SMTL ID : 9qi7.1

Crystal structure of I105R mutant of BlaC from Mycobacterium tuberculosis in complex with avibactam

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.20 Å

Oligo State

monomer

Ligands

1 x NXL: (2S,5R)-1-formyl-5-[(sulfooxy)amino]piperidine-2-carboxamide(Covalent)

NXL.1: 12 residues within 4Å: Chain A: C.40, S.41, K.44, R.74, S.99, E.139, N.143, T.189, K.207, T.208, G.209, T.210 9 PLIP interactions: 9 interactions with chain A Hydrogen bonds: A:S.41, A:S.99, A:S.99, A:E.139, A:N.143, A:R.193, A:T.208, A:T.210 Salt bridges: A:K.207

1 x PEG: DI(HYDROXYETHYL)ETHER(Non-functional Binders)

PEG.2: 3 residues within 4Å: Chain A: A.22, T.23, T.26 No protein-ligand interaction detected (PLIP)

2 x ACT: ACETATE ION(Non-functional Binders)

ACT.3: 4 residues within 4Å: Chain A: P.147, G.148, D.149, T.153 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:G.148, A:D.149 Salt bridges: A:R.15 ACT.4: 6 residues within 4Å: Chain A: L.128, G.129, D.130, A.158, L.161, Q.165 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:D.130, A:L.161 Water bridges: A:T.131

1 x GOL: GLYCEROL(Non-functional Binders)

GOL.5: 6 residues within 4Å: Chain A: E.30, Y.31, R.32, A.33, D.34, E.35 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:A.33, A:D.34, A:E.35

2 x ZN: ZINC ION(Non-covalent)

ZN.6: 1 residues within 4Å: Chain A: H.157 No protein-ligand interaction detected (PLIP) ZN.7: 2 residues within 4Å: Chain A: H.53, S.127 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Radojkovic, M. et al., A glycine at position 105 leads to clavulanic acid and avibactam resistance in class A beta-lactamases. J.Biol.Chem. (2025)

Release Date

2025-06-11

Peptides

Beta-lactamase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Beta-lactamase