7pjn

Crystal Structure of Ivosidenib-resistant IDH1 variant R132C S280F in complex with NADPH and inhibitor DS-1001B

Method: X-RAY DIFFRACTION Dmax: 187.8 Å Quality: REASONABLE

1. Protein Identity and Related Structures Protein Identity & Related Structures

Isocitrate dehydrogenase [NADP] cytoplasmic

Homo sapiens

UniProt O75874

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–414 Chain D; UniProt 1–414 Mutation:R132C, S280F Non-standard monomer:Yes (specific site not provided by mmCIF) 7SU (E)-3-(1-(5-(2-fluoropropan-2-yl)-3-(2,4,6-trichlorophenyl)isoxazole-4-carbonyl)-3-methyl-1H-indol-4-yl)acrylic acid × 2 CIT CITRIC ACID × 3 GOL GLYCEROL × 2 NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;2 M Ammonium citrate tribasic, DTT 2 mM Resolution 2.45 Å R-free 0.228
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–414 Chain C; UniProt 1–414 Mutation:R132C, S280F Non-standard monomer:Yes (specific site not provided by mmCIF) 7SU (E)-3-(1-(5-(2-fluoropropan-2-yl)-3-(2,4,6-trichlorophenyl)isoxazole-4-carbonyl)-3-methyl-1H-indol-4-yl)acrylic acid × 2 CIT CITRIC ACID × 2 GOL GLYCEROL × 4 NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;2 M Ammonium citrate tribasic, DTT 2 mM Resolution 2.45 Å R-free 0.228

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

59 other PDB entries and 91 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IDHC_HUMAN
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 1–414; UniProt 1–414 Author chain C; PDBConstruct 1–414; UniProt 1–414 Author chain D; PDBConstruct 1–414; UniProt 1–414 Author chain B; PDBConstruct 1–414; UniProt 1–414

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 7pjn

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7pjn
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7pjn
Deposition date deposition_date2021-08-24
Structure title titleCrystal Structure of Ivosidenib-resistant IDH1 variant R132C S280F in complex with NADPH and inhibitor DS-1001B
Keywords keywordsOXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier52.15
Radius of gyration Rg (electron density) rg_electron53.31
Forward intensity I(0) i0496292000.00
Molecular weight molecular_weight182280.0 kDa
Excluded volume excluded_volume227080 ų
Envelope volume envelope_volume336150 ų
Hydration-shell volume shell_volume59345 ų
Envelope diameter envelope_diameter202.4
Shell Rg shell_rg46.32
Envelope Rg envelope_rg54.26
Shape Rg shape_rg53.32
Total Rg total_rg52.99
Total atoms total_atoms24754
Residues n_residues1622
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax187.8
Rg (real space) rg_real52.92
Rg uncertainty (real space) rg_real_error2.56
I(0) (real space) i0_real4.9630e+08
I(0) uncertainty (real space) i0_real_error9.6980e+06
Rg (reciprocal space) rg_reciprocal51.51
I(0) (reciprocal space) i0_reciprocal495300000.0000
Solution quality estimate total_estimate0.7229
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary37.5
Skewness Skewness skewness0.716
Kurtosis Kurtosis kurtosis-0.126
Angular range angular_range— – 0.1500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha34990000.0000
Real-space data points n_real_points31
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.490; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.638; Smooth: 0.287

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id7pjnA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology718 — Isopropylmalate Dehydrogenase
Homologous superfamily homologous superfamily10 — Isopropylmalate Dehydrogenase
Domain ID domain_id7pjnC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology718 — Isopropylmalate Dehydrogenase
Homologous superfamily homologous superfamily10 — Isopropylmalate Dehydrogenase

8. Citations (1)

9. Files and Curves (10)