9UEH | pdb_00009ueh

Serine Beta-Lactamase OXA-48 in Complex with MBL/SBL Inhibitor FB1-10

PDB DOI: https://doi.org/10.2210/pdb9UEH/pdb

Classification: HYDROLASE
Organism(s): Klebsiella pneumoniae
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-04-08 Released: 2026-07-15
Deposition Author(s): Li, G.-B., Wei, S.-Q.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.76 Å
R-Value Free:
0.238 (Depositor), 0.243 (DCC)
R-Value Work:
0.197 (Depositor), 0.204 (DCC)
R-Value Observed:
0.198 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.0 of the entry. See complete history.

Literature

Serine Beta-Lactamase OXA-48 in Complex with dual MBL/SBL Inhibitor FB1-10

Li, G.-B., Wei, S.-Q.

To be published.

Macromolecule Content

Total Structure Weight: 113.92 kDa
Atom Count: 8,602
Modeled Residue Count: 964
Deposited Residue Count: 968
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-lactamase OXA-48	A, B, C, D	242	Klebsiella pneumoniae	Mutation(s): 0 Gene Names: OXA-48, bla OXA-48, bla_4, blaOXA-48, KPE71T_00045, SAMEA3727706_05517 EC: 3.5.2.6
UniProt
Find proteins for Q6XEC0 (Klebsiella pneumoniae) Explore Q6XEC0 Go to UniProtKB: Q6XEC0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q6XEC0
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1EO1 (Subject of Investigation/LOI) Query on A1EO1 Download:Ideal Coordinates CCD File SDF format, chain F [auth B] SDF format, chain H [auth C] SDF format, chain J [auth D] SDF format, chain E [auth A] MOL2 format, chain F [auth B] MOL2 format, chain H [auth C] MOL2 format, chain J [auth D] MOL2 format, chain E [auth A] mmCIF format, chain F [auth B] mmCIF format, chain H [auth C] mmCIF format, chain J [auth D] mmCIF format, chain E [auth A]	E [auth A], F [auth B], H [auth C], J [auth D]	7-[3-(2-fluoranylethylamino)cyclobutyl]oxy-2-oxidanyl-3,4-dihydro-1,2-benzoxaborinine-8-carboxylic acid C₁₅ H₁₉ B F N O₅ DPQNZUBOUZEKIO-XYPYZODXSA-N		Interactions Focus chain E [auth A] Focus chain F [auth B] Focus chain H [auth C] Focus chain J [auth D] Interactions & Density Focus chain E [auth A] Focus chain F [auth B] Focus chain H [auth C] Focus chain J [auth D]
GOL Query on GOL Download:Ideal Coordinates CCD File SDF format, chain I [auth C] MOL2 format, chain I [auth C] mmCIF format, chain I [auth C]	I [auth C]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain I [auth C] Interactions & Density Focus chain I [auth C]
1BO Query on 1BO Download:Ideal Coordinates CCD File SDF format, chain K [auth D] SDF format, chain G [auth B] MOL2 format, chain K [auth D] MOL2 format, chain G [auth B] mmCIF format, chain K [auth D] mmCIF format, chain G [auth B]	G [auth B], K [auth D]	1-BUTANOL C₄ H₁₀ O LRHPLDYGYMQRHN-UHFFFAOYSA-N		Interactions Focus chain G [auth B] Focus chain K [auth D] Interactions & Density Focus chain G [auth B] Focus chain K [auth D]