Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1btla_ Multi-domain proteins (alpha and beta) beta-lactamase/transpeptidase-like beta-lactamase/transpeptidase-like beta-Lactamase/D-ala carboxypeptidase beta-Lactamase, class A (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B Superfamilybeta-lactamase/transpeptidase-like 8041576 3001604 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APeptidase_S11_1st_1e1btlA3 A: alpha complex topologyX: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)H: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)T: alpha-helical domain in beta-lactamase/transpeptidase-like proteinsF: Peptidase_S11_1st_1ECOD (1.6)
ABeta-lactamase2e1btlA4 A: a+b three layersX: Profilin-likeH: a+b domain in beta-lactamase/transpeptidase-like proteins (From Topology)T: a+b domain in beta-lactamase/transpeptidase-like proteinsF: Beta-lactamase2ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.710.10 Alpha Beta 3-Layer(aba) Sandwich Beta-lactamase DD-peptidase/beta-lactamase superfamilyCATH (4.3.0)

AMR Gene: CARD Annotation CARD Database Homepage

ChainsAccessionShort NameDescriptionProvenance Source (Version)
ARO:3000979TEM-116TEM-116 is a broad-spectrum beta-lactamase found in many species of bacteria.CARD (3.3.0)

AMR Gene Family: CARD Annotation CARD Database Homepage

ChainsAccessionGene FamilyDrug Class Resistance MachanismProvenance Source (Version)
ARO:3000014TEM beta-lactamasemonobactam, cephalosporin, penam, penemantibiotic inactivationCARD (3.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF13354Beta-lactamase enzyme family (Beta-lactamase2)Beta-lactamase enzyme familyThis is the catalytic domain of class A beta-lactamases [1]. It is closely related to Beta-lactamase, Pfam:PF00144, the serine beta-lactamase-like superfamily, which contains the distantly related Pfam:PF00905 and PF00768 D-alanyl-D-alanine carboxype ...This is the catalytic domain of class A beta-lactamases [1]. It is closely related to Beta-lactamase, Pfam:PF00144, the serine beta-lactamase-like superfamily, which contains the distantly related Pfam:PF00905 and PF00768 D-alanyl-D-alanine carboxypeptidase.
Domain
PF00144Beta-lactamase (Beta-lactamase)Beta-lactamaseThis family appears to be distantly related to Pfam:PF00905 and PF00768 D-alanyl-D-alanine carboxypeptidase.Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
beta-lactamase (Class A)  M-CSA #2

The Class A Beta lactamase acts to hydrolyse the endocyclic amide bond of beta-lactam substrates in a two step mechanism: acylation (covalent attachment of the beta-lactam to an active site serine, Ser70), followed by deacylation. The TEM-type are the most prevalent beta-lactamases in enterobacteria and confer resistance to penicillins and cephalosporins in these species.

TEM-3 and TEM-4 are capable of hydrolyzing cefotaxime and ceftazidime. TEM-5 is capable of hydrolysing ceftazidime. TEM-6 is capable of hydrolysing ceftazidime and aztreonam. TEM-8/CAZ-2, TEM-16/CAZ-7 and TEM-24/CAZ-6 are markedly active against ceftazidime. IRT-4 shows resistance to beta-lactamase inhibitors.

Defined by 6 residues: SER:A-45 [auth A-70]LYS:A-48 [auth A-73]SER:A-105 [auth A-130]GLU:A-141 [auth A-166]LYS:A-209 [auth A-234]ALA:A-212 [auth A-237]
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