| IED ID | IndEnz0011000493 |
| Enzyme Type ID | glucanase000493 |
| Protein Name |
Xyloglucan endotransglucosylase/hydrolase protein 4 At-XTH4 XTH-4 EC 2.4.1.207 |
| Gene Name | XTH4 EXGT-A1 EXT At2g06850 T9F8.4 |
| 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 | MTVSSSPWALMALFLMVSSTMVMAIPPRKAIDVPFGRNYVPTWAFDHQKQFNGGSELQLILDKYTGTGFQSKGSYLFGHFSMHIKLPAGDTAGVVTAFYLSSTNNEHDEIDFEFLGNRTGQPAILQTNVFTGGKGNREQRIYLWFDPSKAYHTYSILWNMYQIVFFVDNIPIRTFKNAKDLGVRFPFNQPMKLYSSLWNADDWATRGGLEKTNWANAPFVASYKGFHIDGCQASVEAKYCATQGRMWWDQKEFRDLDAEQWRRLKWVRMKWTIYNYCTDRTRFPVMPAECKRDRDA |
| Enzyme Length | 296 |
| Uniprot Accession Number | Q39099 |
| Absorption | |
| Active Site | ACT_SITE 109; /note=Nucleophile; /evidence=ECO:0000255|PROSITE-ProRule:PRU10064; ACT_SITE 113; /note=Proton donor; /evidence=ECO:0000255|PROSITE-ProRule:PRU10064 |
| Activity Regulation | |
| Binding Site | BINDING 113; /note=Xyloglucan; /evidence=ECO:0000250|UniProtKB:Q8GZD5; BINDING 207; /note=Xyloglucan; via carbonyl oxygen; /evidence=ECO:0000250|UniProtKB:Q8GZD5; BINDING 282; /note=Xyloglucan; /evidence=ECO:0000250|UniProtKB:Q8GZD5 |
| Calcium Binding | |
| catalytic Activity | CATALYTIC ACTIVITY: Reaction=Breaks a beta-(1->4) bond in the backbone of a xyloglucan and transfers the xyloglucanyl segment on to O-4 of the non-reducing terminal glucose residue of an acceptor, which can be a xyloglucan or an oligosaccharide of xyloglucan.; EC=2.4.1.207; Evidence={ECO:0000269|PubMed:10406121}; |
| DNA Binding | |
| EC Number | 2.4.1.207 |
| Enzyme Function | FUNCTION: Catalyzes xyloglucan endohydrolysis (XEH) and/or endotransglycosylation (XET). Cleaves and religates xyloglucan polymers, an essential constituent of the primary cell wall, and thereby participates in cell wall construction of growing tissues. |
| Temperature Dependency | |
| PH Dependency | |
| Pathway | |
| nucleotide Binding | |
| Features | Active site (2); Binding site (3); Chain (1); Disulfide bond (2); Domain (1); Frameshift (1); Glycosylation (1); Region (3); Sequence conflict (1); Signal peptide (1); Site (1) |
| Keywords | Apoplast;Cell wall;Cell wall biogenesis/degradation;Disulfide bond;Glycoprotein;Glycosidase;Hydrolase;Reference proteome;Secreted;Signal;Transferase |
| Interact With | |
| Induction | INDUCTION: By auxin and brassinolide. {ECO:0000269|PubMed:11673616, ECO:0000269|PubMed:8696366}. |
| Subcellular Location | SUBCELLULAR LOCATION: Secreted, cell wall {ECO:0000305}. Secreted, extracellular space, apoplast {ECO:0000269|PubMed:15593128}. |
| Modified Residue | |
| Post Translational Modification | PTM: Contains at least one intrachain disulfide bond essential for its enzymatic activity. {ECO:0000250}.; PTM: N-glycosylated; not essential for its enzymatic activity. {ECO:0000269|PubMed:10406121}. |
| Signal Peptide | SIGNAL 1..24; /evidence=ECO:0000255 |
| Structure 3D | |
| Cross Reference PDB | - |
| Mapped Pubmed ID | 1400418; 15028209; 15610358; 16287169; 17432890; 17526915; 18650403; 19269997; 21838868; 23281391; 27379116; 28330559; 32005783; 9375398; |
| Motif | |
| Gene Encoded By | |
| Mass | 34,291 |
| Kinetics | |
| Metal Binding | |
| Rhea ID | |
| Cross Reference Brenda |