SMTL ID : 6q9n.1 (1 other biounit)

Crystal structure of PBP2a from MRSA in complex with piperacillin and quinazolinone

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

monomer

Ligands

1 x QLN: 3-[2-[(~{E})-2-(4-ethynylphenyl)ethenyl]-4-oxidanylidene-quinazolin-3-yl]benzoic acid(Non-covalent)

QLN.1: 5 residues within 4Å: Chain A: N.78, Y.79, I.118, N.120, Y.271 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:N.120, A:Y.271 Hydrogen bonds: A:I.118 pi-Cation interactions: A:K.247, A:K.247

1 x JPP: Piperacillin (Open Form)(Covalent)

JPP.2: 15 residues within 4Å: Chain A: G.376, S.377, K.380, Y.420, S.435, S.436, N.438, Q.495, S.572, G.573, T.574, A.575, E.576, Q.587, A.616 13 PLIP interactions: 13 interactions with chain A Hydrophobic interactions: A:Y.420, A:Y.420, A:T.574 Hydrogen bonds: A:S.377, A:S.436, A:N.438, A:Q.495, A:S.572, A:T.574, A:T.574, A:T.574, A:E.576 Salt bridges: A:K.571

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 6 residues within 4Å: Chain A: G.109, Q.111, Q.114, A.284, H.285 Ligands: CD.5 Ligand excluded by PLIP CL.4: 3 residues within 4Å: Chain A: E.119, T.274 Ligands: CD.6 Ligand excluded by PLIP

2 x CD: CADMIUM ION(Non-covalent)

CD.5: 3 residues within 4Å: Chain A: G.109, H.285 Ligands: CL.3 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:G.109, A:H.285 CD.6: 3 residues within 4Å: Chain A: H.117, E.119 Ligands: CL.4 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:H.117, A:E.119

1 x MUR: beta-muramic acid(Non-covalent)

MUR.7: 10 residues within 4Å: Chain A: K.122, E.124, R.125, T.139, E.213, S.214, R.215, V.230, V.251, H.267 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:S.123, A:R.125, A:E.213, A:R.215 Salt bridges: A:K.122, A:H.267, A:H.267

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Janardhanan, J. et al., The Quinazolinone Allosteric Inhibitor of PBP 2a Synergizes with Piperacillin and Tazobactam against Methicillin-Resistant Staphylococcus aureus. Antimicrob.Agents Chemother. (2019)

Release Date

2019-11-27

Peptides

Penicillin binding protein 2 prime: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Penicillin binding protein 2 prime

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