9IFN | pdb_00009ifn

PANDDA analysis - Crystal structure of Trypanosoma brucei trypanothione reductase in complex with Z436190540

PDB DOI: https://doi.org/10.2210/pdb9IFN/pdb

Classification: OXIDOREDUCTASE
Organism(s): Trypanosoma brucei
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-02-18 Released: 2025-11-12
Deposition Author(s): Exertier, C., Antonelli, L., Ilari, A., Fiorillo, A.
Funding Organization(s): iNEXT-Discovery

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.11 Å
R-Value Free:
0.240 (Depositor), 0.240 (DCC)
R-Value Work:
0.188 (Depositor), 0.188 (DCC)
R-Value Observed:
0.191 (Depositor)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

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

Literature

Expanding the molecular landscape of fragments binding to trypanothione reductase, a legitimate target for drug design against human African trypanosomiasis

Exertier, C., Antonelli, L., Brufani, V., Colotti, G., Ilari, A., Fiorillo, A.

(2025) Front Chem Biol Volume 4 - 2025

DOI: https://doi.org/10.3389/fchbi.2025.1605579

Macromolecule Content

Total Structure Weight: 218.72 kDa
Atom Count: 16,053
Modeled Residue Count: 1,951
Deposited Residue Count: 1,980
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Trypanothione reductase	A, B, C, D	495	Trypanosoma brucei	Mutation(s): 0 Gene Names: Tb10.406.0520 EC: 1.8.1.12
UniProt
Find proteins for Q389T8 (Trypanosoma brucei brucei (strain 927/4 GUTat10.1)) Explore Q389T8 Go to UniProtKB: Q389T8
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q389T8
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 6 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
FAD Query on FAD Download:Ideal Coordinates CCD File SDF format, chain V [auth D] SDF format, chain Q [auth C] SDF format, chain L [auth B] SDF format, chain E [auth A] MOL2 format, chain V [auth D] MOL2 format, chain Q [auth C] MOL2 format, chain L [auth B] MOL2 format, chain E [auth A] mmCIF format, chain V [auth D] mmCIF format, chain Q [auth C] mmCIF format, chain L [auth B] mmCIF format, chain E [auth A]	E [auth A], L [auth B], Q [auth C], V [auth D]	FLAVIN-ADENINE DINUCLEOTIDE C₂₇ H₃₃ N₉ O₁₅ P₂ VWWQXMAJTJZDQX-UYBVJOGSSA-N		Interactions Focus chain E [auth A] Focus chain L [auth B] Focus chain Q [auth C] Focus chain V [auth D] Interactions & Density Focus chain E [auth A] Focus chain L [auth B] Focus chain Q [auth C] Focus chain V [auth D]
A1I3V (Subject of Investigation/LOI) Query on A1I3V Download:Ideal Coordinates CCD File SDF format, chain I [auth A] MOL2 format, chain I [auth A] mmCIF format, chain I [auth A]	I [auth A]	1-[(2~{S},3~{a}~{R},6~{a}~{R})-2-methyl-3,3~{a},4,5,6,6~{a}-hexahydro-2~{H}-pyrrolo[3,4-b]pyrrol-1-yl]-2,2-dimethyl-propan-1-one C₁₂ H₂₂ N₂ O CYHXMDGVHQPUBV-UHFFFAOYSA-N		Interactions Focus chain I [auth A] Interactions & Density Focus chain I [auth A]
PEG Query on PEG Download:Ideal Coordinates CCD File SDF format, chain X [auth D] SDF format, chain T [auth C] SDF format, chain S [auth C] SDF format, chain H [auth A] SDF format, chain G [auth A] MOL2 format, chain X [auth D] MOL2 format, chain T [auth C] MOL2 format, chain S [auth C] MOL2 format, chain H [auth A] MOL2 format, chain G [auth A] mmCIF format, chain X [auth D] mmCIF format, chain T [auth C] mmCIF format, chain S [auth C] mmCIF format, chain H [auth A] mmCIF format, chain G [auth A]	G [auth A], H [auth A], S [auth C], T [auth C], X [auth D]	DI(HYDROXYETHYL)ETHER C₄ H₁₀ O₃ MTHSVFCYNBDYFN-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Focus chain H [auth A] Focus chain S [auth C] Focus chain T [auth C] Focus chain X [auth D] Interactions & Density Focus chain G [auth A] Focus chain H [auth A] Focus chain S [auth C] Focus chain T [auth C] Focus chain X [auth D]
BR Query on BR Download:Ideal Coordinates CCD File SDF format, chain O [auth B] SDF format, chain Y [auth D] SDF format, chain Z [auth D] SDF format, chain N [auth B] SDF format, chain K [auth A] SDF format, chain J [auth A] MOL2 format, chain O [auth B] MOL2 format, chain Y [auth D] MOL2 format, chain Z [auth D] MOL2 format, chain N [auth B] MOL2 format, chain K [auth A] MOL2 format, chain J [auth A] mmCIF format, chain O [auth B] mmCIF format, chain Y [auth D] mmCIF format, chain Z [auth D] mmCIF format, chain N [auth B] mmCIF format, chain K [auth A] mmCIF format, chain J [auth A]	J [auth A] K [auth A] N [auth B] O [auth B] Y [auth D] J [auth A], K [auth A], N [auth B], O [auth B], Y [auth D], Z [auth D]	BROMIDE ION Br CPELXLSAUQHCOX-UHFFFAOYSA-M		Interactions Focus chain J [auth A] Focus chain K [auth A] Focus chain N [auth B] Focus chain O [auth B] Focus chain Y [auth D] Focus chain Z [auth D] Interactions & Density Focus chain J [auth A] Focus chain K [auth A] Focus chain N [auth B] Focus chain O [auth B] Focus chain Y [auth D] Focus chain Z [auth D]
IMD Query on IMD Download:Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain W [auth D] SDF format, chain U [auth C] SDF format, chain R [auth C] SDF format, chain M [auth B] MOL2 format, chain F [auth A] MOL2 format, chain W [auth D] MOL2 format, chain U [auth C] MOL2 format, chain R [auth C] MOL2 format, chain M [auth B] mmCIF format, chain F [auth A] mmCIF format, chain W [auth D] mmCIF format, chain U [auth C] mmCIF format, chain R [auth C] mmCIF format, chain M [auth B]	F [auth A], M [auth B], R [auth C], U [auth C], W [auth D]	IMIDAZOLE C₃ H₅ N₂ RAXXELZNTBOGNW-UHFFFAOYSA-O		Interactions Focus chain F [auth A] Focus chain M [auth B] Focus chain R [auth C] Focus chain U [auth C] Focus chain W [auth D] Interactions & Density Focus chain F [auth A] Focus chain M [auth B] Focus chain R [auth C] Focus chain U [auth C] Focus chain W [auth D]
NA Query on NA Download:Ideal Coordinates CCD File SDF format, chain P [auth B] MOL2 format, chain P [auth B] mmCIF format, chain P [auth B]	P [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain P [auth B] Interactions & Density Focus chain P [auth B]