CATH Classification

Domain Context

CATH Clusters

Superfamily DD-peptidase/beta-lactamase superfamily
Functional Family D-alanyl-D-alanine serine-type carboxypeptidase

Enzyme Information

3.4.16.4
Serine-type D-Ala-D-Ala carboxypeptidase.
based on mapping to UniProt P0AEB2
Preferential cleavage: (Ac)(2)-L-Lys-D-Ala-|-D-Ala. Also transpeptidation of peptidyl-alanyl moieties that are N-acyl substituents of D-alanine.
-!- A group of bacterial enzymes, membrane-bound. -!- Inhibited by beta-lactam antibiotics, which acylate the active site serine in the enzyme. -!- Distinct from EC 3.4.17.14. -!- Belongs to peptidase families S11, S12 and S13.
3.5.2.6
Beta-lactamase.
based on mapping to UniProt P0AEB2
A beta-lactam + H(2)O = a substituted beta-amino acid.
-!- Zinc is only requires in class-B enzymes. -!- A group of enzymes of varying specificity hydrolyzing beta-lactams; some act more rapidly on penicillins, some more rapidly on cephalosporins. -!- Formerly EC 3.5.2.8.

UniProtKB Entries (1)

P0AEB2
DACA_ECOLI
Escherichia coli K-12
D-alanyl-D-alanine carboxypeptidase DacA

PDB Structure

PDB 5J8X
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural basis of metallo-beta-lactamase, serine-beta-lactamase and penicillin-binding protein inhibition by cyclic boronates.
Brem, J., Cain, R., Cahill, S., McDonough, M.A., Clifton, I.J., Jimenez-Castellanos, J.C., Avison, M.B., Spencer, J., Fishwick, C.W., Schofield, C.J.
Nat Commun
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