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1EUS

SIALIDASE COMPLEXED WITH 2-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID

Functional Information from GO Data
ChainGOidnamespacecontents
A0004308molecular_functionexo-alpha-sialidase activity
Functional Information from PDB Data
site_idACT
Number of Residues6
DetailsACTIVE SITE. SITE COMPRISES BOTH THE SIX RESIDUES INDICATED IN THE 'SITE' RECORDS AND THE CORRESPONDING RESIDUES OF AN SYMMETRY-RELATED UNIT.
ChainResidue
AGLN224
AGLY245
AALA250
AGLY292
AASN311
APHE318

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues11
DetailsRepeat: {"description":"BNR 1"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues11
DetailsRepeat: {"description":"BNR 2"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues11
DetailsRepeat: {"description":"BNR 3"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues11
DetailsRepeat: {"description":"BNR 4"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues11
DetailsRepeat: {"description":"BNR 5"}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsActive site: {"description":"Nucleophile","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues1
DetailsActive site: {"description":"Nucleophile"}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues2
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1euu
ChainResidueDetails
AASP92
ATYR370
AGLU260

site_idMCSA1
Number of Residues3
DetailsM-CSA 835
ChainResidueDetails
AASP92activator, increase nucleophilicity, promote heterolysis, proton acceptor, proton donor
AGLU260activator, increase nucleophilicity, promote heterolysis, proton acceptor, proton donor
ATYR370covalently attached, nucleofuge, nucleophile, proton acceptor, proton donor

246031

PDB entries from 2025-12-10

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