8B7O

X-ray structure of Auranofin-human H-chain ferritin

PDB DOI: https://doi.org/10.2210/pdb8B7O/pdb

Classification: TRANSPORT PROTEIN
Organism(s): Homo sapiens
Expression System: Escherichia coli BL21
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: 1.17 Å
R-Value Free: 0.167
R-Value Work: 0.149

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 PubMedSearch on PubMed Central
DOI: https://doi.org/10.3390/ijms232214162
Primary Citation of 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: 22.63 kDa
Atom Count: 2,063
Modelled Residue Count: 174
Deposited Residue Count: 183
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ferritin heavy chain, N-terminally processed	A [auth AAA]	183	Homo sapiens	Mutation(s): 0 Gene Names: FTH1, FTH, FTHL6, OK/SW-cl.84, PIG15
UniProt & NIH Common Fund Data Resources
Find proteins for P02794 (Homo sapiens) Explore P02794 Go to UniProtKB: P02794
PHAROS: P02794 GTEx: ENSG00000167996
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P02794
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 Q [auth AAA] SDF format, chain R [auth AAA] SDF format, chain S [auth AAA] SDF format, chain T [auth AAA] SDF format, chain U [auth AAA] MOL2 format, chain Q [auth AAA] MOL2 format, chain R [auth AAA] MOL2 format, chain S [auth AAA] MOL2 format, chain T [auth AAA] MOL2 format, chain U [auth AAA]	Q [auth AAA], R [auth AAA], S [auth AAA], T [auth AAA], U [auth AAA]	GOLD ION Au ZBKIUFWVEIBQRT-UHFFFAOYSA-N		Interactions Focus chain Q [auth AAA] Focus chain R [auth AAA] Focus chain S [auth AAA] Focus chain T [auth AAA] Focus chain U [auth AAA] Interactions & Density Focus chain Q [auth AAA] Focus chain R [auth AAA] Focus chain S [auth AAA] Focus chain T [auth AAA] Focus chain U [auth AAA]
FE Query on FE Download Ideal Coordinates CCD File SDF format, chain P [auth AAA] MOL2 format, chain P [auth AAA]	P [auth AAA]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N		Interactions Focus chain P [auth AAA] Interactions & Density Focus chain P [auth AAA]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain B [auth AAA] SDF format, chain C [auth AAA] SDF format, chain D [auth AAA] SDF format, chain E [auth AAA] SDF format, chain N [auth AAA] SDF format, chain O [auth AAA] MOL2 format, chain B [auth AAA] MOL2 format, chain C [auth AAA] MOL2 format, chain D [auth AAA] MOL2 format, chain E [auth AAA] MOL2 format, chain N [auth AAA] MOL2 format, chain O [auth AAA]	B [auth AAA] C [auth AAA] D [auth AAA] E [auth AAA] N [auth AAA] B [auth AAA], C [auth AAA], D [auth AAA], E [auth AAA], N [auth AAA], O [auth AAA]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain B [auth AAA] Focus chain C [auth AAA] Focus chain D [auth AAA] Focus chain E [auth AAA] Focus chain N [auth AAA] Focus chain O [auth AAA] Interactions & Density Focus chain B [auth AAA] Focus chain C [auth AAA] Focus chain D [auth AAA] Focus chain E [auth AAA] Focus chain N [auth AAA] Focus chain O [auth AAA]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain F [auth AAA] SDF format, chain G [auth AAA] SDF format, chain H [auth AAA] SDF format, chain I [auth AAA] SDF format, chain J [auth AAA] SDF format, chain K [auth AAA] SDF format, chain L [auth AAA] SDF format, chain M [auth AAA] MOL2 format, chain F [auth AAA] MOL2 format, chain G [auth AAA] MOL2 format, chain H [auth AAA] MOL2 format, chain I [auth AAA] MOL2 format, chain J [auth AAA] MOL2 format, chain K [auth AAA] MOL2 format, chain L [auth AAA] MOL2 format, chain M [auth AAA]	F [auth AAA] G [auth AAA] H [auth AAA] I [auth AAA] J [auth AAA] F [auth AAA], G [auth AAA], H [auth AAA], I [auth AAA], J [auth AAA], K [auth AAA], L [auth AAA], M [auth AAA]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions 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] Focus chain M [auth AAA] Interactions & Density 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] Focus chain M [auth AAA]