COG4240 Predicted kinase [General function prediction only].

Phosphoglycerate mutase, co-factor-independent (iPGM); Catalyzes the interconversion of 2-phosphoglycerate and 3- phosphoglycerate.

COG4240 Predicted kinase [General function prediction only].

Putative D-3-phosphoglycerate dehydrogenase (PGDH); COG111 Phosphoglycerate dehydrogenase and related dehydrogenases [Amino acid transport and metabolism]; Belongs to the D-isomer specific 2-hydroxyacid dehydrogenase family.

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

Serine hydroxymethyltransferase (SHMT); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism.

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

COG527 Aspartokinases [Amino acid transport and metabolism].

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

Putative D-3-phosphoglycerate dehydrogenase (PGDH); COG111 Phosphoglycerate dehydrogenase and related dehydrogenases [Amino acid transport and metabolism]; Belongs to the D-isomer specific 2-hydroxyacid dehydrogenase family.

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

Homoserine dehydrogenase:ACT domain-containing protein; COG460 Homoserine dehydrogenase [Amino acid transport and metabolism].

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

Homoserine kinase:GHMP kinases putative ATP-binding domain-containing protein; Catalyzes the ATP-dependent phosphorylation of L-homoserine to L-homoserine phosphate; Belongs to the GHMP kinase family. Homoserine kinase subfamily.

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

Threonine synthase: Pyridoxal-5'-phosphate-dependent enzymes, beta family; Catalyzes the gamma-elimination of phosphate from L- phosphohomoserine and the beta-addition of water to produce L- threonine.

Putative Glycine cleavage H-protein; The glycine cleavage system catalyzes the degradation of glycine. The H protein shuttles the methylamine group of glycine from the P protein to the T protein.

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

Putative Glycine cleavage H-protein; The glycine cleavage system catalyzes the degradation of glycine. The H protein shuttles the methylamine group of glycine from the P protein to the T protein.

Putative Glycine cleavage T-protein (aminomethyl transferase); The glycine cleavage system catalyzes the degradation of glycine.

Putative Glycine cleavage H-protein; The glycine cleavage system catalyzes the degradation of glycine. The H protein shuttles the methylamine group of glycine from the P protein to the T protein.

Serine hydroxymethyltransferase (SHMT); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism.

Putative Glycine cleavage H-protein; The glycine cleavage system catalyzes the degradation of glycine. The H protein shuttles the methylamine group of glycine from the P protein to the T protein.

COG1249 Pyruvate/2-oxoglutarate dehydrogenase complex, dihydrolipoamide dehydrogenase (E3) component, and related enzymes [Energy production and conversion].

Putative Glycine cleavage H-protein; The glycine cleavage system catalyzes the degradation of glycine. The H protein shuttles the methylamine group of glycine from the P protein to the T protein.

COG75 Serine-pyruvate aminotransferase/archaeal aspartate aminotransferase [Amino acid transport and metabolism].

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

Aspartate Semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

Putative Glycine cleavage H-protein; The glycine cleavage system catalyzes the degradation of glycine. The H protein shuttles the methylamine group of glycine from the P protein to the T protein.

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

Putative Glycine cleavage T-protein (aminomethyl transferase); The glycine cleavage system catalyzes the degradation of glycine.

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

Serine hydroxymethyltransferase (SHMT); Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism.

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

Threonine dehydratase; Catalyzes the anaerobic formation of alpha-ketobutyrate and ammonia from threonine in a two-step reaction. The first step involved a dehydration of threonine and a production of enamine intermediates (aminocrotonate), which tautomerizes to its imine form (iminobutyrate). Both intermediates are unstable and short-lived. The second step is the nonenzymatic hydrolysis of the enamine/imine intermediates to form 2- ketobutyrate and free ammonia. In the low water environment of the cell, the second step is accelerated by RidA.

COG1003 Glycine cleavage system protein P (pyridoxal-binding), C-terminal domain [Amino acid transport and metabolism]; Belongs to the GcvP family.

COG1249 Pyruvate/2-oxoglutarate dehydrogenase complex, dihydrolipoamide dehydrogenase (E3) component, and related enzymes [Energy production and conversion].