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1IYS

Crystal Structure of Class A beta-Lactamase Toho-1

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 Residues10
DetailsBINDING SITE FOR RESIDUE SO4 A 1001
ChainResidue
ASER70
AHOH1142
ASER130
ALYS234
ATHR235
AGLY236
ASER237
AHOH1054
AHOH1057
AHOH1082

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 A 1002
ChainResidue
ALYS197
AGLU273
AARG274
AARG276
AHOH1027
AHOH1066
AHOH1087
AHOH1123
AHOH1188

site_idAC3
Number of Residues10
DetailsBINDING SITE FOR RESIDUE SO4 A 1003
ChainResidue
ALYS82
AARG274
AARG276
AASP277
AHOH1027
AHOH1055
AHOH1064
AHOH1089
AHOH1122
AHOH1161

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A 1004
ChainResidue
AALA52
AARG178
AHOH1050
AHOH1074
AHOH1252
AHOH1272

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 1005
ChainResidue
ALYS197
AGLU269
AGLN270
AHOH1240
AHOH1269

site_idAC6
Number of Residues8
DetailsBINDING SITE FOR RESIDUE SO4 A 1006
ChainResidue
ATRP229
APRO252
AGLU254
AASN255
AHIS256
APHE290
AHOH1276
AHOH1284

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 1007
ChainResidue
ALYS88
AHIS89
AASN92
AHOH1070
AHOH1216

site_idAC8
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 1008
ChainResidue
AILE108
ALYS111
AHIS112
AHOH1088
AHOH1125

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
DetailsACT_SITE: Acyl-ester intermediate
ChainResidueDetails
ASER70

site_idSWS_FT_FI2
Number of Residues1
DetailsBINDING:
ChainResidueDetails
ALYS234

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1btl
ChainResidueDetails
AGLU166
ALYS73
ASER130
ASER70

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PDB entries from 2025-07-02

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