Detail Information for IndEnz0010000175
IED ID IndEnz0010000175
Enzyme Type ID esterase000175
Protein Name Multidomain esterase
Includes: Acetylxylan esterase
EC 3.1.1.72
; 4-O-methyl-glucuronoyl methylesterase
EC 3.1.1.117
Glucuronoyl esterase
GE
Gene Name cesA
Organism Ruminococcus flavefaciens
Taxonomic Lineage cellular organisms Bacteria Terrabacteria group Firmicutes Clostridia Eubacteriales Oscillospiraceae Ruminococcus Ruminococcus flavefaciens
Enzyme Sequence MKKHFVVGETIKRFLRIGTSLALSISTLSLLPSAPRLSSAAGTIKIMPLGDSITYGMADEGGYRKYLSYFLQQKGYTNVDLVGPEGKDSASFNYNGQSVKYDDNHAGYSGYTITNLPGGWFGQLNGILETMQGGDYIKKYSPDIILLQIGTNDVSNGHLDGSEERLHKLLDYLRENMPSNGKVFLTTIPDLGNSGWGGNSNGDIAKYNELIKKVANDYSSKNVIYADIHSVIDASKDLADGVHPNAGGYEKMGKYWLEQIEGYLKASDGPQQTQPTQPSQGDSGPELIYGDLDGDKTITSFDAVIMRKGLINDFKDNNVKKAADIDQNGKAEVADLVQLQSFIIGKIKEFTVAEKTVTEKPVFEKSYNFPAVNQLKSSKDIPDPFIFMDGSKVESTDDWWKRQSEISCMYEYYMYGKWIDGSDDETTYSISGNSMTINVKRKSTGKTASFKAVINLPKNVRHEGGAPVILGMHKGISESTATSNGYAVITYDSDGMFSAPGTAQDNNQHKGAFYDLYPYGRNWDEQTGDLMAWSWGISRILDALYNGAAKELNINPDSSIVTGVSRYGKAASVCGAFDTRIKMCAPSCSGAGGLALYRYSSVGKTYDFSSKGGSSSYTYKENEPLGSLQASGEQGWFNGRFMEFRNAEQFPMDQHMLGALCCDPDRYLFIIGSCESEDWVNAPSVWMAYLGMKHVWDYVGISDHLAINIHKSGHAVIAEDIEKMVQYFDYHVYGIQPKMNLEELQTSVFALPKNKDSFADTFASKWLY
Enzyme Length 768
Uniprot Accession Number Q9RLB8
Absorption
Active Site ACT_SITE 68; /note=Nucleophile; for acetylxylan esterase activity; /evidence=ECO:0000250|UniProtKB:Q00017; ACT_SITE 240; /note=For acetylxylan esterase activity; /evidence=ECO:0000250|UniProtKB:Q00017; ACT_SITE 243; /note=For acetylxylan esterase activity; /evidence=ECO:0000250|UniProtKB:Q00017; ACT_SITE 565; /note=Nucleophile; for glucuronoyl esterase activity; /evidence=ECO:0000250|UniProtKB:G2QJR6
Activity Regulation
Binding Site BINDING 569; /note=Substrate; /evidence=ECO:0000250|UniProtKB:G2QJR6; BINDING 633; /note=Substrate; /evidence=ECO:0000250|UniProtKB:G2QJR6; BINDING 679; /note=Substrate; /evidence=ECO:0000250|UniProtKB:G2QJR6
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=Deacetylation of xylans and xylo-oligosaccharides.; EC=3.1.1.72; Evidence={ECO:0000269|PubMed:10846217}; CATALYTIC ACTIVITY: Reaction=a 4-O-methyl-alpha-D-glucuronosyl ester derivative + H2O = 4-O-methyl-alpha-D-glucuronate derivative + an alcohol + H(+); Xref=Rhea:RHEA:67452, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30879, ChEBI:CHEBI:171667, ChEBI:CHEBI:171668; EC=3.1.1.117; Evidence={ECO:0000269|PubMed:26216754};PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:67453; Evidence={ECO:0000305|PubMed:26216754};
DNA Binding
EC Number 3.1.1.72; 3.1.1.117
Enzyme Function FUNCTION: Esterase involved in the degradation of plant cell wall polysaccharides. Catalyzes the deacetylation of chemically acetylated xylan and native, steam-extracted xylan (PubMed:10846217). Seems to act in synergy with the xylanase XynD which produces xylo-oligosaccharides (PubMed:10846217). Also catalyzes the deesterification of methyl esters of 4-O-methyl-D-glucuronic acid (MeGlcA) side residues in synthetic glucuronoxylan methyl ester, suggesting that it may be able to cleave ester linkages between MeGlcA carboxyl and more complex alcohols, including linkages between hemicellulose and lignin alcohols in plant cell walls (PubMed:26216754). {ECO:0000269|PubMed:10846217, ECO:0000269|PubMed:26216754}.
Temperature Dependency
PH Dependency
Pathway PATHWAY: Glycan degradation; xylan degradation. {ECO:0000305|PubMed:10846217}.
nucleotide Binding
Features Active site (4); Binding site (3); Chain (1); Compositional bias (1); Domain (1); Motif (1); Region (3); Signal peptide (1)
Keywords Carbohydrate metabolism;Hydrolase;Multifunctional enzyme;Polysaccharide degradation;Secreted;Serine esterase;Signal;Xylan degradation
Interact With
Induction
Subcellular Location SUBCELLULAR LOCATION: Secreted {ECO:0000305}.
Modified Residue
Post Translational Modification
Signal Peptide SIGNAL 1..40; /evidence=ECO:0000255
Structure 3D
Cross Reference PDB -
Mapped Pubmed ID -
Motif MOTIF 563..568; /note=GXSYXG catalytic site motif; /evidence=ECO:0000250|UniProtKB:G2QJR6
Gene Encoded By
Mass 84,835
Kinetics
Metal Binding
Rhea ID RHEA:67452; RHEA:67453
Cross Reference Brenda 3.1.1.B11;