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2QLY

Crystral Structure of the N-terminal Subunit of Human Maltase-Glucoamylase

Functional Information from GO Data
ChainGOidnamespacecontents
A0003824molecular_functioncatalytic activity
A0004553molecular_functionhydrolase activity, hydrolyzing O-glycosyl compounds
A0005975biological_processcarbohydrate metabolic process
A0030246molecular_functioncarbohydrate binding
Functional Information from PROSITE/UniProt
site_idPS00025
Number of Residues22
DetailsP_TREFOIL_1 P-type 'Trefoil' domain signature. RinCiPdqppTkatCdqrgCCW
ChainResidueDetails
AARG12-TRP33

site_idPS00129
Number of Residues8
DetailsGLYCOSYL_HYDROL_F31_1 Glycosyl hydrolases family 31 active site. GIWiDMNE
ChainResidueDetails
AGLY439-GLU446

site_idPS00707
Number of Residues31
DetailsGLYCOSYL_HYDROL_F31_2 Glycosyl hydrolases family 31 signature 2. GPDICGFaldTpeeLCrRWmqLGAFyPFsRN
ChainResidueDetails
AGLY569-ASN599

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues381
DetailsRegion: {"description":"Maltase","evidences":[{"source":"PubMed","id":"18036614","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Nucleophile","evidences":[{"source":"PROSITE-ProRule","id":"PRU10066","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsActive site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues5
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"18036614","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Sulfotyrosine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues7
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues3
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"18036614","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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