6AJA

Crystal structure of Trypanosoma brucei glycosomal isocitrate dehydrogenase in complex with NADPH, alpha-ketoglutarate and ca2+

PDB DOI: https://doi.org/10.2210/pdb6AJA/pdb

Classification: OXIDOREDUCTASE
Organism(s): Trypanosoma brucei brucei
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2018-08-27 Released: 2019-08-28
Deposition Author(s): Wang, X., Inaoka, D.K., Shiba, T., Balogun, E.O., Ziebart, N., Allman, S., Watanabe, Y., Nozaki, T., Boshart, M., Bringaud, F., Harada, S., Kita, K.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.85 Å
R-Value Free: 0.288
R-Value Work: 0.198
R-Value Observed: 0.203

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

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

Literature

Biochemical characterization of a novel Trypanosoma brucei glycosomal isocitrate dehydrogenase with dual coenzyme specificity (NADP+/NAD+)

Wang, X., Inaoka, D.K., Shiba, T., Balogun, E.O., Ziebart, N., Allman, S., Watanabe, Y., Nozaki, T., Boshart, M., Bringaud, F., Harada, S., Kita, K.

To be published.

Macromolecule Content

Total Structure Weight: 190.81 kDa
Atom Count: 13,411
Modelled Residue Count: 1,647
Deposited Residue Count: 1,652
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Isocitrate dehydrogenase [NADP]	A, B, C, D	413	Trypanosoma brucei brucei	Mutation(s): 1 EC: 1.1.1.42
UniProt
Find proteins for Q387G0 (Trypanosoma brucei brucei (strain 927/4 GUTat10.1)) Explore Q387G0 Go to UniProtKB: Q387G0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q387G0
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAP Query on NAP Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain J [auth B] SDF format, chain K [auth C] SDF format, chain O [auth D] MOL2 format, chain E [auth A] MOL2 format, chain J [auth B] MOL2 format, chain K [auth C] MOL2 format, chain O [auth D] mmCIF format, chain E [auth A] mmCIF format, chain J [auth B] mmCIF format, chain K [auth C] mmCIF format, chain O [auth D]	E [auth A], J [auth B], K [auth C], O [auth D]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C₂₁ H₂₈ N₇ O₁₇ P₃ XJLXINKUBYWONI-NNYOXOHSSA-N		Interactions Focus chain E [auth A] Focus chain J [auth B] Focus chain K [auth C] Focus chain O [auth D] Interactions & Density Focus chain E [auth A] Focus chain J [auth B] Focus chain K [auth C] Focus chain O [auth D]
AKG Query on AKG Download Ideal Coordinates CCD File SDF format, chain Q [auth D] MOL2 format, chain Q [auth D] mmCIF format, chain Q [auth D]	Q [auth D]	2-OXOGLUTARIC ACID C₅ H₆ O₅ KPGXRSRHYNQIFN-UHFFFAOYSA-N		Interactions Focus chain Q [auth D] Interactions & Density Focus chain Q [auth D]
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain H [auth A] SDF format, chain G [auth A] SDF format, chain M [auth C] SDF format, chain N [auth C] MOL2 format, chain H [auth A] MOL2 format, chain G [auth A] MOL2 format, chain M [auth C] MOL2 format, chain N [auth C] mmCIF format, chain H [auth A] mmCIF format, chain G [auth A] mmCIF format, chain M [auth C] mmCIF format, chain N [auth C]	G [auth A], H [auth A], M [auth C], N [auth C]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Focus chain H [auth A] Focus chain M [auth C] Focus chain N [auth C] Interactions & Density Focus chain G [auth A] Focus chain H [auth A] Focus chain M [auth C] Focus chain N [auth C]
CA Query on CA Download Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain I [auth A] SDF format, chain L [auth C] SDF format, chain P [auth D] MOL2 format, chain F [auth A] MOL2 format, chain I [auth A] MOL2 format, chain L [auth C] MOL2 format, chain P [auth D] mmCIF format, chain F [auth A] mmCIF format, chain I [auth A] mmCIF format, chain L [auth C] mmCIF format, chain P [auth D]	F [auth A], I [auth A], L [auth C], P [auth D]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N		Interactions Focus chain F [auth A] Focus chain I [auth A] Focus chain L [auth C] Focus chain P [auth D] Interactions & Density Focus chain F [auth A] Focus chain I [auth A] Focus chain L [auth C] Focus chain P [auth D]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.85 Å
R-Value Free: 0.288
R-Value Work: 0.198
R-Value Observed: 0.203
Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 120.894	α = 90
b = 70.455	β = 113.39
c = 122.052	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2019-08-28

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2019-08-28
Type: Initial release
Version 1.1: 2023-11-22
Changes: Data collection, Database references, Derived calculations, Refinement description