.13.11.54]
K00832 tyrB; aromatic-amino-acid transaminase [EC:2.6.1.57]
K08968 msrC; L-methionine (R)-S-oxide reductase [EC:1.8.4.14]
K01251 AHCY; adenosylhomocysteinase [EC:3.13.2.1]
K12524 thrA; bifunctional aspartokinase / homoserine dehydrogenase 1 [EC:2.7.2.4 1.1.1.3]
K12526 lysAC; bifunctional diaminopimelate decarboxylase / aspartate kinase [EC:4.1.1.20 2.7.2.4]
K00133 asd; aspartate-semialdehyde dehydrogenase [EC:1.2.1.11]
K00003 hom; homoserine dehydrogenase [EC:1.1.1.3]
K00641 metX; homoserine O-acetyltransferase/O-succinyltransferase [EC:2.3.1.31 2.3.1.46]
K00641 metX; homoserine O-acetyltransferase/O-succinyltransferase [EC:2.3.1.31 2.3.1.46]
K01739 metB; cystathionine gamma-synthase [EC:2.5.1.48]
K01740 metY; O-acetylhomoserine (thiol)-lyase [EC:2.5.1.49]
K00826 E2.6.1.42; branched-chain amino acid aminotransferase [EC:2.6.1.42]
K01919 gshA; glutamate--cysteine ligase [EC:6.3.2.2]
K01920 gshB; glutathione synthase [EC:6.3.2.3]
K01011 TST; thiosulfate/3-mercaptopyruvate sulfurtransferase [EC:2.8.1.1 2.8.1.2]
K25316 racX; amino-acid racemase [EC:5.1.1.10]
K00024 mdh; malate dehydrogenase [EC:1.1.1.37]
K01752 E4.3.1.17; L-serine dehydratase [EC:4.3.1.17]
K00058 serA; D-3-phosphoglycerate dehydrogenase / 2-oxoglutarate reductase [EC:1.1.1.95 1.1.1.399]
K00058 serA; D-3-phosphoglycerate dehydrogenase / 2-oxoglutarate reductase [EC:1.1.1.95 1.1.1.399]
K00831 serC; phosphoserine aminotransferase [EC:2.6.1.52]