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1LG2

CRYSTAL STRUCTURE OF HUMAN CHITOTRIOSIDASE IN COMPLEX WITH ETHYLENE GLYCOL

Functional Information from GO Data
ChainGOidnamespacecontents
A0004553molecular_functionhydrolase activity, hydrolyzing O-glycosyl compounds
A0005975biological_processcarbohydrate metabolic process
A0008061molecular_functionchitin binding
Functional Information from PDB Data
site_idAC1
Number of Residues8
DetailsBINDING SITE FOR RESIDUE EDO A 1001
ChainResidue
ATYR27
AASP138
AGLU140
AMET210
ATYR212
ATRP358
AEDO1002
AEDO1004

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE EDO A 1002
ChainResidue
ATYR267
AARG269
ATRP358
AEDO1001
AEDO1004
AASP213

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE EDO A 1003
ChainResidue
APRO185
AALA186
AGLY187
AMET210
ATYR212

site_idAC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE EDO A 1004
ChainResidue
APHE58
AGLY98
ATRP99
AGLU140
ATRP358
AEDO1001
AEDO1002
AHOH1154

site_idAC5
Number of Residues7
DetailsBINDING SITE FOR RESIDUE EDO A 1005
ChainResidue
AGLU38
AASP364
APHE365
AALA366
AGLY367
APHE368
ASER369

Functional Information from PROSITE/UniProt
site_idPS01095
Number of Residues9
DetailsGH18_1 Glycosyl hydrolases family 18 (GH18) active site signature. FDGLDLDwE
ChainResidueDetails
APHE132-GLU140

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"PROSITE-ProRule","id":"PRU01258","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues9
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU01258","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; in variant S-102","evidences":[{"source":"PubMed","id":"19725875","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ctn
ChainResidueDetails
ATYR212
AASP138
AGLU140

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ctn
ChainResidueDetails
AASP138
AGLU140

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ctn
ChainResidueDetails
AASP136
AGLU140

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PDB entries from 2025-08-27

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