MetaCyc Pathway: glycine betaine degradation I in Pseudomonas fluorescens FW300-N2E3

MetaCyc Pathway: glycine betaine degradation I in Pseudomonas fluorescens FW300-N2E3

Betaine--homocysteine S-methyltransferase:
glycine betaine + L-homocysteine→N,N-dimethylglycine + L-methionine (EC 2.1.1.5)

No genes

Dimethylglycine oxidase:
N,N-dimethylglycine + dioxygen + a tetrahydrofolate→sarcosine + hydrogen peroxide + a 5,10-methylenetetrahydrofolate (EC 1.5.3.10)

No genes

sarcosine + dioxygen + a tetrahydrofolate→glycine + hydrogen peroxide + a 5,10-methylenetetrahydrofolate (EC 1.5.3.24)

Sarcosine oxidase:
sarcosine + dioxygen + H₂O→glycine + formaldehyde + hydrogen peroxide (EC 1.5.3.1)

Glycine hydroxymethyltransferase (in reverse):
glycine + a 5,10-methylenetetrahydrofolate + H₂O→L-serine + a tetrahydrofolate (EC 2.1.2.1)

L-serine ammonia-lyase:
L-serine→2-aminoprop-2-enoate + H₂O (EC 4.3.1.17)

Tryptophanase:
2-aminoprop-2-enoate→2-iminopropanoate (spontaneous) (EC 4.1.99.1; 4.1.99.2; 4.3.1.13; 4.3.1.17; 4.3.1.18; 4.3.3.8; 4.4.1.1; 4.4.1.13; 4.4.1.15; 4.4.1.25; 4.4.1.28; 4.4.1.35; 4.5.1.2)

2-iminopropanoate + H₂O→pyruvate + ammonium (spontaneous) (EC 3.5.99.10; 4.1.99.1; 4.1.99.2; 4.3.1.13; 4.3.1.17; 4.3.1.18; 4.3.3.8; 4.4.1.1; 4.4.1.13; 4.4.1.15; 4.4.1.25; 4.4.1.28; 4.4.1.35; 4.5.1.2)

Links:

Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information