8B7L | pdb_00008b7l

X-ray structure of Auranofin-horse spleen ferritin

PDB DOI: https://doi.org/10.2210/pdb8B7L/pdb

Classification: TRANSPORT PROTEIN
Organism(s): Equus caballus
Mutation(s): No

Deposited: 2022-09-30 Released: 2022-12-28
Deposition Author(s): Ferraro, G., Merlino, A.
Funding Organization(s): Not funded

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.24 Å
R-Value Free:
0.180 (Depositor), 0.191 (DCC)
R-Value Work:
0.158 (Depositor), 0.167 (DCC)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.1 of the entry. See complete history.

Literature

Evaluation of Auranofin Loading within Ferritin Nanocages.

Lucignano, R., Pratesi, A., Imbimbo, P., Monti, D.M., Picone, D., Messori, L., Ferraro, G., Merlino, A.

(2022) Int J Mol Sci 23

PubMed: 36430642 Search on PubMed Search on PubMed Central
DOI: https://doi.org/10.3390/ijms232214162
Primary Citation Related Structures:
8B7L, 8B7O

PubMed Abstract:
Auranofin (AF), a gold(I) compound that is currently used for the treatment of rheumatoid arthritis and is in clinical trials for its promising anticancer activity, was encapsulated within the human H-chain and the horse spleen ferritin nanocages using the alkaline disassembly/reassembly protocol. The aim of the work was to highlight possible differences in their drug loading capacity and efficacy. The drug-loaded ferritins were characterized via UV-vis absorption spectroscopy and inductively coupled plasma-atomic emission spectroscopy to assess AF encapsulation and to define the exact amount of gold atoms trapped in the Ft cavity. The crystal structures allowed us to define the nature of AF interaction with both ferritins and to identify the gold binding sites. Moreover, the biological characterization let us to obtain preliminary information on the cytotoxic effect of AF when bound to the human H-chain.

Organizational Affiliation

Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy.

Macromolecule Content

Total Structure Weight: 21.28 kDa
Atom Count: 1,964
Modeled Residue Count: 172
Deposited Residue Count: 174
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ferritin light chain	A [auth AAA]	174	Equus caballus	Mutation(s): 0
UniProt
Find proteins for P02791 (Equus caballus) Explore P02791 Go to UniProtKB: P02791
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P02791
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
AU (Subject of Investigation/LOI) Query on AU Download:Ideal Coordinates CCD File SDF format, chain D [auth AAA] MOL2 format, chain D [auth AAA] mmCIF format, chain D [auth AAA]	D [auth AAA]	GOLD ION Au ZBKIUFWVEIBQRT-UHFFFAOYSA-N		Interactions Focus chain D [auth AAA] Interactions & Density Focus chain D [auth AAA]
CD Query on CD Download:Ideal Coordinates CCD File SDF format, chain B [auth AAA] SDF format, chain L [auth AAA] SDF format, chain K [auth AAA] SDF format, chain J [auth AAA] SDF format, chain I [auth AAA] SDF format, chain H [auth AAA] SDF format, chain G [auth AAA] SDF format, chain F [auth AAA] SDF format, chain E [auth AAA] MOL2 format, chain B [auth AAA] MOL2 format, chain L [auth AAA] MOL2 format, chain K [auth AAA] MOL2 format, chain J [auth AAA] MOL2 format, chain I [auth AAA] MOL2 format, chain H [auth AAA] MOL2 format, chain G [auth AAA] MOL2 format, chain F [auth AAA] MOL2 format, chain E [auth AAA] mmCIF format, chain B [auth AAA] mmCIF format, chain L [auth AAA] mmCIF format, chain K [auth AAA] mmCIF format, chain J [auth AAA] mmCIF format, chain I [auth AAA] mmCIF format, chain H [auth AAA] mmCIF format, chain G [auth AAA] mmCIF format, chain F [auth AAA] mmCIF format, chain E [auth AAA]	B [auth AAA] E [auth AAA] F [auth AAA] G [auth AAA] H [auth AAA] B [auth AAA], E [auth AAA], F [auth AAA], G [auth AAA], H [auth AAA], I [auth AAA], J [auth AAA], K [auth AAA], L [auth AAA]	CADMIUM ION Cd WLZRMCYVCSSEQC-UHFFFAOYSA-N		Interactions Focus chain B [auth AAA] Focus chain E [auth AAA] Focus chain F [auth AAA] Focus chain G [auth AAA] Focus chain H [auth AAA] Focus chain I [auth AAA] Focus chain J [auth AAA] Focus chain K [auth AAA] Focus chain L [auth AAA] Interactions & Density Focus chain B [auth AAA] Focus chain E [auth AAA] Focus chain F [auth AAA] Focus chain G [auth AAA] Focus chain H [auth AAA] Focus chain I [auth AAA] Focus chain J [auth AAA] Focus chain K [auth AAA] Focus chain L [auth AAA]
SO4 Query on SO4 Download:Ideal Coordinates CCD File SDF format, chain C [auth AAA] MOL2 format, chain C [auth AAA] mmCIF format, chain C [auth AAA]	C [auth AAA]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain C [auth AAA] Interactions & Density Focus chain C [auth AAA]
CL Query on CL Download:Ideal Coordinates CCD File SDF format, chain N [auth AAA] SDF format, chain O [auth AAA] SDF format, chain M [auth AAA] MOL2 format, chain N [auth AAA] MOL2 format, chain O [auth AAA] MOL2 format, chain M [auth AAA] mmCIF format, chain N [auth AAA] mmCIF format, chain O [auth AAA] mmCIF format, chain M [auth AAA]	M [auth AAA], N [auth AAA], O [auth AAA]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain M [auth AAA] Focus chain N [auth AAA] Focus chain O [auth AAA] Interactions & Density Focus chain M [auth AAA] Focus chain N [auth AAA] Focus chain O [auth AAA]