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4MBK

Crystal structure of K234R inhibitor-resistant variant of SHV beta-lactamase in complex with SA2-13

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 Residues12
DetailsBINDING SITE FOR RESIDUE MA4 A 301
ChainResidue
AARG93
AGLU288
AHOH410
AHOH463
AILE95
AHIS96
AVAL224
APRO226
AALA248
AILE263
AALA280
AALA284

site_idAC2
Number of Residues2
DetailsBINDING SITE FOR RESIDUE MA4 A 302
ChainResidue
AARG244
AILE279

site_idAC3
Number of Residues12
DetailsBINDING SITE FOR RESIDUE SA2 A 303
ChainResidue
AMET69
ASER70
AASP104
ASER130
AASN132
ATHR167
AASN170
AARG234
ATHR235
AGLY236
AALA237
AARG244

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

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Nucleophile; acyl-ester intermediate","evidences":[{"source":"UniProtKB","id":"A0A5R8T042","evidenceCode":"ECO:0000250"},{"source":"PROSITE-ProRule","id":"PRU10101","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"A0A5R8T042","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

243911

PDB entries from 2025-10-29

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