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4FOQ

Crystal structure of the NanB sialidase from streptococcus pneumoniae in complex with 2-aminoethanesulfonic acid

Functional Information from GO Data
ChainGOidnamespacecontents
A0004308molecular_functionexo-alpha-sialidase activity
A0005975biological_processcarbohydrate metabolic process
Functional Information from PDB Data
site_idAC1
Number of Residues11
DetailsBINDING SITE FOR RESIDUE TAU A 701
ChainResidue
AARG245
AHOH1218
AHOH1296
AASP270
AARG557
AARG619
ATYR653
ATRP674
AHOH1003
AHOH1064
AHOH1151

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE DMS A 702
ChainResidue
ATYR250
ATHR251
AGLN494
ATHR657

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE DMS A 703
ChainResidue
AARG129
AVAL166
ALEU681
ASER682

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE DMS A 704
ChainResidue
APHE105
AARG107
AGLU115
ALEU126
ALYS335

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

site_idSWS_FT_FI6
Number of Residues1
DetailsActive site: {"evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsActive site: {"description":"Nucleophile","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues3
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

246704

PDB entries from 2025-12-24

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