ENZYME entry: EC 1.11.1.14
| Accepted Name |
| Lignin peroxidase.
|
| Alternative Name(s) |
| Diarylpropane oxygenase. |
| Diarylpropane peroxidase. |
| Ligninase I. |
| LiP. |
| Reaction catalysed |
| (3,4-dimethoxyphenyl)methanol + H(2)O(2) <=> 3,4-dimethoxybenzaldehyde + 2 H(2)O |
| Cofactor(s) |
| Heme.
|
| Comment(s) |
- Involved in the oxidative breakdown of lignin by white-rot
basidiomycete fungi.
- The enzyme from Phanerochaete chrysosporium oxidizes typical
peroxidase dye substrates at the heme iron, a reaction involving the
formation of Compound II (Fe(IV)=O); it also oxidizes (3,4-
dimethoxyphenyl)methanol (veratryl alcohol) to the radical cation.
- The bound veratryl alcohol radical is proposed to bring about the
oxidative cleavage of C-C and ether (C-O-C) bonds in lignin model
compounds of the diarylpropane and arylpropane-aryl ether type.
|
| Cross-references |
| PROSITE | PDOC00394 |
| BRENDA | 1.11.1.14 |
| EC2PDB | 1.11.1.14 |
| ExplorEnz | 1.11.1.14 |
| PRIAM enzyme-specific profiles | 1.11.1.14 |
| KEGG Ligand Database for Enzyme Nomenclature | 1.11.1.14 |
| IUBMB Enzyme Nomenclature | 1.11.1.14 |
| IntEnz | 1.11.1.14 |
| MEDLINE | Find literature relating to 1.11.1.14 |
| MetaCyc | 1.11.1.14 |
| UniProtKB/Swiss-Prot |
| P49012, LIG2_PHACH; | P21764, LIG3_PHACH; | P11542, LIG4_PHACH; |
| P11543, LIG5_PHACH; | P50622, LIG6_PHACH; | P06181, LIG8_PHACH; |
| P31837, LIGA_PHACH; | P20011, LIGA_TRAVE; | P31838, LIGB_PHACH; |
| P20012, LIGB_TRAVE; | P20013, LIGC_TRAVE; | P20010, LIG_PHLRA; |
|
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