| MMDBr0025919 | L-Histidine | Malonic semialdehyde | 4-amino-5-hydroxymethyl-2-methylpyrimidine phosphate synthase | Synthesis | Not Available | 0 | 10 | RHEA |
| MMDBr0025918 | L-Histidine | Malonic semialdehyde | 4-amino-5-hydroxymethyl-2-methylpyrimidine phosphate synthase | Synthesis | Not Available | 0 | 10 | RHEA |
| MMDBr0025621 | L-Cysteine | Hydrogen Ion | L-cysteine S-thiosulfotransferase subunit SoxA | Transfer of a L-cysteine S-thiosulfo group | Not Available | 0 | 10 | RHEA |
| MMDBr0025566 | Hydrogen Ion | Water | Sphingolipid C4-hydroxylase SUR2 | Hydroxylation | Not Available | 0 | 1 | RHEA |
| MMDBr0025565 | Hydrogen Ion | Water | Sphingolipid C4-hydroxylase SUR2 | Hydroxylation | Not Available | 0 | 1 | RHEA |
| MMDBr0025500 | Hydrogen Ion | Water | Delta(7)-sterol 5(6)-desaturase | Desaturation | Not Available | 0 | 2 | RHEA |
| MMDBr0025499 | Hydrogen Ion | Water | Delta(7)-sterol 5(6)-desaturase | Desaturation | Not Available | 0 | 7 | RHEA |
| MMDBr0025387 | Thiosulfate | Hydrogen Ion | L-cysteine S-thiosulfotransferase subunit SoxA | Transfer of a L-cysteine S-thiosulfo group | Not Available | 0 | 10 | RHEA |
| MMDBr0025374 | Iron(3+) | Hydrogen Ion | Quinoprotein ethanol dehydrogenase | Dehydrogenation | Not Available | 0 | 2 | RHEA |
| MMDBr0025373 | Iron(3+) | Hydrogen Ion | Quinoprotein ethanol dehydrogenase | Dehydrogenation | Not Available | 0 | 2 | RHEA |
| MMDBr0025372 | Iron(3+) | Hydrogen Ion | Methanol dehydrogenase [cytochrome c] subunit 1 | Dehydrogenation | Not Available | 0 | 8 | RHEA |
| MMDBr0025234 | Hydrogen Ion | Water | Sphingolipid delta(4)-desaturase | Desaturation | Not Available | 0 | 3 | RHEA |
| MMDBr0025233 | Hydrogen Ion | Water | Ceramide very long chain fatty acid hydroxylase SCS7 | Hydroxylation | Not Available | 0 | 1 | RHEA |
| MMDBr0025232 | Hydrogen Ion | Water | Ceramide very long chain fatty acid hydroxylase SCS7 | Hydroxylation | Not Available | 0 | 1 | RHEA |
| MMDBr0025229 | Hydrogen Ion | Water | Acyl-lipid omega-3 desaturase (cytochrome b5), endoplasmic reticulum | Desaturation | Not Available | 0 | 1 | RHEA |
| MMDBr0025228 | Hydrogen Ion | Water | Sphingolipid C4-hydroxylase SUR2 | Hydroxylation | Not Available | 0 | 1 | RHEA |
| MMDBr0025227 | Hydrogen Ion | Water | Sphingolipid C4-hydroxylase SUR2 | Hydroxylation | Not Available | 0 | 1 | RHEA |
| MMDBr0025221 | Hydrogen Ion | Water | Delta 8-(E)-sphingolipid desaturase | Desaturation | Not Available | 0 | 5 | RHEA |
| MMDBr0025220 | Hydrogen Ion | Water | Acyl-lipid (8-3)-desaturase | Desaturation | Not Available | 0 | 1 | RHEA |
| MMDBr0025219 | Hydrogen Ion | Water | Acyl-lipid (8-3)-desaturase | Desaturation | Not Available | 0 | 1 | RHEA |
| MMDBr0024725 | Hydrogen Ion | Water | Plasmanylethanolamine desaturase | Desaturation | Not Available | 0 | 1 | RHEA |
| MMDBr0024724 | Hydrogen Ion | Water | Plasmanylethanolamine desaturase | Desaturation | Not Available | 0 | 1 | RHEA |
| MMDBr0024699 | Water | Hydrogen Ion | Quinohemoprotein amine dehydrogenase subunit gamma | Dehydrogenation | Not Available | 0 | 1 | RHEA |
| MMDBr0024698 | Water | Hydrogen Ion | Quinohemoprotein amine dehydrogenase subunit gamma | Dehydrogenation | Not Available | 0 | 1 | RHEA |
| MMDBr0024651 | Iron(3+) | Hydrogen Ion | Polyvinylalcohol dehydrogenase | Dehydrogenation | Not Available | 0 | 2 | RHEA |
