Glycine cleavage system 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.

Glycine cleavage system T protein; Identified by match to protein family HMM PF01571; match to protein family HMM TIGR00528.

Serine hydroxymethyltransferase; 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; Belongs to the SHMT family.

2-oxoglutarate dehydrogenase, E3 component, lipoamide dehydrogenase; Identified by similarity to SP:O34324; match to protein family HMM PF00070; match to protein family HMM PF02852.

Threonine aldolase, low-specificity; Identified by similarity to SP:O50584.

Aminotransferase, class V; Identified by match to protein family HMM PF00266.

Proline dehydrogenase/delta-1-pyrroline-5-carboxylate dehydrogenase; Oxidizes proline to glutamate for use as a carbon and nitrogen source; Belongs to the aldehyde dehydrogenase family. In the N-terminal section; belongs to the proline dehydrogenase family.

Phosphoribosylformylglycinamidine synthase I.

succinyl-CoA synthase, beta/alpha subunits; Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The alpha subunit of the enzyme binds the substrates coenzyme A and phosphate, while succinate binding and nucleotide specificity is provided by the beta subunit.