| IED ID | IndEnz0010000497 |
| Enzyme Type ID | esterase000497 |
| Protein Name |
Pectinesterase/pectinesterase inhibitor PPE8B Includes: Pectinesterase inhibitor PPE8B Pectin methylesterase inhibitor PPE8B ; Pectinesterase PPE8B PE PPE8B EC 3.1.1.11 Pectin methylesterase PPE8B |
| Gene Name | |
| Organism | Prunus persica (Peach) (Amygdalus persica) |
| Taxonomic Lineage | cellular organisms Eukaryota Viridiplantae Streptophyta Streptophytina Embryophyta Tracheophyta Euphyllophyta Spermatophyta Magnoliopsida Mesangiospermae eudicotyledons Gunneridae Pentapetalae rosids fabids Rosales Rosaceae Amygdaloideae Amygdaleae Prunus Prunus persica (Peach) (Amygdalus persica) |
| Enzyme Sequence | MPYLLMASHNPLPAGKQLLLLVLLCAFFSSSFIPFASCSITDDLQTQCLKVSATEFAGSLKDTIDAVQQVASILSQFANAFGDFRLANAISDCLDLLDFSADELNWSLSASQNQKGKNNSTGKLSSDLRTWLSAALVNQDTCSNGFEGTNSIVQGLISAGLGQVTSLVQELLTQVHPNSNQQGPNGQIPSWVKTKDRKLLQADGVSVDAIVAQDGTGNFTNVTDAVLAAPDYSMRRYVIYIKRGTYKENVEIKKKKWNLMMIGDGMDATIISGNRSFVDGWTTFRSATFAVSGRGFIARDITFENTAGPEKHQAVALRSDSDLSVFYRCNIRGYQDTLYTHTMRQFYRDCKISGTVDFIFGDATVVFQNCQILAKKGLPNQKNSITAQGRKDPNEPTGISIQFCNITADSDLEAASVNSTPTYLGRPWKLYSRTVIMQSFLSNVIRPEGWLEWNGDFALNSLFYGEYMNYGPGAGLGSRVKWPGYQVFNESTQAKNYTVAQFIEGNLWLPSTGVKYTAEFGV |
| Enzyme Length | 522 |
| Uniprot Accession Number | Q43062 |
| Absorption | |
| Active Site | ACT_SITE 336; /note=Proton donor; for pectinesterase activity; /evidence=ECO:0000255|PROSITE-ProRule:PRU10040; ACT_SITE 357; /note=Nucleophile; for pectinesterase activity; /evidence=ECO:0000255|PROSITE-ProRule:PRU10040 |
| Activity Regulation | |
| Binding Site | BINDING 283; /note=Substrate; for pectinesterase activity; /evidence=ECO:0000250; BINDING 313; /note=Substrate; for pectinesterase activity; /evidence=ECO:0000250; BINDING 426; /note=Substrate; for pectinesterase activity; /evidence=ECO:0000250; BINDING 428; /note=Substrate; for pectinesterase activity; /evidence=ECO:0000250 |
| Calcium Binding | |
| catalytic Activity | CATALYTIC ACTIVITY: Reaction=[(1->4)-alpha-D-galacturonosyl methyl ester](n) + n H2O = [(1->4)-alpha-D-galacturonosyl](n) + n H(+) + n methanol; Xref=Rhea:RHEA:22380, Rhea:RHEA-COMP:14570, Rhea:RHEA-COMP:14573, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:17790, ChEBI:CHEBI:140522, ChEBI:CHEBI:140523; EC=3.1.1.11; |
| DNA Binding | |
| EC Number | 3.1.1.11 |
| Enzyme Function | FUNCTION: May have roles in the deposition of pectin in developing tissues and in the wall loosening and cell separation that occurs in cell expansion, fruit ripening and abscission. |
| Temperature Dependency | |
| PH Dependency | |
| Pathway | PATHWAY: Glycan metabolism; pectin degradation; 2-dehydro-3-deoxy-D-gluconate from pectin: step 1/5. |
| nucleotide Binding | |
| Features | Active site (2); Binding site (4); Chain (1); Disulfide bond (1); Glycosylation (9); Region (2); Signal peptide (1); Site (1) |
| Keywords | Aspartyl esterase;Cell wall;Cell wall biogenesis/degradation;Disulfide bond;Glycoprotein;Hydrolase;Secreted;Signal |
| Interact With | |
| Induction | |
| Subcellular Location | SUBCELLULAR LOCATION: Secreted, cell wall {ECO:0000305}. |
| Modified Residue | |
| Post Translational Modification | |
| Signal Peptide | SIGNAL 1..30; /evidence=ECO:0000255 |
| Structure 3D | |
| Cross Reference PDB | - |
| Mapped Pubmed ID | - |
| Motif | |
| Gene Encoded By | |
| Mass | 57,397 |
| Kinetics | |
| Metal Binding | |
| Rhea ID | RHEA:22380 |
| Cross Reference Brenda |