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2ZQA

Cefotaxime acyl-intermediate structure of class a beta-lacta Toho-1 E166A/R274N/R276N triple mutant

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 Residues21
DetailsBINDING SITE FOR RESIDUE PCZ A 301
ChainResidue
ACYS69
ATHR235
AGLY236
ASER237
AGLY238
AASP240
AASN274
AHOH332
AHOH382
AHOH524
AHOH609
ASER70
AHOH611
AHOH628
AASN104
ATYR105
ASER130
AASN132
APRO167
AASN170
ALYS234

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 A 1
ChainResidue
ATRP229
APRO252
AGLU254
AASN255
AHIS256
APHE290
AHOH590
AHOH606
AHOH608

site_idAC3
Number of Residues12
DetailsBINDING SITE FOR RESIDUE SO4 A 2
ChainResidue
ALYS82
AALA198
AARG275
AASN276
AASP277
AHOH378
AHOH396
AHOH428
AHOH440
AHOH449
AHOH452
AHOH531

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A 3
ChainResidue
AALA52
AARG178
AHOH340
AHOH365
AHOH430
AHOH638

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 5
ChainResidue
ALYS88
AHIS89
AASN92
AHOH339
AHOH398

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
AALA166
ALYS73
ASER130
ASER70

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PDB entries from 2025-07-02

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