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4FPC

Crystal structure of the NanB sialidase from streptococcus pneumoniae in complex with 2-[(4-Chlorobenzyl)ammonio]ethanesulfonate

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 MFY A 701
ChainResidue
AARG245
ATRP674
AHOH1032
AASP270
AILE326
AASP327
AMET346
AASN352
AARG557
AARG619
ATYR653

site_idAC2
Number of Residues7
DetailsBINDING SITE FOR RESIDUE GOL A 702
ChainResidue
ATYR250
ATHR251
AGLN494
AILE596
ATHR657
AHOH891
AHOH1024

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

239803

PDB entries from 2025-08-06

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