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4BLM

BETA-LACTAMASE OF BACILLUS LICHENIFORMIS 749(SLASH)C. REFINEMENT AT 2 ANGSTROMS RESOLUTION AND ANALYSIS OF HYDRATION

Functional Information from GO Data
ChainGOidnamespacecontents
A0005886cellular_componentplasma membrane
A0008800molecular_functionbeta-lactamase activity
A0016787molecular_functionhydrolase activity
A0017001biological_processantibiotic catabolic process
A0030655biological_processbeta-lactam antibiotic catabolic process
A0046677biological_processresponse to antibiotic
B0005886cellular_componentplasma membrane
B0008800molecular_functionbeta-lactamase activity
B0016787molecular_functionhydrolase activity
B0017001biological_processantibiotic catabolic process
B0030655biological_processbeta-lactam antibiotic catabolic process
B0046677biological_processresponse to antibiotic
Functional Information from PDB Data
site_idAC1
Number of Residues8
DetailsBINDING SITE FOR RESIDUE SO4 A 1
ChainResidue
ASER70
ATYR105
ASER130
AHOH672
AHOH692
AHOH749
AHOH910
AHOH931

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 B 1
ChainResidue
BSER70
BSER130
BASN132
BHOH698
BHOH711
BHOH960

site_idCTA
Number of Residues6
DetailsTHE CATALYTIC SITE IS CENTERED AROUND SER 70 AT THE N-TERMINUS OF HELIX A2 AND IS PRESENTED HERE. STRAND 5 OF SHEET *S1* CONTAINS IMPORTANT RESIDUES LYS 234 AND THR 235. INVARIANT GLUTAMIC ACID 166 IS INVOLVED IN DEACYLATION (SEE ALSO THE E166A MUTANT STRUCTURE PRESENTED IN PROTEIN DATA BANK ENTRY 1MBL)
ChainResidue
ASER70
ALYS73
ASER130
AGLU166
ALYS234
ATHR235

site_idCTB
Number of Residues6
DetailsTHE CATALYTIC SITE IS CENTERED AROUND SER 70 AT THE N-TERMINUS OF HELIX A2 AND IS PRESENTED HERE. STRAND 5 OF SHEET *S1* CONTAINS IMPORTANT RESIDUES LYS 234 AND THR 235. INVARIANT GLUTAMIC ACID 166 IS INVOLVED IN DEACYLATION (SEE ALSO THE E166A MUTANT STRUCTURE PRESENTED IN PROTEIN DATA BANK ENTRY 1MBL)
ChainResidue
BGLU166
BLYS234
BTHR235
BSER70
BLYS73
BSER130

Functional Information from PROSITE/UniProt
site_idPS00141
Number of Residues12
DetailsASP_PROTEASE Eukaryotic and viral aspartyl proteases active site. FALDTGTNRTVA
ChainResidueDetails
APHE47-ALA59

site_idPS00146
Number of Residues16
DetailsBETA_LACTAMASE_A Beta-lactamase class-A active site. FaFASTiKaltVGVLL
ChainResidueDetails
APHE66-LEU81

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Acyl-ester intermediate"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsBinding site: {}
ChainResidueDetails

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

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1btl
ChainResidueDetails
BGLU166
BLYS73
BSER130
BSER70

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PDB entries from 2025-12-10

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