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1IYO

Toho-1 beta-Lactamase In Complex With Cefotaxime

Functional Information from GO Data
ChainGOidnamespacecontents
A0008800molecular_functionbeta-lactamase activity
A0016787molecular_functionhydrolase activity
A0017001biological_processantibiotic catabolic process
A0030655biological_processbeta-lactam antibiotic catabolic process
A0046677biological_processresponse to antibiotic
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 A 401
ChainResidue
ALYS197
AGLU273
AARG274
AARG276
AHOH575
AHOH636
AHOH709

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 A 402
ChainResidue
AARG276
AASP277
AHOH575
AHOH599
AHOH607
AHOH642
AHOH677
ALYS82
AARG274

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A 403
ChainResidue
ATRP229
APRO252
AGLU254
AASN255
AHIS256
APHE290

site_idAC4
Number of Residues16
DetailsBINDING SITE FOR RESIDUE CEF A 301
ChainResidue
ACYS69
ASER70
AASN104
ATYR105
ASER130
AASN132
APRO167
AASN170
ALYS234
ATHR235
AGLY236
ASER237
AASP240
AARG274
AHOH647
AHOH662

Functional Information from PROSITE/UniProt
site_idPS00146
Number of Residues16
DetailsBETA_LACTAMASE_A Beta-lactamase class-A active site. FaMCSTsKvmaAAAVL
ChainResidueDetails
APHE66-LEU81

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Acyl-ester intermediate"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsBinding site: {}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1btl
ChainResidueDetails
AALA166
ALYS73
ASER130
ASER70

246704

PDB entries from 2025-12-24

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