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2V20

Structure of a TEM-1 beta-lactamase insertant allosterically regulated by kanamycin and anions. Complex with sulfate.

Functional Information from GO Data
ChainGOidnamespacecontents
A0005515molecular_functionprotein binding
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 Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 1270
ChainResidue
AGLU90
AHIS133
AHIS138
AHOH2273

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 A 1271
ChainResidue
AARG219
AARG220
AHOH2237
AHOH2274

site_idAC3
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 A 1272
ChainResidue
ASER110
AVAL196
ALYS214
ASER215
AGLY216
AALA217
AARG223
AHOH2078
ASER50

Functional Information from PROSITE/UniProt
site_idPS00146
Number of Residues16
DetailsBETA_LACTAMASE_A Beta-lactamase class-A active site. FpMMSTfKvllCGAVL
ChainResidueDetails
APHE46-LEU61

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 Residues1
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsBinding site: {}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1btl
ChainResidueDetails
ALYS53
ASER110
ASER50
AGLU146

site_idMCSA1
Number of Residues6
DetailsM-CSA 2
ChainResidueDetails
ASER50electrostatic stabiliser
ALYS53hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
ASER110activator, electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
AGLU146activator, electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
ALYS214electrostatic stabiliser
AALA217electrostatic stabiliser, hydrogen bond donor

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PDB entries from 2026-01-14

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