| IED ID | IndEnz0016000211 |
| Enzyme Type ID | tyrosinase000211 |
| Protein Name |
Polyphenol oxidase I, chloroplastic PPO-I EC 1.10.3.1 Catechol oxidase I |
| Gene Name | co-1 |
| Organism | Ipomoea batatas (Sweet potato) (Convolvulus batatas) |
| Taxonomic Lineage | cellular organisms Eukaryota Viridiplantae Streptophyta Streptophytina Embryophyta Tracheophyta Euphyllophyta Spermatophyta Magnoliopsida Mesangiospermae eudicotyledons Gunneridae Pentapetalae asterids lamiids Solanales Convolvulaceae Ipomoeeae Ipomoea Ipomoea batatas (Sweet potato) (Convolvulus batatas) |
| Enzyme Sequence | APIQAPEISKCVVPPADLPPGAVVDNCCPPVASNIVDYKLPAVTTMKVRPAAHTMDKDAIAKFAKAVELMKALPADDPRNFYQQALVHCAYCNGGYDQVNFPDQEIQVHNSWLFFPFHRWYLYFYERILGKLIGDPSFGLPFWNWDNPGGMVLPDFLNDSTSSLYDSNRNQSHLPPVVVDLGYNGADTDVTDQQRITDNLALMYKQMVTNAGTAELFLGKAYRAGDAPSPGAGSIETSPHIPIHRWVGDPRNTNNEDMGNFYSAGRDIAFYCHHSNVDRMWTIWQQLAGKPRKRDYTDSDWLNATFLFYDENGQAVKVRIGDSLDNQKMGYKYAKTPLPWLDSKPVPTKKKGGYASKSKAPFVASVFPVTLDKVVQVKVARPKKSRSAEEKEAEEEILLIVGIEVEIDKYAKFDVYLNDSDDPSGGKDKAEYAGSFAHLPHKHKGMKKIRTTLSLGLNEPLEDLGAEDDDTILVTLAPKVGGGVVSVDNVKVVYGS |
| Enzyme Length | 496 |
| Uniprot Accession Number | Q9ZP19 |
| Absorption | |
| Active Site | |
| Activity Regulation | ACTIVITY REGULATION: Inhibited by phenylthiourea. |
| Binding Site | |
| Calcium Binding | |
| catalytic Activity | CATALYTIC ACTIVITY: Reaction=2 catechol + O2 = 2 1,2-benzoquinone + 2 H2O; Xref=Rhea:RHEA:21632, ChEBI:CHEBI:15377, ChEBI:CHEBI:15379, ChEBI:CHEBI:17253, ChEBI:CHEBI:18135; EC=1.10.3.1; |
| DNA Binding | |
| EC Number | 1.10.3.1 |
| Enzyme Function | FUNCTION: Catalyzes the oxidation of mono- and o-diphenols to o-diquinones. |
| Temperature Dependency | |
| PH Dependency | |
| Pathway | |
| nucleotide Binding | |
| Features | Beta strand (9); Chain (1); Cross-link (1); Disulfide bond (2); Helix (17); Metal binding (6); Sequence conflict (10); Turn (3) |
| Keywords | 3D-structure;Chloroplast;Copper;Disulfide bond;Metal-binding;Oxidoreductase;Plastid;Thioether bond;Thylakoid |
| Interact With | |
| Induction | |
| Subcellular Location | SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid lumen {ECO:0000250}. |
| Modified Residue | |
| Post Translational Modification | |
| Signal Peptide | |
| Structure 3D | X-ray crystallography (4) |
| Cross Reference PDB | 1BT1; 1BT2; 1BT3; 1BUG; |
| Mapped Pubmed ID | - |
| Motif | |
| Gene Encoded By | |
| Mass | 55,011 |
| Kinetics | |
| Metal Binding | METAL 88; /note=Copper A; /evidence=ECO:0000269|PubMed:9846879; METAL 109; /note=Copper A; /evidence=ECO:0000269|PubMed:9846879; METAL 118; /note=Copper A; /evidence=ECO:0000269|PubMed:9846879; METAL 240; /note=Copper B; /evidence=ECO:0000269|PubMed:9846879; METAL 244; /note=Copper B; /evidence=ECO:0000269|PubMed:9846879; METAL 274; /note=Copper B; /evidence=ECO:0000269|PubMed:9846879 |
| Rhea ID | RHEA:21632 |
| Cross Reference Brenda | 1.10.3.1; |