| IED ID | IndEnz0010000436 |
| Enzyme Type ID | esterase000436 |
| Protein Name |
Pectinesterase PPME1 AtPPME1 PE PPME1 EC 3.1.1.11 Pectin methylesterase 9 AtPME9 Pectin methylesterase PPME1 Protein POLLEN SPECIFIC PME 1 |
| Gene Name | PPME1 ARATH9 At1g69940 T17F3.3 |
| Organism | Arabidopsis thaliana (Mouse-ear cress) |
| Taxonomic Lineage | cellular organisms Eukaryota Viridiplantae Streptophyta Streptophytina Embryophyta Tracheophyta Euphyllophyta Spermatophyta Magnoliopsida Mesangiospermae eudicotyledons Gunneridae Pentapetalae rosids malvids Brassicales Brassicaceae Camelineae Arabidopsis Arabidopsis thaliana (Mouse-ear cress) |
| Enzyme Sequence | MGYTNVSILLGLLMVFVTPMVFADDVTPIPEGKPQVAQWFNANVGPLAQRKGLDPALVAAEAAPRIINVNPKGGEFKTLTDAIKSVPAGNTKRVIIKMAPGEYKEKVTIDRNKPFITLMGQPNAMPVITYDGTAAKYGTVDSASLIILSDYFMAVNIVVKNTAPAPDGKTKGAQALSMRISGNFAAFYNCKFYGFQDTICDDTGNHFFKDCYVEGTFDFIFGSGTSMYLGTQLHVVGDGIRVIAAHAGKSAEEKSGYSFVHCKVTGTGGGIYLGRAWMSHPKVVYAYTEMTSVVNPTGWQENKTPAHDKTVFYGEYKCSGPGSHKAKRVPFTQDIDDKEANRFLSLGYIQGSKWLLPPPAL |
| Enzyme Length | 361 |
| Uniprot Accession Number | Q84WM7 |
| Absorption | |
| Active Site | ACT_SITE 197; /note=Proton donor; /evidence=ECO:0000250; ACT_SITE 218; /note=Nucleophile; /evidence=ECO:0000250 |
| Activity Regulation | |
| Binding Site | BINDING 174; /note=Substrate; /evidence=ECO:0000250; BINDING 275; /note=Substrate; /evidence=ECO:0000250; BINDING 277; /note=Substrate; /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; Evidence={ECO:0000305|PubMed:16564517};PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:22381; Evidence={ECO:0000305|PubMed:16564517}; |
| DNA Binding | |
| EC Number | 3.1.1.11 |
| Enzyme Function | FUNCTION: Acts in the modification of cell walls via demethylesterification of cell wall pectin. Involved in the pollen tube growth and determination of pollen tube morphology. {ECO:0000269|PubMed:16564517}. |
| 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 (3); Chain (1); Erroneous gene model prediction (1); Signal peptide (1); Site (1) |
| Keywords | Aspartyl esterase;Cell wall;Cell wall biogenesis/degradation;Endoplasmic reticulum;Golgi apparatus;Hydrolase;Reference proteome;Secreted;Signal |
| Interact With | |
| Induction | |
| Subcellular Location | SUBCELLULAR LOCATION: Endoplasmic reticulum. Golgi apparatus. Secreted, cell wall. |
| Modified Residue | |
| Post Translational Modification | |
| Signal Peptide | SIGNAL 1..23; /evidence=ECO:0000255 |
| Structure 3D | |
| Cross Reference PDB | - |
| Mapped Pubmed ID | 16242667; 18502975; 20032078; 24367018; |
| Motif | |
| Gene Encoded By | |
| Mass | 39,142 |
| Kinetics | |
| Metal Binding | |
| Rhea ID | RHEA:22380; RHEA:22381 |
| Cross Reference Brenda | 3.1.1.11; |