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1KWK

Crystal structure of Thermus thermophilus A4 beta-galactosidase in complex with galactose

Functional Information from GO Data
ChainGOidnamespacecontents
A0004565molecular_functionbeta-galactosidase activity
A0005975biological_processcarbohydrate metabolic process
A0006012biological_processgalactose metabolic process
A0009341cellular_componentbeta-galactosidase complex
A0016787molecular_functionhydrolase activity
A0016798molecular_functionhydrolase activity, acting on glycosyl bonds
A0046872molecular_functionmetal ion binding
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton donor"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Nucleophile"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"12215416","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues7
DetailsBinding site: {}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1cz1
ChainResidueDetails
AGLU141
AASN241

249697

PDB entries from 2026-02-25

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